{"id":36763,"date":"2026-08-13T20:17:21","date_gmt":"2026-08-13T11:17:21","guid":{"rendered":"https:\/\/genai-ai.co.jp\/ai-kanri\/?p=36763"},"modified":"2026-08-13T23:44:36","modified_gmt":"2026-08-13T14:44:36","slug":"python-csv-guide","status":"publish","type":"post","link":"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/python-csv-guide\/","title":{"rendered":"\u30102026\u5e748\u6708\u6700\u65b0\u3011Python\u3067CSV\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306fClaude Code\u306b\u4efb\u305b\u308b\u9078\u629e\u80a2\u3082"},"content":{"rendered":"\n<style>\n.g-flow-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;}\n.g-flow-item{background:linear-gradient(135deg,#1a1a1a,#2a1015);color:#fff;border-radius:8px;padding:16px 14px;min-width:130px;flex:1;text-align:center;}\n.g-flow-arrow{color:#dc2626;font-size:20px;font-weight:700;}\n.g-card-row{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 32px;}\n.g-card-row>div{flex:1;min-width:220px;}\n@media(max-width:600px){\n  .g-flow-row{flex-direction:column;}\n  .g-flow-arrow{transform:rotate(90deg);}\n  .g-card-row{flex-direction:column;}\n  .g-card-row>div{min-width:100%;}\n}\n<\/style>\n\n\n\n<div style=\"margin:0 0 32px;\">\n  <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/08\/thumb-python-csv-guide-3.jpg\" alt=\"\u30102026\u5e748\u6708\u6700\u65b0\u3011Python\u3067CSV\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306fClaude Code\u306b\u4efb\u305b\u308b\u9078\u629e\u80a2\u3082\" style=\"width:100%;height:auto;border-radius:12px;display:block;\">\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u53d6\u5f15\u5148\u304b\u3089\u5c4a\u3044\u305fCSV\u30d5\u30a1\u30a4\u30eb\u3092\u3001Python\u3067\u8aad\u307f\u8fbc\u3093\u3067\u96c6\u8a08\u3057\u305f\u3044\u300d\u300c\u6bce\u6708\u306e\u58f2\u4e0a\u30c7\u30fc\u30bf\u3092CSV\u3067\u66f8\u304d\u51fa\u3057\u3066\u3001\u5225\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u6e21\u3057\u305f\u3044\u300d\u2014\u2014\u696d\u52d9\u52b9\u7387\u5316\u3092\u9032\u3081\u308b\u306a\u304b\u3067\u3001\u3053\u3046\u3057\u305f\u5834\u9762\u306b\u5fc5\u305a\u3068\u8a00\u3063\u3066\u3044\u3044\u307b\u3069\u51fa\u304f\u308f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\uff08Comma-Separated Values\uff09\u306f\u3001Excel\u3067\u3082Google\u30b9\u30d7\u30ec\u30c3\u30c9\u30b7\u30fc\u30c8\u3067\u3082\u4f1a\u8a08\u30bd\u30d5\u30c8\u3067\u3082\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u300c\u30c7\u30fc\u30bf\u306e\u3084\u308a\u53d6\u308a\u306e\u5171\u901a\u8a00\u8a9e\u300d\u3067\u3059\u3002\u305d\u3057\u3066Python\u306b\u306f\u3001\u3053\u306eCSV\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u305f\u3081\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Python\u3067<strong>CSV\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080\u65b9\u6cd5\u30fb\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/strong>\u3092\u57fa\u672c\u304b\u3089\u89e3\u8aac\u3057\u3001\u8f9e\u66f8\u578b\u3067\u6271\u3046<code>DictReader<\/code>\uff0f<code>DictWriter<\/code>\u3001\u5b9f\u52d9\u3067\u983b\u767a\u3059\u308b\u6587\u5b57\u30b3\u30fc\u30c9\u30fb\u6539\u884c\u30b3\u30fc\u30c9\u306e\u30c8\u30e9\u30d6\u30eb\u3001\u305d\u3057\u3066\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u6271\u3046\u969b\u306e\u5b9a\u756a\u30e9\u30a4\u30d6\u30e9\u30ea<strong>pandas<\/strong>\u3068\u306e\u4f7f\u3044\u5206\u3051\u307e\u3067\u4e00\u6c17\u901a\u8cab\u3067\u307e\u3068\u3081\u307e\u3059\u3002\u3055\u3089\u306b\u5f8c\u534a\u3067\u306f\u3001\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u304cCSV\u51e6\u7406\u3092\u542b\u3080\u30c7\u30fc\u30bf\u96c6\u8a08\u696d\u52d9\u3092\u3069\u308c\u3060\u3051\u52b9\u7387\u5316\u3057\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u5b9f\u904b\u7528\u30c7\u30fc\u30bf\u3068\u3001\u300c\u305d\u3082\u305d\u3082\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u305a\u306bClaude Code\u306b\u4efb\u305b\u308b\u300d\u3068\u3044\u3046\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u306e\u9078\u629e\u80a2\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">CSV\u306e\u8aad\u307f\u66f8\u304d\u306fPython\u306e\u57fa\u672c\u4e2d\u306e\u57fa\u672c\u3067\u3059\u304c\u3001\u5b9f\u52d9\u3067\u306f\u300c\u6587\u5b57\u5316\u3051\u3059\u308b\u300d\u300cExcel\u3067\u958b\u304f\u3068\u5d29\u308c\u308b\u300d\u3068\u3044\u3063\u305f\u30c8\u30e9\u30d6\u30eb\u306e\u65b9\u304c\u983b\u767a\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306f\u30b3\u30fc\u30c9\u4f8b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u3064\u307e\u305a\u304d\u30dd\u30a4\u30f3\u30c8\u3092\u91cd\u70b9\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\u3067\u3082\u7d4c\u7406\u30fb\u55b6\u696d\u30fb\u5e83\u544a\u306e\u30c7\u30fc\u30bf\u96c6\u8a08\u3067CSV\u3092\u65e5\u5e38\u7684\u306b\u6271\u3063\u3066\u3044\u307e\u3059\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u308b\u4eba\u306f<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3068pandas\u3092\u899a\u3048\u3066\u304a\u3051\u3070\u5927\u534a\u306e\u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3057\u3001\u66f8\u3051\u306a\u3044\u30fb\u66f8\u304d\u305f\u304f\u306a\u3044\u65b9\u306fClaude Code\u306b\u6295\u3052\u3066\u3057\u307e\u3046\u306e\u3082\u5341\u5206\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>csv\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong>\u3092\u4f7f\u3063\u305fCSV\u306e\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u306e\u57fa\u672c\u69cb\u6587<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>DictReader \/ DictWriter<\/strong>\u3067\u5217\u540d\uff08\u30d8\u30c3\u30c0\u30fc\uff09\u3092\u4f7f\u3063\u3066\u8f9e\u66f8\u578b\u3067\u6271\u3046\u65b9\u6cd5<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u6587\u5b57\u30b3\u30fc\u30c9\uff08encoding\uff09<\/strong>\u3068<strong>\u6539\u884c\u30b3\u30fc\u30c9<\/strong>\u3067\u8d77\u304d\u308b\u5178\u578b\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u3068\u5bfe\u51e6\u6cd5<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u5927\u91cf\u30c7\u30fc\u30bf\u30fb\u8907\u96d1\u306a\u96c6\u8a08\u3092\u6271\u3046\u3068\u304d\u306e<strong>pandas<\/strong>\u3068\u3044\u3046\u9078\u629e\u80a2\u3068\u306e\u4f7f\u3044\u5206\u3051<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u5f0a\u793eGENAI\u306e<strong>\u30c7\u30fc\u30bf\u51e6\u7406\u696d\u52d9\u306e\u5b9f\u904b\u7528\u30c7\u30fc\u30bf<\/strong>\uff08\u524a\u6e1b\u6642\u9593\u306e\u5b9f\u4f8b\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u300c\u81ea\u5206\u3067\u66f8\u304f\u300d\u304b\u300cClaude Code\u306b\u4efb\u305b\u308b\u300d\u304b\u3092\u5224\u65ad\u3059\u308b\u57fa\u6e96<\/span><\/div>\n\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-01\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">01<\/span>\n  <span class=\"section-label\" style=\"display:block;\">CSV BASICS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">CSV\u30d5\u30a1\u30a4\u30eb\u3068\u306f\uff1f\u696d\u52d9\u3067\u5fc5\u305a\u51fa\u4f1a\u3046\u30c7\u30fc\u30bf\u5f62\u5f0f<\/span>\n  <span class=\"section-desc\">\u306a\u305cPython\u3067CSV\u3092\u6271\u3048\u308b\u3068\u696d\u52d9\u52b9\u7387\u5316\u304c\u9032\u3080\u306e\u304b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u3068\u306f\u300cComma-Separated Values\uff08\u30ab\u30f3\u30de\u533a\u5207\u308a\u5024\uff09\u300d\u306e\u7565\u3067\u3001\u305d\u306e\u540d\u306e\u901a\u308a<strong>\u30c7\u30fc\u30bf\u3092\u30ab\u30f3\u30de\uff08,\uff09\u3067\u533a\u5207\u3063\u3066\u4e26\u3079\u305f\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb<\/strong>\u3067\u3059\u30021\u884c\u304c1\u4ef6\u306e\u30c7\u30fc\u30bf\uff08\u30ec\u30b3\u30fc\u30c9\uff09\u306b\u5bfe\u5fdc\u3057\u3001\u5404\u884c\u306e\u4e2d\u306e\u5024\u304c\u30ab\u30f3\u30de\u3067\u533a\u5207\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>CSV\uff08Comma-Separated Values\uff09<\/strong>\uff1a\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u30c7\u30fc\u30bf\u3092\u4e26\u3079\u305f\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3002\u62e1\u5f35\u5b50\u306f<code>.csv<\/code>\u3002Excel\u30fb\u30b9\u30d7\u30ec\u30c3\u30c9\u30b7\u30fc\u30c8\u30fb\u4f1a\u8a08\u30bd\u30d5\u30c8\u30fbPOS\u30ec\u30b8\u30fbCRM\u306a\u3069\u3001\u696d\u7a2e\u3092\u554f\u308f\u305a\u307b\u307c\u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u304cCSV\u3067\u306e\u30c7\u30fc\u30bf\u5165\u51fa\u529b\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u300c\u7570\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u540c\u58eb\u3067\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u5171\u901a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u300d\u3068\u3057\u3066\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u300c\u6c0f\u540d,\u5e74\u9f62,\u90e8\u7f72\u300d\u3068\u3044\u3046\u898b\u51fa\u3057\uff08\u30d8\u30c3\u30c0\u30fc\u884c\uff09\u306e\u4e0b\u306b\u300c\u5c71\u7530\u592a\u90ce,32,\u55b6\u696d\u90e8\u300d\u306e\u3088\u3046\u306a\u884c\u304c\u7d9a\u304f\u306e\u304c\u5178\u578b\u7684\u306aCSV\u3067\u3059\u3002\u898b\u305f\u76ee\u306f\u5358\u7d14\u306a\u30c6\u30ad\u30b9\u30c8\u3067\u3059\u304c\u3001Excel\u3067\u958b\u3051\u3070\u81ea\u52d5\u7684\u306b\u8868\u3068\u3057\u3066\u6574\u5f62\u3055\u308c\u3001\u30b7\u30b9\u30c6\u30e0\u9593\u3067\u306e\u30c7\u30fc\u30bf\u53d7\u3051\u6e21\u3057\u306b\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1-1. \u306a\u305cPython\u3067CSV\u3092\u6271\u3046\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Excel\u3067\u3082CSV\u306f\u958b\u3051\u308b\u306e\u3067\u3001\u300c\u308f\u3056\u308f\u3056Python\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u300d\u3068\u601d\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u306fPython\u3067\u306e\u81ea\u52d5\u51e6\u7406\u304c\u5727\u5012\u7684\u306b\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u6bce\u65e5\u30fb\u6bce\u9031<\/strong>\u306a\u3069\u5b9a\u671f\u7684\u306b\u540c\u3058\u5f62\u5f0f\u306eCSV\u3092\u51e6\u7406\u3059\u308b\uff08\u624b\u4f5c\u696d\u3060\u3068\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u30df\u30b9\u3082\u8d77\u304d\u3084\u3059\u3044\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u8907\u6570\u306eCSV\u30d5\u30a1\u30a4\u30eb\u3092<strong>\u4e00\u62ec\u3067\u7d50\u5408\u30fb\u96c6\u8a08<\/strong>\u3057\u305f\u3044<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>CSV\u306e\u5185\u5bb9\u3092\u6761\u4ef6\u3067<strong>\u7d5e\u308a\u8fbc\u307f\u30fb\u52a0\u5de5<\/strong>\u3057\u3066\u304b\u3089\u3001\u5225\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u6e21\u3057\u305f\u3044<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u6570\u4e07\u301c\u6570\u5341\u4e07\u884c\u3068\u3044\u3046<strong>Excel\u3067\u306f\u958b\u304f\u3060\u3051\u3067\u91cd\u304f\u306a\u308b\u898f\u6a21<\/strong>\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3044\u305f\u3044<\/span><\/div>\n\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">Excel\u3067\u5341\u5206\u306a\u30b1\u30fc\u30b9\u3082\u3042\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u6570\u5341\u884c\u301c\u6570\u767e\u884c\u7a0b\u5ea6\u306eCSV\u30921\u56de\u3060\u3051\u898b\u308b\u3001\u3068\u3044\u3046\u306e\u3067\u3042\u308c\u3070Excel\u3067\u5341\u5206\u3067\u3059\u3002Python\u306e\u51fa\u756a\u306f\u300c\u540c\u3058\u51e6\u7406\u3092\u7e70\u308a\u8fd4\u3059\u300d\u300c\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u6271\u3046\u300d\u300c\u4ed6\u306e\u30b7\u30b9\u30c6\u30e0\u3068\u81ea\u52d5\u9023\u643a\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u3001<strong>\u53cd\u5fa9\u6027\u30fb\u81ea\u52d5\u5316\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5927\u304d\u3044\u5834\u9762<\/strong>\u3060\u3068\u8003\u3048\u308b\u3068\u5224\u65ad\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1-2. \u3053\u306e\u8a18\u4e8b\u3067\u4f7f\u3046\u524d\u63d0\u74b0\u5883<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u306e\u30b3\u30fc\u30c9\u4f8b\u306f\u3001Python 3\u7cfb\u306e\u6a19\u6e96\u74b0\u5883\uff08\u8ffd\u52a0\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u4e0d\u8981\uff09\u3067\u52d5\u4f5c\u3059\u308b<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4e2d\u5fc3\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u5f8c\u534a\u3067\u7d39\u4ecb\u3059\u308b<code>pandas<\/code>\u3060\u3051\u306f\u5225\u9014\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff08<code>pip install pandas<\/code>\uff09\u304c\u5fc5\u8981\u306a\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u30e9\u30a4\u30d6\u30e9\u30ea\uff08\u30e2\u30b8\u30e5\u30fc\u30eb\uff09<\/strong>\uff1a\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3055\u308c\u305f\u300c\u4fbf\u5229\u306a\u6a5f\u80fd\u306e\u307e\u3068\u307e\u308a\u300d\u306e\u3053\u3068\u3002Python\u306b\u306f\u6700\u521d\u304b\u3089\u4f7f\u3048\u308b\u300c\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u300d\uff08<code>csv<\/code>\u306a\u3069\uff09\u3068\u3001\u5225\u9014\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5fc5\u8981\u306a\u300c\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u300d\uff08<code>pandas<\/code>\u306a\u3069\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u30bc\u30ed\u304b\u3089\u81ea\u5206\u3067\u51e6\u7406\u3092\u66f8\u304b\u306a\u304f\u3066\u3082\u3001\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u547c\u3073\u51fa\u3059\u3060\u3051\u3067\u4f7f\u3048\u308b\u306e\u304c\u5229\u70b9\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-02\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">02<\/span>\n  <span class=\"section-label\" style=\"display:block;\">READING CSV<\/span>\n  <span class=\"section-title\" style=\"display:block;\">Python\u3067csv\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3063\u305fCSV\u306e\u8aad\u307f\u8fbc\u307f\u65b9\u6cd5<\/span>\n  <span class=\"section-desc\">csv.reader()\u306e\u57fa\u672c\u69cb\u6587\u3068\u3001\u5b9f\u52d9\u3067\u5fc5\u9808\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u8a2d\u5b9a<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u3092\u8aad\u307f\u8fbc\u3080\u6700\u3082\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u306f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3046\u65b9\u6cd5\u3067\u3059\u3002\u307e\u305a\u306f\u6700\u5c0f\u69cb\u6210\u306e\u30b3\u30fc\u30c9\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>import csv<\/code>\u3067\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u3001<code>open()<\/code>\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u305f\u3046\u3048\u3067<code>csv.reader()<\/code>\u306b\u6e21\u3059\u3068\u30011\u884c\u305a\u3064\u300c\u5024\u306e\u30ea\u30b9\u30c8\u300d\u3068\u3057\u3066\u53d6\u308a\u51fa\u305b\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<code>for row in reader:<\/code>\u306e\u3088\u3046\u306b\u30eb\u30fc\u30d7\u3067\u56de\u3059\u3068\u3001<code>row<\/code>\u306b\u306f<code>['\u5c71\u7530\u592a\u90ce', '32', '\u55b6\u696d\u90e8']<\/code>\u306e\u3088\u3046\u306a\u30ea\u30b9\u30c8\u304c1\u884c\u5206\u305a\u3064\u5165\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>csv.reader()<\/strong>\uff1a\u30d5\u30a1\u30a4\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d7\u3051\u53d6\u308a\u30011\u884c\u305a\u3064\u300c\u30ab\u30f3\u30de\u3067\u533a\u5207\u3089\u308c\u305f\u5024\u306e\u30ea\u30b9\u30c8\u300d\u3068\u3057\u3066\u8aad\u307f\u51fa\u305b\u308b\u3088\u3046\u306b\u3059\u308bcsv\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u95a2\u6570\u3002\u8fd4\u3063\u3066\u304f\u308b\u5024\u306f\u3059\u3079\u3066<strong>\u6587\u5b57\u5217\u578b<\/strong>\u3067\u3001\u6570\u5024\u3068\u3057\u3066\u8a08\u7b97\u3057\u305f\u3044\u5834\u5408\u306f<code>int()<\/code>\u3084<code>float()<\/code>\u3067\u5909\u63db\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2-1. open\u306eencoding\u30fbnewline\u6307\u5b9a\u3092\u5fd8\u308c\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u52d9\u3067\u3064\u307e\u305a\u304f\u6700\u5927\u306e\u30dd\u30a4\u30f3\u30c8\u304c\u3001<code>open()<\/code>\u6642\u306e<strong>encoding\uff08\u6587\u5b57\u30b3\u30fc\u30c9\uff09<\/strong>\u3068<strong>newline\uff08\u6539\u884c\u30b3\u30fc\u30c9\uff09<\/strong>\u306e\u6307\u5b9a\u3067\u3059\u3002\u65e5\u672c\u8a9e\u3092\u542b\u3080CSV\u3092\u958b\u304f\u3068\u304d\u306f<code>encoding='utf-8'<\/code>\u306e\u3088\u3046\u306b\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u660e\u793a\u3057\u3001\u3055\u3089\u306b<code>newline=''<\/code>\u3092\u6307\u5b9a\u3059\u308b\u306e\u304c\u516c\u5f0f\u306b\u63a8\u5968\u3055\u308c\u3066\u3044\u308b\u66f8\u304d\u65b9\u3067\u3059\u3002\u8aad\u307f\u8fbc\u307f\u6642\u306b<code>newline=''<\/code>\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u30bb\u30eb\u5185\u306b\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u3093\u3060\u6539\u884c\uff08\u30bb\u30eb\u5185\u6539\u884c\uff09\u304c\u542b\u307e\u308c\u308b\u30c7\u30fc\u30bf\u3067\u3001\u305d\u306e\u6539\u884c\u304c\u6b63\u3057\u304f\u89e3\u91c8\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u66f8\u304d\u8fbc\u307f\u6642\u306b<code>newline=''<\/code>\u3092\u7701\u7565\u3059\u308b\u3068\u3001Windows\u74b0\u5883\u30671\u884c\u304a\u304d\u306b\u4f59\u5206\u306a\u7a7a\u884c\u304c\u633f\u5165\u3055\u308c\u3066\u3057\u307e\u3046\u4e0d\u5177\u5408\u304c\u8d77\u304d\u308b\u305f\u3081\u3001\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u306e\u3069\u3061\u3089\u3067\u3082\u6307\u5b9a\u3057\u3066\u304a\u304f\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u30df\u30b9\u30de\u30c3\u30c1\u306b\u6ce8\u610f<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">Excel\u3067\u300cCSV\uff08\u30ab\u30f3\u30de\u533a\u5207\u308a\uff09\u300d\u3068\u3057\u3066\u4fdd\u5b58\u3057\u305f\u65e5\u672c\u8a9eCSV\u306f\u3001\u74b0\u5883\u306b\u3088\u3063\u3066\u6587\u5b57\u30b3\u30fc\u30c9\u304c<strong>Shift-JIS\uff08cp932\uff09<\/strong>\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<code>encoding='utf-8'<\/code>\u3067\u958b\u3053\u3046\u3068\u3059\u308b\u3068<code>UnicodeDecodeError<\/code>\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u305d\u306e\u5834\u5408\u306f<code>encoding='cp932'<\/code>\u3084<code>encoding='shift_jis'<\/code>\u3092\u8a66\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u300c\u8aad\u307f\u8fbc\u3081\u306a\u3044\uff1d\u30d5\u30a1\u30a4\u30eb\u304c\u58ca\u308c\u3066\u3044\u308b\u300d\u3067\u306f\u306a\u304f\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u6307\u5b9a\u30df\u30b9\u3067\u3042\u308b\u30b1\u30fc\u30b9\u304c\u5927\u534a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u6587\u5b57\u30b3\u30fc\u30c9\uff08\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\uff09<\/strong>\uff1a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u6587\u5b57\u3092\u3069\u306e\u6570\u5024\u306e\u4e26\u3073\u3068\u3057\u3066\u6271\u3046\u304b\u306e\u898f\u683c\u3002\u65e5\u672c\u8a9e\u3067\u306f\u4e3b\u306b<strong>UTF-8<\/strong>\u3068<strong>Shift-JIS\uff08cp932\uff09<\/strong>\u304c\u4f7f\u308f\u308c\u3001\u3053\u306e2\u3064\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044\u3068\u6587\u5b57\u5316\u3051\u3084\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002Excel\u7531\u6765\u306eCSV\u306fShift-JIS\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u4e00\u65b9\u3001Web\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u51fa\u529b\u3055\u308c\u308bCSV\u306fUTF-8\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3001\u3068\u3044\u3046\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2-2. \u30d8\u30c3\u30c0\u30fc\u884c\u3092\u8aad\u307f\u98db\u3070\u3059\uff0f\u53d6\u5f97\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u306e1\u884c\u76ee\u304c\u5217\u540d\uff08\u30d8\u30c3\u30c0\u30fc\uff09\u306e\u5834\u5408\u3001<code>next(reader)<\/code>\u30921\u56de\u547c\u3073\u51fa\u3059\u3053\u3068\u3067\u3001\u305d\u306e\u30d8\u30c3\u30c0\u30fc\u884c\u3060\u3051\u3092\u8aad\u307f\u98db\u3070\u3057\u3066\u304b\u3089\u672c\u4f53\u306e\u30c7\u30fc\u30bf\u884c\u306e\u51e6\u7406\u306b\u5165\u308c\u307e\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u81ea\u4f53\u3092\u5909\u6570\u3068\u3057\u3066\u4fdd\u6301\u3057\u3066\u304a\u304d\u305f\u3044\u5834\u5408\u306f\u3001<code>header = next(reader)<\/code>\u306e\u3088\u3046\u306b\u4ee3\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u5927\u91cf\u30c7\u30fc\u30bf\u306f\u30e1\u30e2\u30ea\u52b9\u7387\u3082\u610f\u8b58\u3059\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">csv.reader()\u306f1\u884c\u305a\u3064\u8aad\u307f\u51fa\u3059\u4ed5\u7d44\u307f\u306e\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u3092\u4e00\u5ea6\u306b\u30e1\u30e2\u30ea\u3078\u5c55\u958b\u3059\u308b<code>readlines()<\/code>\u306e\u3088\u3046\u306a\u65b9\u6cd5\u3088\u308a\u3082\u30e1\u30e2\u30ea\u52b9\u7387\u304c\u826f\u3044\u8a2d\u8a08\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6570\u4e07\u884c\u3092\u8d85\u3048\u308bCSV\u3067\u3082\u3001for\u6587\u30671\u884c\u305a\u3064\u51e6\u7406\u3057\u3066\u3044\u304f\u5206\u306b\u306f\u5927\u304d\u306a\u554f\u984c\u306f\u8d77\u304d\u306b\u304f\u3044\u69cb\u9020\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8aad\u307f\u8fbc\u3093\u3060\u5404\u884c\u306e\u30c7\u30fc\u30bf\u306f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u96c6\u8a08\u30fb\u6761\u4ef6\u5206\u5c90\u30fb\u5225\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u66f8\u304d\u51fa\u3057\u306a\u3069\u306e\u52a0\u5de5\u51e6\u7406\u306b\u56de\u3059\u306e\u304c\u5178\u578b\u7684\u306a\u6d41\u308c\u3067\u3059\u3002\u6b21\u306e\u7ae0\u3067\u306f\u3001\u9006\u306bPython\u304b\u3089CSV\u3078\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300cencoding\u3068newline\u3092\u6bce\u56de\u30bb\u30c3\u30c8\u3067\u66f8\u304f\u300d\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3055\u3048\u62bc\u3055\u3048\u3066\u304a\u3051\u3070\u3001CSV\u8aad\u307f\u8fbc\u307f\u3067\u8a70\u307e\u308b\u5834\u9762\u306e\u5927\u534a\u306f\u9632\u3052\u307e\u3059\u3002\u9006\u306b\u8a00\u3046\u3068\u3001\u3053\u3053\u3067\u3064\u307e\u305a\u3044\u3066\u3044\u308b\u76f8\u8ac7\u306e9\u5272\u306f\u3053\u306e2\u3064\u306e\u3069\u3061\u3089\u304b\u304c\u539f\u56e0\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-03\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">03<\/span>\n  <span class=\"section-label\" style=\"display:block;\">WRITING CSV<\/span>\n  <span class=\"section-title\" style=\"display:block;\">Python\u3067csv\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/span>\n  <span class=\"section-desc\">csv.writer()\u3068\u3001Excel\u3067\u6587\u5b57\u5316\u3051\u3057\u306a\u3044\u305f\u3081\u306e\u8a2d\u5b9a<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u3078\u306e\u66f8\u304d\u8fbc\u307f\u3082\u3001\u8aad\u307f\u8fbc\u307f\u3068\u307b\u307c\u5bfe\u306b\u306a\u308b\u69cb\u6587\u3067\u884c\u3048\u307e\u3059\u3002<code>open()<\/code>\u3092\u66f8\u304d\u8fbc\u307f\u30e2\u30fc\u30c9\uff08<code>'w'<\/code>\uff09\u3067\u958b\u304d\u3001<code>csv.writer()<\/code>\u3092\u4f7f\u3063\u3066<code>writerow()<\/code>\uff081\u884c\u3060\u3051\u66f8\u304f\uff09\u307e\u305f\u306f<code>writerows()<\/code>\uff08\u8907\u6570\u884c\u3092\u307e\u3068\u3081\u3066\u66f8\u304f\uff09\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>csv.writer()<\/strong>\uff1a\u30d5\u30a1\u30a4\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u30ea\u30b9\u30c8\u3084\u8907\u6570\u884c\u306e\u30ea\u30b9\u30c8\u3092CSV\u5f62\u5f0f\u3067\u66f8\u304d\u8fbc\u3081\u308b\u3088\u3046\u306b\u3059\u308bcsv\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u95a2\u6570\u3002<code>writerow(['\u5c71\u7530\u592a\u90ce', 32, '\u55b6\u696d\u90e8'])<\/code>\u306e\u3088\u3046\u306b1\u884c\u5206\u306e\u30ea\u30b9\u30c8\u3092\u6e21\u3059\u3068\u3001\u81ea\u52d5\u3067\u30ab\u30f3\u30de\u533a\u5207\u308a\u30fb\u6539\u884c\u4ed8\u304d\u306e1\u884c\u3068\u3057\u3066\u66f8\u304d\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3-1. writerow\u3068writerows\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u884c\u305a\u3064\u9806\u756a\u306b\u66f8\u304d\u8fbc\u307f\u305f\u3044\u5834\u5408\u306f<code>writerow()<\/code>\u3092\u30eb\u30fc\u30d7\u306e\u4e2d\u3067\u547c\u3073\u51fa\u3057\u3001\u3042\u3089\u304b\u3058\u3081\u30ea\u30b9\u30c8\u306e\u30ea\u30b9\u30c8\uff082\u6b21\u5143\u306e\u30c7\u30fc\u30bf\uff09\u304c\u7528\u610f\u3067\u304d\u3066\u3044\u308b\u5834\u5408\u306f<code>writerows()<\/code>\u306b\u4e00\u62ec\u3067\u6e21\u3059\u3068\u30011\u56de\u306e\u547c\u3073\u51fa\u3057\u3067\u5168\u884c\u3092\u66f8\u304d\u8fbc\u3081\u307e\u3059\u3002\u96c6\u8a08\u51e6\u7406\u306e\u7d50\u679c\u3092\u307e\u3068\u3081\u3066\u51fa\u529b\u3057\u305f\u3044\u30b1\u30fc\u30b9\u3067\u306f<code>writerows()<\/code>\u306e\u65b9\u304c\u30b3\u30fc\u30c9\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u66f8\u304d\u8fbc\u307f\u30e2\u30fc\u30c9\u306e\u4e0a\u66f8\u304d\u306b\u6ce8\u610f<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\"><code>open('output.csv', 'w', ...)<\/code>\u306e<code>'w'<\/code>\u30e2\u30fc\u30c9\u306f\u3001\u540c\u540d\u30d5\u30a1\u30a4\u30eb\u304c\u65e2\u306b\u5b58\u5728\u3059\u308b\u5834\u5408<strong>\u4e2d\u8eab\u3092\u5b8c\u5168\u306b\u4e0a\u66f8\u304d<\/strong>\u3057\u307e\u3059\u3002\u65e2\u5b58\u30c7\u30fc\u30bf\u306b\u8ffd\u8a18\u3057\u305f\u3044\u5834\u5408\u306f<code>'a'<\/code>\uff08\u8ffd\u8a18\u30e2\u30fc\u30c9\uff09\u3092\u4f7f\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u300c\u5b9f\u884c\u3059\u308b\u305f\u3073\u306b\u524d\u56de\u306e\u7d50\u679c\u304c\u6d88\u3048\u3066\u3044\u305f\u300d\u3068\u3044\u3046\u4e8b\u6545\u306f\u3001\u3053\u306e\u30e2\u30fc\u30c9\u6307\u5b9a\u306e\u52d8\u9055\u3044\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u30c8\u30e9\u30d6\u30eb\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3-2. Excel\u3067CSV\u3092\u958b\u3044\u305f\u3068\u304d\u306b\u6587\u5b57\u5316\u3051\u3057\u306a\u3044\u305f\u3081\u306e\u4e00\u624b\u9593<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Python\u3067<code>encoding='utf-8'<\/code>\u306eCSV\u3092\u66f8\u304d\u51fa\u3057\u3001\u305d\u308c\u3092Windows\u7248Excel\u3067\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3057\u3066\u958b\u304f\u3068\u3001\u65e5\u672c\u8a9e\u90e8\u5206\u304c\u6587\u5b57\u5316\u3051\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306fExcel\u304c\u300cUTF-8\u3067\u3042\u308b\u3053\u3068\u300d\u3092\u81ea\u52d5\u5224\u5225\u3067\u304d\u305a\u3001Shift-JIS\u524d\u63d0\u3067\u958b\u3044\u3066\u3057\u307e\u3046\u305f\u3081\u306b\u8d77\u304d\u308b\u73fe\u8c61\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">utf-8-sig\uff08BOM\u4ed8\u304dUTF-8\uff09\u3067\u89e3\u6c7a\u3067\u304d\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u3053\u306e\u6587\u5b57\u5316\u3051\u306f\u3001\u66f8\u304d\u8fbc\u307f\u6642\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u3092<code>encoding='utf-8-sig'<\/code>\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u5192\u982d\u306b\u300c\u3053\u308c\u306fUTF-8\u3067\u3059\u300d\u3068\u3044\u3046\u76ee\u5370\uff08BOM\uff09\u304c\u4ed8\u4e0e\u3055\u308c\u3001Excel\u304cUTF-8\u3068\u3057\u3066\u6b63\u3057\u304f\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u300cPython\u3067CSV\u3092\u4f5c\u3063\u3066Excel\u3067\u958b\u304f\u3068\u6587\u5b57\u5316\u3051\u3059\u308b\u300d\u3068\u3044\u3046\u76f8\u8ac7\u306e\u307b\u3068\u3093\u3069\u306f\u3001\u3053\u306e\u8a2d\u5b9a\u3067\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>BOM\uff08Byte Order Mark\uff09<\/strong>\uff1a\u30d5\u30a1\u30a4\u30eb\u306e\u5148\u982d\u306b\u4ed8\u4e0e\u3055\u308c\u308b\u300c\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u3069\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u793a\u3059\u76ee\u5370\u30c7\u30fc\u30bf\u3002<code>utf-8-sig<\/code>\u3067\u4fdd\u5b58\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u4ed8\u4e0e\u3055\u308c\u3001Excel\u306a\u3069\u4e00\u90e8\u306e\u30bd\u30d5\u30c8\u304cUTF-8\u30d5\u30a1\u30a4\u30eb\u3092\u6b63\u3057\u304f\u8a8d\u8b58\u3059\u308b\u305f\u3081\u306b\u5229\u7528\u3057\u307e\u3059\u3002Excel\u306a\u3069\u5bfe\u5fdc\u30bd\u30d5\u30c8\u306e\u8868\u793a\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u304c\u3001Python\u5074\u3067<code>encoding='utf-8'<\/code>\u3068\u3057\u3066\u8aad\u307f\u8fbc\u307f\u76f4\u3059\u3068\u5148\u982d\u5217\u306e\u5024\u306e\u5148\u982d\u306b<code>\\ufeff<\/code>\u304c\u6df7\u5165\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u8aad\u307f\u8fbc\u307f\u6642\u3082\u66f8\u304d\u8fbc\u307f\u6642\u3068\u540c\u3058<code>utf-8-sig<\/code>\u3092\u6307\u5b9a\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-04\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">04<\/span>\n  <span class=\"section-label\" style=\"display:block;\">DICT READER\/WRITER<\/span>\n  <span class=\"section-title\" style=\"display:block;\">CSV\u3092\u8f9e\u66f8\u578b\u3068\u3057\u3066\u6271\u3046DictReader\u30fbDictWriter<\/span>\n  <span class=\"section-desc\">\u5217\u756a\u53f7\u3067\u306f\u306a\u304f\u5217\u540d\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067\u7d39\u4ecb\u3057\u305f<code>csv.reader()<\/code>\u306f\u3001\u5404\u884c\u3092<strong>\u30ea\u30b9\u30c8<\/strong>\uff08<code>['\u5c71\u7530\u592a\u90ce', '32', '\u55b6\u696d\u90e8']<\/code>\uff09\u3068\u3057\u3066\u8fd4\u3059\u305f\u3081\u3001\u300c2\u756a\u76ee\u306e\u8981\u7d20\u304c\u5e74\u9f62\u300d\u3068\u3044\u3046\u3088\u3046\u306b<strong>\u5217\u306e\u9806\u756a<\/strong>\u3092\u899a\u3048\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5217\u306e\u4e26\u3073\u9806\u304c\u5909\u308f\u3063\u305f\u308a\u5217\u304c\u5897\u3048\u305f\u308a\u3059\u308b\u3068\u3001\u30b3\u30fc\u30c9\u304c\u6b63\u3057\u304f\u52d5\u304b\u306a\u304f\u306a\u308b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304c<code>csv.DictReader()<\/code>\u3067\u3059\u3002CSV\u306e1\u884c\u76ee\u3092\u30d8\u30c3\u30c0\u30fc\uff08\u5217\u540d\uff09\u3068\u3057\u3066\u81ea\u52d5\u7684\u306b\u8a8d\u8b58\u3057\u3001\u5404\u884c\u3092<strong>\u8f9e\u66f8\u578b<\/strong>\uff08<code>{'\u6c0f\u540d': '\u5c71\u7530\u592a\u90ce', '\u5e74\u9f62': '32', '\u90e8\u7f72': '\u55b6\u696d\u90e8'}<\/code>\uff09\u3068\u3057\u3066\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u30b3\u30fc\u30c9\u5074\u3067\u306f<code>row['\u6c0f\u540d']<\/code>\u306e\u3088\u3046\u306b<strong>\u5217\u540d\u3092\u6307\u5b9a\u3057\u3066\u30a2\u30af\u30bb\u30b9<\/strong>\u3067\u304d\u308b\u305f\u3081\u3001\u53ef\u8aad\u6027\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u8f9e\u66f8\u578b\uff08dict\uff09\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\uff1aPython\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u4e00\u3064\u3067\u3001\u300c\u30ad\u30fc\u300d\u3068\u300c\u5024\u300d\u306e\u30da\u30a2\u3067\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3059\u308b\u4ed5\u7d44\u307f\u3002Excel\u3067\u3044\u3048\u3070\u300c\u5217\u898b\u51fa\u3057\u300d\u3092\u30ad\u30fc\u3068\u3057\u3066\u5024\u3092\u53d6\u308a\u51fa\u305b\u308b\u30a4\u30e1\u30fc\u30b8\u306b\u8fd1\u304f\u3001<code>row['\u6c0f\u540d']<\/code>\u306e\u3088\u3046\u306b\u540d\u524d\u3067\u30c7\u30fc\u30bf\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u305f\u3081\u3001\u5217\u306e\u4e26\u3073\u9806\u3092\u610f\u8b58\u305b\u305a\u306b\u6e08\u3080\u306e\u304c\u5229\u70b9\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4-1. DictWriter\u3067\u8f9e\u66f8\u306e\u30ea\u30b9\u30c8\u3092\u66f8\u304d\u8fbc\u3080<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f8\u304d\u8fbc\u307f\u5074\u306b\u3082\u5bfe\u306b\u306a\u308b<code>csv.DictWriter()<\/code>\u304c\u3042\u308a\u307e\u3059\u3002\u3042\u3089\u304b\u3058\u3081<code>fieldnames<\/code>\u3068\u3044\u3046\u5f15\u6570\u3067\u5217\u540d\u306e\u4e26\u3073\u9806\u3092\u6307\u5b9a\u3057\u3066\u304a\u304d\u3001<code>writeheader()<\/code>\u3067\u30d8\u30c3\u30c0\u30fc\u884c\u3092\u66f8\u304d\u8fbc\u3093\u3060\u3042\u3068\u3001\u8f9e\u66f8\u578b\u306e\u30c7\u30fc\u30bf\u3092<code>writerow()<\/code>\u3084<code>writerows()<\/code>\u306b\u6e21\u3059\u3068\u3001\u6307\u5b9a\u3057\u305f\u5217\u306e\u4e26\u3073\u3067CSV\u304c\u66f8\u304d\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><code>DictReader<\/code>\uff1a1\u884c\u76ee\u3092\u81ea\u52d5\u3067\u30d8\u30c3\u30c0\u30fc\u3068\u3057\u3066\u8a8d\u8b58\u3057\u3001\u5404\u884c\u3092\u8f9e\u66f8\u578b\u3067\u8fd4\u3059<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><code>DictWriter(f, fieldnames=[...])<\/code>\uff1a\u66f8\u304d\u8fbc\u3080\u5217\u540d\u306e\u9806\u5e8f\u3092\u3042\u3089\u304b\u3058\u3081\u6307\u5b9a\u3059\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><code>writeheader()<\/code>\uff1a\u30d8\u30c3\u30c0\u30fc\u884c\uff08\u5217\u540d\u306e\u884c\uff09\u3092\u66f8\u304d\u8fbc\u3080\u3001\u5fd8\u308c\u308b\u3068\u5217\u540d\u306a\u3057\u306eCSV\u306b\u306a\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u8f9e\u66f8\u306b<code>fieldnames<\/code>\u306b\u306a\u3044\u4f59\u5206\u306a\u30ad\u30fc\u304c\u542b\u307e\u308c\u308b\u3068<code>ValueError<\/code>\u304c\u767a\u751f\u3059\u308b\uff08\u4e0d\u8db3\u3057\u3066\u3044\u308b\u30ad\u30fc\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u305a\u7a7a\u6587\u5b57\u3067\u81ea\u52d5\u88dc\u5b8c\u3055\u308c\u308b\uff09<\/span><\/div>\n\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5b9f\u52d9\u3067\u306f\u3001\u5f8c\u304b\u3089\u5217\u304c\u5897\u3048\u305f\u308a\u4e26\u3073\u9806\u304c\u5909\u308f\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u983b\u7e41\u306b\u3042\u308a\u307e\u3059\u3002\u5217\u756a\u53f7\u3067\u30a2\u30af\u30bb\u30b9\u3059\u308b<code>reader<\/code>\u3088\u308a\u3082\u3001\u5217\u540d\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b<code>DictReader<\/code>\u306e\u65b9\u304c\u3001\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4-2. \u30c7\u30fc\u30bf\u306e\u578b\u5909\u63db\u3092\u5fd8\u308c\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>DictReader<\/code>\u30fb<code>reader<\/code>\u3044\u305a\u308c\u306e\u65b9\u6cd5\u3067\u3082\u3001CSV\u304b\u3089\u8aad\u307f\u8fbc\u3093\u3060\u5024\u306f<strong>\u3059\u3079\u3066\u6587\u5b57\u5217\u578b<\/strong>\u3067\u3059\u3002\u300c\u5e74\u9f62\u300d\u306e\u5217\u3092\u5408\u8a08\u3057\u305f\u3044\u3001\u5e73\u5747\u3092\u51fa\u3057\u305f\u3044\u3068\u3044\u3063\u305f\u6570\u5024\u8a08\u7b97\u3092\u3059\u308b\u5834\u5408\u306f\u3001<code>int(row['\u5e74\u9f62'])<\/code>\u3084<code>float(row['\u91d1\u984d'])<\/code>\u306e\u3088\u3046\u306b\u660e\u793a\u7684\u306b\u578b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u578b\u5909\u63db\u3092\u5fd8\u308c\u308b\u3068\u8d77\u304d\u308b\u30d0\u30b0<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u6587\u5b57\u5217\u306e\u307e\u307e<code>+<\/code>\u3067\u8db3\u3057\u7b97\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u6570\u5024\u306e\u52a0\u7b97\u3067\u306f\u306a\u304f<strong>\u6587\u5b57\u5217\u306e\u9023\u7d50<\/strong>\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\uff08\u4f8b\uff1a<code>'10' + '20'<\/code>\u306f<code>30<\/code>\u3067\u306f\u306a\u304f<code>'1020'<\/code>\uff09\u3002\u96c6\u8a08\u7d50\u679c\u304c\u304a\u304b\u3057\u3044\u3068\u304d\u306f\u3001\u307e\u305a\u578b\u5909\u63db\u3092\u5fd8\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u7591\u3046\u306e\u304c\u5b9a\u77f3\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-05\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">05<\/span>\n  <span class=\"section-label\" style=\"display:block;\">PANDAS OPTION<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u5927\u91cf\u30c7\u30fc\u30bf\u30fb\u8907\u96d1\u306a\u96c6\u8a08\u306b\u306fpandas\u3068\u3044\u3046\u9078\u629e\u80a2<\/span>\n  <span class=\"section-desc\">csv\u30e2\u30b8\u30e5\u30fc\u30eb\u3068pandas\u306e\u4f7f\u3044\u5206\u3051\u306e\u57fa\u6e96<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u306e\u898f\u6a21\u304c\u5927\u304d\u304f\u306a\u3063\u305f\u308a\u3001\u96c6\u8a08\u30fb\u4e26\u3079\u66ff\u3048\u30fb\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u7d50\u5408\u3068\u3044\u3063\u305f\u51e6\u7406\u304c\u8907\u96d1\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u6a19\u6e96\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3060\u3051\u3067\u306f\u66f8\u304f\u30b3\u30fc\u30c9\u306e\u91cf\u304c\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002\u305d\u3053\u3067\u9078\u629e\u80a2\u306b\u5165\u308b\u306e\u304c\u3001\u30c7\u30fc\u30bf\u5206\u6790\u7528\u306e\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea<strong>pandas<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>pandas\uff08\u30d1\u30f3\u30c0\u30b9\uff09<\/strong>\uff1aPython\u3067\u30c7\u30fc\u30bf\u5206\u6790\u30fb\u96c6\u8a08\u3092\u884c\u3046\u305f\u3081\u306e\u4ee3\u8868\u7684\u306a\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3002\u8868\u5f62\u5f0f\u306e\u30c7\u30fc\u30bf\u3092<strong>DataFrame<\/strong>\u3068\u3044\u3046\u5358\u4f4d\u3067\u6271\u3044\u3001CSV\u306e\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u30fb\u4e26\u3079\u66ff\u3048\u30fb\u96c6\u8a08\u30fb\u7d50\u5408\u3068\u3044\u3063\u305f\u51e6\u7406\u3092\u3001\u77ed\u3044\u30b3\u30fc\u30c9\u3067\u5b9f\u884c\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3002<code>pip install pandas<\/code>\u3067\u5c0e\u5165\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">pandas\u3092\u4f7f\u3046\u3068\u3001CSV\u306e\u8aad\u307f\u8fbc\u307f\u306f<code>pd.read_csv('file.csv')<\/code>\u306e\u305f\u3063\u305f1\u884c\u3067\u5b8c\u4e86\u3057\u3001\u66f8\u304d\u8fbc\u307f\u3082<code>df.to_csv('output.csv', index=False, encoding='utf-8-sig')<\/code>\u306e1\u884c\u3067\u6e08\u307f\u307e\u3059\u3002<code>index=False<\/code>\u3092\u6307\u5b9a\u3057\u306a\u3044\u3068\u3001pandas\u5185\u90e8\u306e\u884c\u756a\u53f7\u307e\u3067\u5217\u3068\u3057\u3066\u51fa\u529b\u3055\u308c\u3066\u3057\u307e\u3046\u70b9\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u89b3\u70b9<\/th><th>csv\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u6a19\u6e96\uff09<\/th><th>pandas\uff08\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\uff09<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u5c0e\u5165<\/td><td>\u8ffd\u52a0\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u4e0d\u8981<\/td><td>pip install pandas\u304c\u5fc5\u8981<\/td><\/tr>\n<tr><td>\u5411\u3044\u3066\u3044\u308b\u898f\u6a21<\/td><td>\u6570\u767e\u301c\u6570\u4e07\u884c\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u8aad\u307f\u66f8\u304d<\/td><td>\u6570\u4e07\u884c\u4ee5\u4e0a\u3001\u8907\u96d1\u306a\u96c6\u8a08\u30fb\u7d50\u5408<\/td><\/tr>\n<tr><td>\u96c6\u8a08\u30fb\u4e26\u3079\u66ff\u3048<\/td><td>\u81ea\u5206\u3067\u30eb\u30fc\u30d7\u51e6\u7406\u3092\u66f8\u304f\u5fc5\u8981\u3042\u308a<\/td><td>\u30e1\u30bd\u30c3\u30c91\u301c2\u884c\u3067\u5b8c\u7d50\u3059\u308b\u3053\u3068\u304c\u591a\u3044<\/td><\/tr>\n<tr><td>\u5b66\u7fd2\u30b3\u30b9\u30c8<\/td><td>\u6bd4\u8f03\u7684\u4f4e\u3044\uff08\u69cb\u6587\u304c\u30b7\u30f3\u30d7\u30eb\uff09<\/td><td>DataFrame\u306e\u6982\u5ff5\u306b\u6163\u308c\u304c\u5fc5\u8981<\/td><\/tr>\n<tr><td>\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u7d50\u5408<\/td><td>\u81ea\u5206\u3067\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u3042\u308a<\/td><td>concat\/merge\u7b49\u3067\u7c21\u5358\u306b\u7d50\u5408\u3067\u304d\u308b<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 class=\"wp-block-heading\">5-1. \u3069\u3061\u3089\u3092\u9078\u3076\u3079\u304d\u304b\u306e\u5224\u65ad\u57fa\u6e96<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u5b89\u3068\u3057\u3066\u306f\u3001\u300c\u5358\u7d14\u306bCSV\u3092\u8aad\u3093\u30671\u884c\u305a\u3064\u51e6\u7406\u3059\u308b\u300d\u300c1\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u5225\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u300d\u7a0b\u5ea6\u3067\u3042\u308c\u3070\u6a19\u6e96\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u5341\u5206\u3067\u3059\u3002\u4e00\u65b9\u3001\u300c\u8907\u6570\u306eCSV\u3092\u7d50\u5408\u3057\u305f\u3044\u300d\u300c\u30b0\u30eb\u30fc\u30d7\u3054\u3068\u306b\u5408\u8a08\u30fb\u5e73\u5747\u3092\u51fa\u3057\u305f\u3044\u300d\u300c\u6761\u4ef6\u3067\u7d5e\u308a\u8fbc\u3093\u3067\u304b\u3089\u4e26\u3079\u66ff\u3048\u305f\u3044\u300d\u3068\u3044\u3063\u305f<strong>\u96c6\u8a08\u30fb\u5206\u6790\u5bc4\u308a\u306e\u51e6\u7406<\/strong>\u306b\u306a\u308b\u307b\u3069\u3001pandas\u3092\u4f7f\u3063\u305f\u65b9\u304c\u30b3\u30fc\u30c9\u91cf\u304c\u5927\u5e45\u306b\u5c11\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u8ff7\u3063\u305f\u3089csv\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u59cb\u3081\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">pandas\u306f\u5f37\u529b\u3067\u3059\u304c\u3001DataFrame\u3068\u3044\u3046\u72ec\u81ea\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u6700\u521d\u306e\u30cf\u30fc\u30c9\u30eb\u306f\u3084\u3084\u9ad8\u3081\u3067\u3059\u3002\u300c\u307e\u305a\u306f\u8aad\u307f\u66f8\u304d\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u6bb5\u968e\u3067\u306f<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u59cb\u3081\u3001\u96c6\u8a08\u51e6\u7406\u304c\u8907\u96d1\u306b\u306a\u3063\u3066\u304d\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067pandas\u3078\u79fb\u884c\u3059\u308b\u306e\u304c\u7121\u7406\u306e\u306a\u3044\u5b66\u7fd2\u9806\u5e8f\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:linear-gradient(135deg,#1a1a1a,#2a2015);border-radius:12px;padding:20px 24px;margin:24px 0;display:flex;align-items:center;gap:16px;color:#fff;\">\n  <span style=\"font-size:36px;\">&#127942;<\/span>\n  <div>\n    <div style=\"font-size:13px;color:#f59e0b;font-weight:700;letter-spacing:1px;\">POINT<\/div>\n    <div style=\"font-size:18px;font-weight:800;\">\u72b6\u6cc1\u6b21\u7b2c<\/div>\n    <div style=\"font-size:14px;color:rgba(255,255,255,0.7);margin-top:4px;\">\u5358\u7d14\u306a\u8aad\u307f\u66f8\u304d\u306fcsv\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u96c6\u8a08\u30fb\u7d50\u5408\u304c\u7d61\u3080\u306a\u3089pandas\u3002\u3069\u3061\u3089\u304b\u4e00\u65b9\u304c\u5e38\u306b\u6b63\u89e3\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u306a\u3044\u3002<\/div>\n  <\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-06\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">06<\/span>\n  <span class=\"section-label\" style=\"display:block;\">COMMON PITFALLS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">CSV\u51e6\u7406\u3067\u5b9f\u52d9\u4e0a\u3088\u304f\u3042\u308b\u3064\u307e\u305a\u304d\u30dd\u30a4\u30f3\u30c8<\/span>\n  <span class=\"section-desc\">\u6587\u5b57\u30b3\u30fc\u30c9\u30fb\u6539\u884c\u30fb\u7a7a\u767d\u30bb\u30eb\u30fb\u5927\u91cf\u30c7\u30fc\u30bf\u3078\u306e\u5bfe\u51e6\u6cd5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067\u306e\u69cb\u6587\u306f\u7406\u89e3\u3067\u304d\u3066\u3082\u3001\u5b9f\u969b\u306e\u696d\u52d9\u30c7\u30fc\u30bf\u3092\u76f8\u624b\u306b\u3059\u308b\u3068\u3001\u6559\u79d1\u66f8\u901a\u308a\u306b\u306f\u9032\u307e\u306a\u3044\u30b1\u30fc\u30b9\u304c\u983b\u767a\u3057\u307e\u3059\u3002\u3053\u306e\u7ae0\u3067\u306f\u3001\u73fe\u5834\u3067\u3088\u304f\u76f8\u8ac7\u3055\u308c\u308b4\u3064\u306e\u3064\u307e\u305a\u304d\u30dd\u30a4\u30f3\u30c8\u3092\u307e\u3068\u3081\u3066\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6-1. \u30ab\u30f3\u30de\u3092\u542b\u3080\u30c7\u30fc\u30bf\u3067\u306e\u5217\u30ba\u30ec<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u306f\u30ab\u30f3\u30de\u3067\u5217\u3092\u533a\u5207\u308b\u4ed5\u7d44\u307f\u306e\u305f\u3081\u3001\u4f4f\u6240\u3084\u5546\u54c1\u540d\u306a\u3069<strong>\u30c7\u30fc\u30bf\u81ea\u4f53\u306b\u30ab\u30f3\u30de\u304c\u542b\u307e\u308c\u308b<\/strong>\u5834\u5408\u3001\u305d\u306e\u307e\u307e\u3067\u306f\u5217\u304c\u30ba\u30ec\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u907f\u3051\u308b\u305f\u3081\u3001CSV\u306e\u4ed5\u69d8\u3067\u306f\u8a72\u5f53\u30bb\u30eb\u306e\u5024\u3092\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\uff08<code>\"<\/code>\uff09\u3067\u56f2\u3080\u30eb\u30fc\u30eb\u306b\u306a\u3063\u3066\u304a\u308a\u3001<code>csv.reader()<\/code>\u3084<code>csv.writer()<\/code>\u306f\u3053\u306e\u30af\u30a9\u30fc\u30c8\u51e6\u7406\u3092\u81ea\u52d5\u7684\u306b\u884c\u3063\u3066\u304f\u308c\u307e\u3059\u3002\u81ea\u4f5c\u3067\u30ab\u30f3\u30de\u5206\u5272\uff08<code>split(',')<\/code>\uff09\u3059\u308b\u3068\u3053\u306e\u51e6\u7406\u304c\u629c\u3051\u843d\u3061\u3001\u5217\u30ba\u30ec\u306e\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u81ea\u5df1\u6d41\u306esplit(',')\u306f\u907f\u3051\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u300cCSV\u306a\u3089<code>line.split(',')<\/code>\u3067\u5341\u5206\u3067\u306f\u300d\u3068\u8003\u3048\u304c\u3061\u3067\u3059\u304c\u3001\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u307e\u308c\u305f\u30ab\u30f3\u30de\u5165\u308a\u30c7\u30fc\u30bf\u3084\u30bb\u30eb\u5185\u6539\u884c\u306b\u5bfe\u5fdc\u3067\u304d\u305a\u3001\u30c7\u30fc\u30bf\u304c\u5d29\u308c\u308b\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002CSV\u306e\u8aad\u307f\u66f8\u304d\u306f\u3001\u5fc5\u305a<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u307e\u305f\u306fpandas\uff09\u3092\u7d4c\u7531\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">6-2. \u7a7a\u767d\u884c\u30fb\u6b20\u640d\u5024\u306e\u6271\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u969b\u306eCSV\u306b\u306f\u3001\u5024\u304c\u5165\u3063\u3066\u3044\u306a\u3044\u7a7a\u6b04\u306e\u30bb\u30eb\u3084\u3001\u672b\u5c3e\u306b\u7d1b\u308c\u8fbc\u3093\u3060\u7a7a\u884c\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u73cd\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002<code>DictReader<\/code>\u3067\u8aad\u307f\u8fbc\u3093\u3060\u5834\u5408\u3001\u7a7a\u6b04\u306e\u30bb\u30eb\u306f\u7a7a\u6587\u5b57\u5217<code>''<\/code>\u3068\u3057\u3066\u8fd4\u308b\u305f\u3081\u3001\u96c6\u8a08\u524d\u306b<code>if row['\u91d1\u984d']:<\/code>\u306e\u3088\u3046\u306a\u5f62\u3067\u7a7a\u6b04\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u3066\u304a\u304f\u3068\u3001\u578b\u5909\u63db\u30a8\u30e9\u30fc\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u6b20\u640d\u5024<\/strong>\uff1a\u672c\u6765\u5165\u3063\u3066\u3044\u308b\u306f\u305a\u306e\u30c7\u30fc\u30bf\u304c\u7a7a\u306b\u306a\u3063\u3066\u3044\u308b\u72b6\u614b\u3002\u96c6\u8a08\u51e6\u7406\u3067\u305d\u306e\u307e\u307e\u6570\u5024\u5909\u63db\u3057\u3088\u3046\u3068\u3059\u308b\u3068<code>ValueError<\/code>\u3067\u51e6\u7406\u304c\u6b62\u307e\u308b\u539f\u56e0\u306b\u306a\u308b\u305f\u3081\u3001\u4e8b\u524d\u306b\u7a7a\u6b04\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3001\u3042\u308b\u3044\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3044\u3063\u305f\u5bfe\u5fdc\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">6-3. \u6539\u884c\u30b3\u30fc\u30c9\u306e\u9055\u3044\uff08Windows\/Mac\/Linux\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u884c\u306e\u8868\u73fe\u65b9\u6cd5\u306fOS\u306b\u3088\u3063\u3066\u5fae\u5999\u306b\u7570\u306a\u308a\uff08Windows\u306f<code>\\r\\n<\/code>\u3001Mac\/Linux\u306f<code>\\n<\/code>\uff09\u3001\u3053\u306e\u5dee\u7570\u304c\u5f71\u97ff\u3059\u308b\u5178\u578b\u4f8b\u304c\u66f8\u304d\u8fbc\u307f\u6642\u3067\u3059\u3002Windows\u74b0\u5883\u3067<code>newline=''<\/code>\u3092\u6307\u5b9a\u305b\u305a\u306bCSV\u3092\u66f8\u304d\u8fbc\u3080\u3068\u3001\u66f8\u304d\u8fbc\u3093\u3060\u884c\u306e\u9593\u306b\u7a7a\u884c\u304c1\u884c\u304a\u304d\u306b\u5165\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u524d\u8ff0\u306e\u901a\u308a\u3001<code>open()<\/code>\u6642\u306b<code>newline=''<\/code>\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092csv\u30e2\u30b8\u30e5\u30fc\u30eb\u5074\u306b\u4e00\u4efb\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6-4. \u5927\u91cf\u30c7\u30fc\u30bf\u3092\u6271\u3046\u3068\u304d\u306e\u30e1\u30e2\u30ea\u3068\u51e6\u7406\u6642\u9593<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u5341\u4e07\u884c\u3092\u8d85\u3048\u308b\u898f\u6a21\u306b\u306a\u308b\u3068\u3001\u51e6\u7406\u5168\u4f53\u3092\u30e1\u30e2\u30ea\u306b\u4e57\u305b\u308b\u66f8\u304d\u65b9\uff08\u4f8b\u3048\u3070\u5168\u884c\u3092\u4e00\u5ea6\u306b<code>list()<\/code>\u5316\u3059\u308b\u51e6\u7406\uff09\u306f\u907f\u3051\u3001<code>for row in reader:<\/code>\u306e\u3088\u3046\u306b1\u884c\u305a\u3064\u51e6\u7406\u3057\u3066\u3044\u304f\u8a2d\u8a08\u304c\u5b89\u5168\u3067\u3059\u3002\u96c6\u8a08\u51e6\u7406\u304c\u8907\u96d1\u306a\u5834\u5408\u306f\u3001\u524d\u7ae0\u306epandas\u306b\u4efb\u305b\u305f\u65b9\u304c\u30b3\u30fc\u30c9\u3082\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u3001\u51e6\u7406\u901f\u5ea6\u306e\u9762\u3067\u3082\u6709\u5229\u306b\u306a\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>Step 1<\/strong><br><span style=\"font-size:12px;\">encoding\/newline\u3092<br>\u6307\u5b9a\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 2<\/strong><br><span style=\"font-size:12px;\">DictReader\u3067<br>1\u884c\u305a\u3064\u8aad\u307f\u8fbc\u3080<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 3<\/strong><br><span style=\"font-size:12px;\">\u578b\u5909\u63db\u30fb\u6b20\u640d\u5024<br>\u30c1\u30a7\u30c3\u30af\u3092\u304b\u3051\u308b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 4<\/strong><br><span style=\"font-size:12px;\">\u96c6\u8a08 or \u52a0\u5de5\u5f8c\u3001<br>utf-8-sig\u3067\u66f8\u304d\u51fa\u3059<\/span><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e4\u30b9\u30c6\u30c3\u30d7\u3092\u578b\u3068\u3057\u3066\u62bc\u3055\u3048\u3066\u304a\u3051\u3070\u3001CSV\u3092\u8d77\u70b9\u3068\u3059\u308b\u696d\u52d9\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u5927\u534a\u306f\u30ab\u30d0\u30fc\u3067\u304d\u307e\u3059\u3002\u6b21\u7ae0\u304b\u3089\u306f\u3001\u3053\u306e\u51e6\u7406\u91cf\u304c\u7a4d\u307f\u91cd\u306a\u3063\u305f\u3068\u304d\u306b\u5b9f\u969b\u306b\u3069\u308c\u3060\u3051\u306e\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u304b\u3001\u5f0a\u793e\u306e\u5b9f\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3060\u3051\u3067\u3082\u3001Excel\u95a2\u6570\u3067\u529b\u6280\u96c6\u8a08\u3057\u3066\u3044\u305f\u4f5c\u696d\u306e\u304b\u306a\u308a\u306e\u90e8\u5206\u3092Python\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u3002\u305f\u3060\u300c\u6bce\u56de\u3053\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u81ea\u5206\u3067\u66f8\u304f\u306e\u306f\u9762\u5012\u300d\u3068\u611f\u3058\u305f\u3089\u3001\u5f8c\u534a\u3067\u7d39\u4ecb\u3059\u308bAI\u306b\u4efb\u305b\u308b\u9078\u629e\u80a2\u3092\u691c\u8a0e\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-07\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">07<\/span>\n  <span class=\"section-label\" style=\"display:block;\">GENAI CASE DATA<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u30c7\u30fc\u30bf\u3011GENAI\u793e\u5185\u306e\u30c7\u30fc\u30bf\u96c6\u8a08\u696d\u52d9\u306e\u5b9f\u614b<\/span>\n  <span class=\"section-desc\">CSV\u3092\u8d77\u70b9\u3068\u3059\u308b\u696d\u52d9\u304c\u3001\u5b9f\u969b\u3069\u308c\u3060\u3051\u6642\u9593\u3092\u98df\u3063\u3066\u3044\u308b\u304b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u304b\u3089\u306f\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u306e\u5b9f\u904b\u7528\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u3001CSV\u3092\u8d77\u70b9\u3068\u3059\u308b\u30c7\u30fc\u30bf\u96c6\u8a08\u30fb\u52a0\u5de5\u696d\u52d9\u304c\u3001\u5b9f\u52d9\u3067\u3069\u308c\u3060\u3051\u306e\u5de5\u6570\u3092\u5360\u3081\u3066\u3044\u308b\u304b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u5f0a\u793e\u3067\u306fClaude Max 20x\u30d7\u30e9\u30f3\uff08\u6708\u984d$200\u30fb\u7d0430,000\u5186\uff09\u3092\u5168\u793e\u5951\u7d04\u3057\u3001\u7d4c\u55b6\u30fb\u55b6\u696d\u30fb\u5e83\u544a\u30fb\u7d4c\u7406\u30fb\u79d8\u66f8\u696d\u52d9\u307e\u3067Claude Code\u3092\u7d61\u3081\u3066\u904b\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u9805\u76ee<\/th><th>\u5185\u5bb9<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u5951\u7d04\u30d7\u30e9\u30f3<\/td><td>Claude Max 20x\uff08\u6708\u984d$200 \/ \u7d0430,000\u5186\uff09<\/td><\/tr>\n<tr><td>\u5229\u7528\u958b\u59cb<\/td><td>2025\u5e74\u5f8c\u534a\u301c<\/td><\/tr>\n<tr><td>CSV\/\u30c7\u30fc\u30bf\u96c6\u8a08\u304c\u95a2\u308f\u308b\u696d\u52d9<\/td><td>\u5e83\u544a\u30ec\u30dd\u30fc\u30c8\u96c6\u8a08\u3001\u7d4c\u7406\u306e\u8acb\u6c42\u66f8\u30fb\u7d4c\u8cbb\u4ed5\u8a33\u3001\u55b6\u696d\u30ea\u30b9\u30c8\u306e\u6574\u5f62<\/td><\/tr>\n<tr><td>\u4e3b\u306a\u5229\u7528\u30e2\u30c7\u30eb<\/td><td>Sonnet\u7cfb\uff08\u65e5\u5e38\u696d\u52d9\uff09\uff0fOpus\u7cfb\uff08\u8907\u96d1\u306a\u96c6\u8a08\u30fb\u5224\u65ad\u304c\u5fc5\u8981\u306a\u5834\u9762\uff09<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3068\u3082\u3068\u3053\u308c\u3089\u306e\u696d\u52d9\u306f\u3001\u62c5\u5f53\u8005\u304cCSV\u3092Excel\u3067\u958b\u304d\u3001\u30d5\u30a3\u30eb\u30bf\u3084\u95a2\u6570\u3092\u7d44\u3093\u3067\u624b\u4f5c\u696d\u3067\u96c6\u8a08\u3059\u308b\u5f62\u3067\u56de\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u4ef6\u6570\u304c\u5c11\u306a\u3044\u3046\u3061\u306f\u554f\u984c\u306b\u306a\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001\u6271\u3046\u30c7\u30fc\u30bf\u91cf\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3001\u300c\u6bce\u9031\u540c\u3058\u4f5c\u696d\u3092\u7e70\u308a\u8fd4\u3059\u5272\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u300d\u3068\u3044\u3046\u8ab2\u984c\u304c\u9855\u5728\u5316\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u696d\u52d9\u9818\u57df<\/th><th>\u4e3b\u306a\u7528\u9014\uff08CSV\/\u30c7\u30fc\u30bf\u51e6\u7406\u304c\u95a2\u308f\u308b\u90e8\u5206\uff09<\/th><th>\u6982\u7b97\u524a\u6e1b\u6642\u9593<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u5e83\u544a\u904b\u7528<\/td><td>\u8907\u6570\u5a92\u4f53\u306eCSV\u30ec\u30dd\u30fc\u30c8\u3092\u7d50\u5408\u3057\u9031\u6b21\u3067\u5206\u6790<\/td><td>\u903110\u6642\u9593 \u2192 \u90311\u6642\u9593<\/td><\/tr>\n<tr><td>\u7d4c\u7406<\/td><td>\u8acb\u6c42\u66f8CSV\u30fb\u7d4c\u8cbb\u30c7\u30fc\u30bf\u306e\u4ed5\u8a33\u3001Freee\u9023\u643a\u7528\u306e\u6574\u5f62<\/td><td>\u670840\u6642\u9593 \u2192 \u67085\u6642\u9593<\/td><\/tr>\n<tr><td>\u55b6\u696d<\/td><td>\u540d\u523a\u30fb\u554f\u3044\u5408\u308f\u305bCSV\u3092\u55b6\u696d\u30ea\u30b9\u30c8\u5f62\u5f0f\u306b\u6574\u5f62<\/td><td>\u903120\u6642\u9593 \u2192 \u90312\u6642\u9593<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u6570\u5024\u306e\u6ce8\u610f\u66f8\u304d<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u4e0a\u8a18\u306f\u5f0a\u793e\u306e\u808c\u611f\u30d9\u30fc\u30b9\u306e\u6982\u7b97\u5024\u3067\u3042\u308a\u3001\u696d\u7a2e\u30fb\u696d\u614b\u30fb\u62c5\u5f53\u8005\u306e\u30b9\u30ad\u30eb\u306b\u3088\u3063\u3066\u524a\u6e1b\u6642\u9593\u306f\u5909\u52d5\u3057\u307e\u3059\u3002\u300cCSV\u3092\u8d77\u70b9\u3068\u3059\u308b\u30c7\u30fc\u30bf\u51e6\u7406\u3092AI\u306b\u4efb\u305b\u308b\u3068\u3001\u3069\u306e\u7a0b\u5ea6\u307e\u3067\u5de5\u6570\u3092\u5727\u7e2e\u3067\u304d\u308b\u304b\u300d\u306e\u53c2\u8003\u60c5\u5831\u3068\u3057\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u4ee5\u524d\u306f\u5e83\u544a\u5a92\u4f53\u3054\u3068\u306b\u30d0\u30e9\u30d0\u30e9\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306eCSV\u3092\u3001\u62c5\u5f53\u8005\u304c\u624b\u4f5c\u696d\u30671\u3064\u306e\u8868\u306b\u7d71\u5408\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u4eca\u306fClaude Code\u306b\u300c\u3053\u306eCSV3\u3064\u3092\u5a92\u4f53\u540d\u306e\u5217\u3092\u4ed8\u3051\u3066\u7d50\u5408\u3057\u3066\u300d\u3068\u4f1d\u3048\u308b\u3060\u3051\u3067\u3001\u6570\u5206\u3067\u540c\u3058\u7d50\u679c\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">7-1. \u300c\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u300d\u304b\u3089\u300c\u6307\u793a\u3059\u308b\u300d\u3078\u306e\u5909\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f0a\u793e\u306e\u5b9f\u611f\u3068\u3057\u3066\u3001CSV\u51e6\u7406\u305d\u306e\u3082\u306e\u306e\u96e3\u6613\u5ea6\u304c\u4e0b\u304c\u3063\u305f\u3068\u3044\u3046\u3088\u308a\u3082\u3001<strong>\u300c\u6bce\u56de\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u300d\u3068\u3044\u3046\u5de5\u7a0b\u304c\u300c\u65e5\u672c\u8a9e\u3067\u6307\u793a\u3059\u308b\u300d\u306b\u7f6e\u304d\u63db\u308f\u3063\u305f<\/strong>\u3068\u3044\u3046\u5909\u5316\u304c\u5927\u304d\u3044\u3068\u611f\u3058\u3066\u3044\u307e\u3059\u3002\u62c5\u5f53\u8005\u304cPython\u306e\u30b3\u30fc\u30c9\u3092\u899a\u3048\u3066\u3044\u306a\u304f\u3066\u3082\u3001\u300c\u3053\u306eCSV\u3092\u90e8\u7f72\u5225\u306b\u96c6\u8a08\u3057\u3066\u300d\u3068\u4f1d\u3048\u308c\u3070\u3001Claude Code\u304c\u9069\u5207\u306a\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u7acb\u3066\u3066\u5b9f\u884c\u3057\u3001\u7d50\u679c\u3060\u3051\u3092\u8fd4\u3057\u3066\u304f\u308c\u308b\u6d41\u308c\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3061\u308d\u3093\u3001\u51fa\u3066\u304d\u305f\u7d50\u679c\u3092\u4eba\u9593\u304c\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5de5\u7a0b\u306f\u6b8b\u308a\u307e\u3059\u3002\u300c\u5b8c\u5168\u306b\u81ea\u52d5\u5316\u3055\u308c\u3066\u30bc\u30ed\u306b\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u3088\u308a\u306f\u3001<strong>\u30c1\u30a7\u30c3\u30af\u30fb\u5fae\u8abf\u6574\u3060\u3051\u304c\u4eba\u9593\u306e\u4ed5\u4e8b\u3068\u3057\u3066\u6b8b\u308b\u5f62\u306b\u696d\u52d9\u304c\u518d\u8a2d\u8a08\u3055\u308c\u305f<\/strong>\u3068\u3044\u3046\u8868\u73fe\u306e\u65b9\u304c\u5b9f\u614b\u306b\u8fd1\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-08\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">08<\/span>\n  <span class=\"section-label\" style=\"display:block;\">OVERCOMING BARRIERS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u3011\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304cCSV\u81ea\u52d5\u5316\u3092\u5c0e\u5165\u3059\u308b\u3068\u304d\u306e3\u3064\u306e\u58c1<\/span>\n  <span class=\"section-desc\">\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u305a\u306bCSV\u51e6\u7406\u3092\u81ea\u52d5\u5316\u3059\u308b\u307e\u3067\u306e\u73fe\u5b9f\u7684\u306a\u30eb\u30fc\u30c8<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067\u8aad\u3093\u3067\u300cPython\u306e\u30b3\u30fc\u30c9\u3092\u899a\u3048\u308b\u306e\u306f\u5927\u5909\u305d\u3046\u300d\u3068\u611f\u3058\u305f\u65b9\u3082\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u5b9f\u969b\u3001\u5f0a\u793e\u306e\u5c0e\u5165\u652f\u63f4\u3067\u3082\u3001\u3053\u306e\u8a18\u4e8b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u89e3\u8aac\u3092\u8aad\u3093\u3067\u4e00\u5ea6\u306f\u6311\u6226\u3057\u305f\u3082\u306e\u306e\u3001\u9014\u4e2d\u3067\u3064\u307e\u305a\u3044\u3066\u632b\u6298\u3057\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3092\u6570\u591a\u304f\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306f\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304cCSV\u51e6\u7406\u306e\u81ea\u52d5\u5316\u306b\u305f\u3069\u308a\u7740\u304f\u307e\u3067\u306b\u8d8a\u3048\u308b<strong>3\u3064\u306e\u58c1<\/strong>\u3068\u3001\u305d\u308c\u305e\u308c\u306e\u8d8a\u3048\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8-1. \u3010\u58c11\u3011\u74b0\u5883\u69cb\u7bc9\u3067\u3064\u307e\u305a\u304f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u521d\u306e\u58c1\u306f\u300cPython\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u300d\u300cpandas\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u300d\u300c\u5b9f\u884c\u65b9\u6cd5\u306e\u7406\u89e3\u300d\u3068\u3044\u3063\u305f<strong>\u74b0\u5883\u69cb\u7bc9<\/strong>\u3067\u3059\u3002\u30b3\u30fc\u30c9\u81ea\u4f53\u306f\u6570\u884c\u3067\u3082\u3001\u305d\u308c\u3092\u52d5\u304b\u3059\u74b0\u5883\u3092\u6574\u3048\u308b\u5de5\u7a0b\u3067\u632b\u6298\u3057\u3066\u3057\u307e\u3046\u4eba\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">Claude Code\u306a\u3089\u74b0\u5883\u69cb\u7bc9\u3054\u3068\u5f15\u304d\u53d7\u3051\u3089\u308c\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">Claude Code\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u6e21\u3057\u3066\u300c\u3053\u306eCSV\u3092\u96c6\u8a08\u3057\u3066\u300d\u3068\u4f9d\u983c\u3059\u308b\u3068\u3001\u5fc5\u8981\u306a\u51e6\u7406\u3092\u7d44\u307f\u7acb\u3066\u3066\u5b9f\u884c\u307e\u3067\u3092\u5f15\u304d\u53d7\u3051\u3066\u304f\u308c\u307e\u3059\u3002\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7acb\u5834\u3067\u306f\u3001Python\u306e\u5b9f\u884c\u74b0\u5883\u3092\u81ea\u5206\u3067\u69cb\u7bc9\u3059\u308b\u5fc5\u8981\u305d\u306e\u3082\u306e\u3092\u30b9\u30ad\u30c3\u30d7\u3067\u304d\u308b\u306e\u304c\u5b9f\u52d9\u4e0a\u306e\u5927\u304d\u306a\u9055\u3044\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">8-2. \u3010\u58c12\u3011\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8aad\u3081\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3064\u76ee\u306e\u58c1\u306f\u3001\u5b9f\u884c\u6642\u306b\u51fa\u308b<code>UnicodeDecodeError<\/code>\u3084<code>ValueError<\/code>\u3068\u3044\u3063\u305f<strong>\u82f1\u8a9e\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/strong>\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306a\u6587\u5b57\u30b3\u30fc\u30c9\u3084\u578b\u5909\u63db\u306e\u30a8\u30e9\u30fc\u3082\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3067\u304d\u305a\u306b\u6642\u9593\u3092\u6d6a\u8cbb\u3057\u3066\u3057\u307e\u3046\u5178\u578b\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u52d5\u304b\u306a\u3044\u300d\u3067\u7d42\u308f\u3089\u305b\u305a\u3001\u307e\u305a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u5168\u6587\u3092\u8aad\u3080\uff08\u539f\u56e0\u306e\u624b\u304c\u304b\u308a\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300cUnicodeDecodeError\u300d\u306f\u6587\u5b57\u30b3\u30fc\u30c9\u6307\u5b9a\u306e\u30df\u30b9\u30de\u30c3\u30c1\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300cValueError\u300d\u306f\u6587\u5b57\u5217\u3068\u6570\u5024\u306e\u578b\u5909\u63db\u30df\u30b9\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>AI\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u305d\u306e\u307e\u307e\u8cbc\u3063\u3066\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3092\u805e\u304f\u306e\u3082\u6709\u52b9\u306a\u624b\u6bb5<\/span><\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">8-3. \u3010\u58c13\u3011\u305d\u3082\u305d\u3082\u300c\u4f55\u3092\u3057\u305f\u3044\u304b\u300d\u3092\u8a00\u8a9e\u5316\u3067\u304d\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3064\u76ee\u306e\u58c1\u306f\u3001\u5b9f\u306f\u6280\u8853\u7684\u306a\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c\u3053\u306eCSV\u3092\u3069\u3046\u52a0\u5de5\u3057\u305f\u3044\u306e\u304b\u300d\u3092<strong>\u81ea\u5206\u306e\u8a00\u8449\u3067\u660e\u78ba\u306b\u3067\u304d\u3066\u3044\u306a\u3044<\/strong>\u30b1\u30fc\u30b9\u3067\u3059\u3002\u3053\u3053\u304c\u66d6\u6627\u306a\u307e\u307e\u3060\u3068\u3001\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u5834\u5408\u3082AI\u306b\u6307\u793a\u3059\u308b\u5834\u5408\u3082\u3001\u601d\u3063\u305f\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>\u307e\u305a\u7d19\u306b\u66f8\u304f<\/strong><br><span style=\"font-size:12px;\">\u3069\u306e\u5217\u3092\u3001\u3069\u3046<br>\u96c6\u8a08\u3057\u305f\u3044\u304b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u5143\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d<\/strong><br><span style=\"font-size:12px;\">\u5217\u540d\u30fb\u6b20\u640d\u30fb<br>\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u898b\u308b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u4f9d\u983c or \u30b3\u30fc\u30c9\u5316<\/strong><br><span style=\"font-size:12px;\">Claude Code\u306b\u6307\u793a<br>or \u81ea\u5206\u3067\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u7d50\u679c\u3092\u691c\u7b97<\/strong><br><span style=\"font-size:12px;\">\u4ef6\u6570\u30fb\u5408\u8a08\u304c<br>\u5143\u30c7\u30fc\u30bf\u3068\u5408\u3046\u304b\u78ba\u8a8d<\/span><\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300cCSV\u3092\u96c6\u8a08\u3057\u3066\u300d\u3060\u3051\u3067\u306f\u66d6\u6627\u3067\u3059\u3002\u300c\u90e8\u7f72\u3054\u3068\u306b\u91d1\u984d\u3092\u5408\u8a08\u3057\u3066\u3001\u591a\u3044\u9806\u306b\u4e26\u3079\u3066\u300d\u3068\u3044\u3046\u3088\u3046\u306b\u3001<strong>\u76ee\u7684\u3068\u30b4\u30fc\u30eb\u306e\u5f62<\/strong>\u3092\u5177\u4f53\u7684\u306b\u8a00\u8a9e\u5316\u3067\u304d\u308c\u3070\u3001\u81ea\u5206\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u5834\u5408\u3082AI\u306b\u4efb\u305b\u308b\u5834\u5408\u3082\u3001\u683c\u6bb5\u306b\u30b9\u30e0\u30fc\u30ba\u306b\u9032\u307f\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-09\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">09<\/span>\n  <span class=\"section-label\" style=\"display:block;\">DECISION GUIDE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u81ea\u5206\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u304b\u3001Claude Code\u306b\u4efb\u305b\u308b\u304b\u306e\u5224\u65ad\u57fa\u6e96<\/span>\n  <span class=\"section-desc\">\u300c\u5b66\u3076\u4fa1\u5024\u304c\u3042\u308b\u5834\u9762\u300d\u3068\u300c\u4efb\u305b\u305f\u65b9\u304c\u65e9\u3044\u5834\u9762\u300d\u3092\u5207\u308a\u5206\u3051\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001\u3053\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305fCSV\u51e6\u7406\u3092\u300c\u81ea\u5206\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u7fd2\u5f97\u3059\u308b\u300d\u3079\u304d\u304b\u3001\u300cClaude Code\u306e\u3088\u3046\u306aAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u4efb\u305b\u308b\u300d\u3079\u304d\u304b\u306e\u5224\u65ad\u8ef8\u3092\u6574\u7406\u3057\u307e\u3059\u3002\u3069\u3061\u3089\u304c\u7d76\u5bfe\u7684\u306b\u6b63\u3057\u3044\u3068\u3044\u3046\u3082\u306e\u3067\u306f\u306a\u304f\u3001<strong>\u76ee\u7684\u3068\u983b\u5ea6<\/strong>\u306b\u3088\u3063\u3066\u6700\u9069\u89e3\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u72b6\u6cc1<\/th><th>\u304a\u3059\u3059\u3081<\/th><th>\u7406\u7531<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u30a8\u30f3\u30b8\u30cb\u30a2\u8077\u3067\u3001\u696d\u52d9\u306e\u4e2d\u6838\u3067Python\u3092\u4f7f\u3046<\/td><td>\u81ea\u5206\u3067\u5b66\u3076<\/td><td>\u9577\u671f\u7684\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u30b9\u30ad\u30eb\u305d\u306e\u3082\u306e\u304c\u8cc7\u7523\u306b\u306a\u308b<\/td><\/tr>\n<tr><td>\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3001CSV\u51e6\u7406\u306f\u67081\u301c2\u56de\u7a0b\u5ea6<\/td><td>Claude Code\u306b\u4efb\u305b\u308b<\/td><td>\u5b66\u7fd2\u30b3\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u767a\u751f\u983b\u5ea6\u304c\u898b\u5408\u308f\u306a\u3044<\/td><\/tr>\n<tr><td>\u7d4c\u55b6\u8005\u30fb\u7ba1\u7406\u8077\u3067\u3001\u8907\u6570\u696d\u52d9\u3092\u4e26\u884c\u3057\u3066\u56de\u3057\u3066\u3044\u308b<\/td><td>Claude Code\u306b\u4efb\u305b\u308b<\/td><td>\u81ea\u5206\u306e\u6642\u9593\u306f\u5224\u65ad\u30fb\u610f\u601d\u6c7a\u5b9a\u306b\u4f7f\u3046\u65b9\u304c\u6295\u8cc7\u5bfe\u52b9\u7387\u304c\u9ad8\u3044<\/td><\/tr>\n<tr><td>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u305d\u306e\u3082\u306e\u306b\u8208\u5473\u304c\u3042\u308a\u3001\u8da3\u5473\u3068\u3057\u3066\u5b66\u3073\u305f\u3044<\/td><td>\u81ea\u5206\u3067\u5b66\u3076<\/td><td>CSV\u51e6\u7406\u306fPython\u5165\u9580\u3068\u3057\u3066\u96e3\u6613\u5ea6\u30fb\u5b9f\u7528\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u826f\u3044\u6559\u6750<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 class=\"wp-block-heading\">9-1. \u300c1\u56de\u304d\u308a\u306e\u51e6\u7406\u300d\u306a\u3089\u306a\u304a\u3055\u3089\u4efb\u305b\u305f\u65b9\u304c\u65e9\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u4eca\u56de\u9650\u308a\u306e\u30c7\u30fc\u30bf\u6574\u7406\u300d\u306e\u3088\u3046\u306b<strong>\u518d\u5229\u7528\u3057\u306a\u3044\u4e00\u5ea6\u304d\u308a\u306e\u51e6\u7406<\/strong>\u3067\u3042\u308c\u3070\u3001\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u3092\u8abf\u3079\u306a\u304c\u3089\u81ea\u5206\u3067\u66f8\u304f\u3088\u308a\u3082\u3001Claude Code\u306b\u5143\u30c7\u30fc\u30bf\u3092\u6e21\u3057\u3066\u300c\u3053\u306e\u5f62\u5f0f\u306b\u5909\u63db\u3057\u3066\u300d\u3068\u4f9d\u983c\u3057\u305f\u65b9\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u306f\u65e9\u304f\u6b63\u78ba\u306a\u7d50\u679c\u306b\u305f\u3069\u308a\u7740\u3051\u307e\u3059\u3002\u7d99\u7d9a\u7684\u306b\u4f7f\u3046\u30b9\u30ad\u30eb\u3068\u3057\u3066\u7fd2\u5f97\u3057\u305f\u3044\u306e\u304b\u3001\u76ee\u306e\u524d\u306e\u30bf\u30b9\u30af\u3092\u7247\u4ed8\u3051\u305f\u3044\u3060\u3051\u306a\u306e\u304b\u3092\u3001\u6700\u521d\u306b\u5207\u308a\u5206\u3051\u3066\u304a\u304f\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8<\/strong>\uff1a\u4eba\u9593\u304c\u7d30\u304b\u304f\u624b\u9806\u3092\u6307\u793a\u3057\u306a\u304f\u3066\u3082\u3001\u76ee\u7684\u3092\u4f1d\u3048\u308b\u3060\u3051\u3067\u81ea\u3089\u8a08\u753b\u3092\u7acb\u3066\u3066\u8907\u6570\u306e\u4f5c\u696d\u30b9\u30c6\u30c3\u30d7\u3092\u5b9f\u884c\u3059\u308bAI\u3002Claude Code\u306f\u3001CSV\u306e\u8aad\u307f\u8fbc\u307f\u30fb\u96c6\u8a08\u30b3\u30fc\u30c9\u306e\u4f5c\u6210\u30fb\u5b9f\u884c\u30fb\u7d50\u679c\u78ba\u8a8d\u307e\u3067\u3092\u4e00\u9023\u306e\u6d41\u308c\u3068\u3057\u3066\u81ea\u5f8b\u7684\u306b\u3053\u306a\u305b\u308b\u305f\u3081\u3001\u300c\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u300d\u3068\u3044\u3046\u5de5\u7a0b\u81ea\u4f53\u3092\u30e6\u30fc\u30b6\u30fc\u306e\u624b\u304b\u3089\u5207\u308a\u96e2\u305b\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">9-2. \u30b3\u30fc\u30c9\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u3068\u3001\u4efb\u305b\u305f\u7d50\u679c\u3082\u30c1\u30a7\u30c3\u30af\u3057\u3084\u3059\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3067\u3001\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306a<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u57fa\u672c\u3084\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u30fb\u578b\u5909\u63db\u3068\u3044\u3063\u305f\u843d\u3068\u3057\u7a74\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u3001Claude Code\u304c\u51fa\u3057\u3066\u304d\u305f\u7d50\u679c\u306b\u5bfe\u3057\u3066\u300c\u3053\u306e\u51e6\u7406\u3067\u672c\u5f53\u306b\u5408\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u81ea\u5206\u306e\u8a00\u8449\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<strong>\u5168\u3066\u3092\u81ea\u5206\u3067\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u306f\u306a\u304f\u3066\u3082\u3001\u4ed5\u7d44\u307f\u306e\u6982\u8981\u3092\u77e5\u3063\u3066\u304a\u304f\u3053\u3068\u306b\u306f\u5b9f\u52d9\u7684\u306a\u4fa1\u5024\u304c\u3042\u308b<\/strong>\u3001\u3068\u3044\u3046\u306e\u304c\u3053\u306e\u8a18\u4e8b\u5168\u4f53\u3092\u901a\u3057\u3066\u306e\u7d50\u8ad6\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u4f75\u7528\u304c\u73fe\u5b9f\u7684\u306a\u7740\u5730\u70b9<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u300c\u57fa\u672c\u306e\u4ed5\u7d44\u307f\u306f\u7406\u89e3\u3057\u3066\u304a\u304d\u3001\u5b9f\u969b\u306e\u53cd\u5fa9\u4f5c\u696d\u306fAI\u306b\u4efb\u305b\u308b\u300d\u3068\u3044\u3046\u4f75\u7528\u30b9\u30bf\u30a4\u30eb\u304c\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7d4c\u55b6\u8005\u30fb\u7ba1\u7406\u8077\u306b\u3068\u3063\u3066\u6700\u3082\u7121\u7406\u306e\u306a\u3044\u7740\u5730\u70b9\u3067\u3059\u3002\u4eca\u56de\u5b66\u3093\u3060<code>DictReader<\/code>\u3084\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u77e5\u8b58\u306f\u3001Claude Code\u306b\u6307\u793a\u3092\u51fa\u3059\u969b\u306e\u300c\u4f1a\u8a71\u306e\u89e3\u50cf\u5ea6\u300d\u3092\u4e0a\u3052\u308b\u6750\u6599\u3068\u3057\u3066\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u79c1\u81ea\u8eab\u3001Python\u3092\u30bc\u30ed\u304b\u3089\u66f8\u3051\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u300cDictReader\u306f\u5217\u540d\u3067\u5024\u304c\u53d6\u308c\u308b\u300d\u300cExcel\u5411\u3051\u306futf-8-sig\u300d\u304f\u3089\u3044\u306e\u77e5\u8b58\u304c\u3042\u308b\u3060\u3051\u3067\u3001Claude Code\u304c\u51fa\u3057\u305f\u7d50\u679c\u3092\u898b\u3066\u300c\u3042\u3001\u3053\u308c\u3067\u5408\u3063\u3066\u305d\u3046\u3060\u300d\u3068\u5224\u65ad\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=python-csv-guide&#038;blog_slug=python-csv-guide&#038;seg=default\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=python-csv-guide&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-10\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">10<\/span>\n  <span class=\"section-label\" style=\"display:block;\">CONCLUSION<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u307e\u3068\u3081 \u2500\u2500 CSV\u51e6\u7406\u306f\u300c\u57fa\u672c\u3092\u62bc\u3055\u3048\u3066\u3001\u53cd\u5fa9\u306fAI\u306b\u4efb\u305b\u308b\u300d<\/span>\n  <span class=\"section-desc\">\u899a\u3048\u3066\u304a\u304f\u3079\u304d\u69cb\u6587\u3068\u3001\u5224\u65ad\u306e\u8ef8\u3092\u6700\u5f8c\u306b\u632f\u308a\u8fd4\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Python\u3067CSV\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u30fb\u66f8\u304d\u8fbc\u307f\u3059\u308b\u57fa\u672c\u306e\u69cb\u6587\u304b\u3089\u3001\u8f9e\u66f8\u578b\u3067\u6271\u3046<code>DictReader<\/code>\uff0f<code>DictWriter<\/code>\u3001\u5b9f\u52d9\u3067\u983b\u767a\u3059\u308b\u6587\u5b57\u30b3\u30fc\u30c9\u30fb\u6539\u884c\u30b3\u30fc\u30c9\u306e\u30c8\u30e9\u30d6\u30eb\u3001\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u6271\u3046pandas\u3068\u306e\u4f7f\u3044\u5206\u3051\u3001\u305d\u3057\u3066\u5f0a\u793eGENAI\u306e\u5b9f\u904b\u7528\u30c7\u30fc\u30bf\u3068\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u306e\u5224\u65ad\u57fa\u6e96\u307e\u3067\u3092\u6574\u7406\u3057\u307e\u3057\u305f\u3002\u6700\u5f8c\u306b\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>CSV\u306f<code>csv.reader()<\/code>\uff0f<code>csv.writer()<\/code>\u3067\u8aad\u307f\u66f8\u304d\u3067\u304d\u3001\u5024\u306f\u3059\u3079\u3066\u6587\u5b57\u5217\u578b\u3067\u8fd4\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><code>open()<\/code>\u6642\u306f<code>encoding<\/code>\u3068<code>newline=''<\/code>\u306e\u6307\u5b9a\u3092\u5fd8\u308c\u305a\u306b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><code>DictReader<\/code>\uff0f<code>DictWriter<\/code>\u3092\u4f7f\u3046\u3068\u3001\u5217\u540d\u3067\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u4fdd\u5b88\u6027\u304c\u4e0a\u304c\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u65e5\u672c\u8a9eCSV\u306fShift-JIS\uff08cp932\uff09\u306e\u5834\u5408\u304c\u3042\u308a\u3001Excel\u5411\u3051\u66f8\u304d\u51fa\u3057\u306f<code>utf-8-sig<\/code>\u304c\u5b89\u5168<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u5927\u91cf\u30c7\u30fc\u30bf\u30fb\u8907\u96d1\u306a\u96c6\u8a08\u306fpandas\u306e\u65b9\u304c\u30b3\u30fc\u30c9\u91cf\u3092\u5927\u5e45\u306b\u6e1b\u3089\u305b\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u5f0a\u793eGENAI\u3067\u306fCSV\/\u30c7\u30fc\u30bf\u96c6\u8a08\u696d\u52d9\u3092\u542b\u3081\u3001\u670830,000\u5186\u306e\u30d7\u30e9\u30f3\u3067\u6708\u9593160\u6642\u9593\u76f8\u5f53\u306e\u696d\u52d9\u91cf\u3092\u5206\u62c5\u3057\u3066\u3044\u308b\u808c\u611f<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u518d\u5229\u7528\u3057\u306a\u3044\u4e00\u5ea6\u304d\u308a\u306e\u51e6\u7406\u3084\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u53cd\u5fa9\u696d\u52d9\u306f\u3001Claude Code\u306b\u4efb\u305b\u305f\u65b9\u304c\u52b9\u7387\u7684\u306a\u30b1\u30fc\u30b9\u304c\u591a\u3044<\/span><\/div>\n\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u306e\u8aad\u307f\u66f8\u304d\u306f\u3001Python\u306e\u4e2d\u3067\u3082\u7279\u306b\u5b9f\u52d9\u3068\u306e\u8ddd\u96e2\u304c\u8fd1\u3044\u30c6\u30fc\u30de\u3067\u3059\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u8a18\u4e8b\u306e\u69cb\u6587\u3092\u30d9\u30fc\u30b9\u306b\u8907\u96d1\u306a\u96c6\u8a08\u51e6\u7406\u3078\u3068\u767a\u5c55\u3055\u305b\u3066\u3044\u3051\u307e\u3059\u3057\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3042\u308c\u3070\u3001\u57fa\u672c\u306e\u4ed5\u7d44\u307f\u3060\u3051\u7406\u89e3\u3057\u305f\u3046\u3048\u3067\u3001\u5b9f\u969b\u306e\u53cd\u5fa9\u4f5c\u696d\u306fClaude Code\u306e\u3088\u3046\u306aAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u4efb\u305b\u3066\u3057\u307e\u3046\u306e\u304c\u73fe\u5b9f\u7684\u306a\u9078\u629e\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\u3067\u306f\u300cAI\u9b3c\u7ba1\u7406\u300d\u3068\u3044\u3046\u30b5\u30fc\u30d3\u30b9\u3067\u3001Claude Code\u3092\u4f7f\u3063\u305f\u696d\u52d9\u81ea\u52d5\u5316\u306e\u8a2d\u8a08\u304b\u3089\u4f34\u8d70\u307e\u3067\u652f\u63f4\u3057\u3066\u3044\u307e\u3059\u3002CSV\u306e\u96c6\u8a08\u30fb\u30c7\u30fc\u30bf\u6574\u5f62\u306e\u3088\u3046\u306a\u5730\u5473\u3060\u3051\u308c\u3069\u6642\u9593\u3092\u98df\u3046\u696d\u52d9\u307b\u3069\u3001AI\u306b\u4efb\u305b\u305f\u3068\u304d\u306e\u52b9\u679c\u304c\u5927\u304d\u304f\u51fa\u3084\u3059\u3044\u9818\u57df\u3067\u3059\u3002\u6c17\u306b\u306a\u308b\u65b9\u306f\u304a\u6c17\u8efd\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">CSV\u3092\u8d77\u70b9\u3068\u3059\u308b\u30c7\u30fc\u30bf\u96c6\u8a08\u30fb\u6574\u5f62\u696d\u52d9\u3001Claude Code\u3067\u81ea\u52d5\u5316\u3057\u307e\u305b\u3093\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bce\u9031\u30fb\u6bce\u6708\u7e70\u308a\u8fd4\u3057\u3066\u3044\u308bCSV\u96c6\u8a08\u3084\u8868\u6574\u5f62\u306e\u4f5c\u696d\u306f\u3001Claude Code\u306b\u4efb\u305b\u308b\u3053\u3068\u3067\u5927\u304d\u304f\u5727\u7e2e\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br>\u5f0a\u793e\u306e\u5b9f\u904b\u7528\u30ce\u30a6\u30cf\u30a6\u3092\u30d9\u30fc\u30b9\u306b\u3001\u8cb4\u793e\u306e\u696d\u52d9\u306b\u3069\u3053\u307e\u3067\u9069\u7528\u3067\u304d\u308b\u304b\u3092\u500b\u5225\u306b\u3054\u76f8\u8ac7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300cPython\u3082CSV\u3082\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u3051\u308c\u3069\u3001\u6bce\u6708\u306e\u30c7\u30fc\u30bf\u96c6\u8a08\u3092\u306a\u3093\u3068\u304b\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u65b9\u306b\u3053\u305d\u3001Claude Code\u306b\u3088\u308b\u81ea\u52d5\u5316\u306f\u5411\u3044\u3066\u3044\u307e\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u76f8\u8ac7\u3067\u3001\u5fa1\u793e\u306e\u696d\u52d9\u306e\u4e2d\u3067\u6700\u3082\u6642\u9593\u3092\u98df\u3063\u3066\u3044\u308b\u4f5c\u696d\u3092\u4e00\u7dd2\u306b\u6d17\u3044\u51fa\u3057\u307e\u3057\u3087\u3046\u3002<\/div>\n<\/div>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u5148\u306e\u9032\u3081\u65b9\u306f\u3001\u5927\u304d\u304f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9<\/strong>\u306f\u3001<strong>AI\u9b3c\u7ba1\u7406<\/strong>\u3067Claude Code\uff0fCodex\u306e\u4f7f\u3044\u65b9\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u5b9a\u7740\u307e\u3067\u4f34\u8d70\u3092\u53d7\u3051\u306a\u304c\u3089\u3001\u793e\u5185\u306b\u4ed5\u7d44\u307f\u3092\u4f5c\u308b\u9053\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u899a\u3048\u308b\u3088\u308a\u4efb\u305b\u305f\u3044\u65b9<\/strong>\u306f\u3001<strong>AIBPO by AI\u9b3c\u7ba1\u7406<\/strong>\u3067\u3053\u306e\u8a18\u4e8b\u306e\u3088\u3046\u306a\u5b9a\u578b\u696d\u52d9\u3092\u4e38\u3054\u3068\u9810\u3051\u308b\u9053\u304c\u3042\u308a\u307e\u3059\u3002\u7dcf\u984d\u306f\u3044\u307e\u306e\u696d\u52d9\u30b3\u30b9\u30c8\u306e50%\u304c\u76ee\u5b89\u3001\u6708\u984d\u57fa\u672c\u6599\u306f0\u5186\u3067\u3059\u3002<\/p>\n<p>\u3069\u3061\u3089\u304c\u5408\u3046\u304b\u306f\u3001\u696d\u52d9\u91cf\u3068\u793e\u5185\u4f53\u5236\u6b21\u7b2c\u3067\u3059\u3002\u7121\u6599\u76f8\u8ac7\u30fb\u7121\u6599\u9069\u5408\u8a3a\u65ad\u3067\u3001\u8cb4\u793e\u306e\u5834\u5408\u306f\u3069\u3061\u3089\u304c\u5411\u304f\u304b\u304b\u3089\u3054\u76f8\u8ac7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fff;border:2px solid #eee;border-radius:16px;padding:32px 20px;margin:48px 0 16px;\">\n  <p style=\"text-align:center;font-size:13px;font-weight:700;color:#dc2626;letter-spacing:2px;margin:0 0 12px;\">NEXT STEP<\/p>\n  <p style=\"text-align:center;font-size:22px;font-weight:800;line-height:1.5;color:#1a1a1a;margin:0 0 24px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3092\u3001\u3042\u306a\u305f\u306e\u30d3\u30b8\u30cd\u30b9\u3067<br>\u5b9f\u8df5\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n  <div style=\"display:flex;gap:16px;flex-wrap:wrap;justify-content:center;\">\n    <div style=\"flex:1 1 300px;max-width:560px;background:#fafafa;border:1px solid #eee;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;\">\n      <img src=\"https:\/\/genai-ai.co.jp\/img\/flagship-onikanri.png\" alt=\"AI\u9b3c\u7ba1\u7406 \u2014 Claude Code\u5c0e\u5165\u652f\u63f4\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;aspect-ratio:16\/9;object-fit:cover;display:block;\">\n      <div style=\"padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;\">\n        <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">AI\u6d3b\u7528\u3092\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9\u3078<\/p>\n        <p style=\"font-size:20px;font-weight:800;color:#1a1a1a;margin:0 0 12px;\">AI\u9b3c\u7ba1\u7406<\/p>\n        <p style=\"font-size:14px;color:#555;margin:0 0 20px;line-height:1.7;\">Claude Code\u30fbCowork\u5c0e\u5165\u652f\u63f4\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u6d78\u900f\u307e\u3067\u5b9f\u8df5\u30d9\u30fc\u30b9\u3067\u4f34\u8d70\u3002\u300c\u81ea\u793e\u3067\u56de\u305b\u308b\u7d44\u7e54\u300d\u309290\u65e5\u3067\u4f5c\u308b\u7d4c\u55b6\u8005\u5411\u3051\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3002<\/p>\n        <div style=\"text-align:center;margin-top:auto;\">\n          <a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=article&utm_campaign=python-csv-guide&utm_content=next-step-cta\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AI\u9b3c\u7ba1\u7406\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div style=\"flex:1 1 300px;max-width:560px;background:#fafafa;border:1px solid #eee;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;\">\n      <img src=\"https:\/\/genai-ai.co.jp\/img\/flagship-aibpo.png\" alt=\"AIBPO by AI\u9b3c\u7ba1\u7406 \u2014 \u5b9a\u578b\u696d\u52d9\u306e\u4e38\u3054\u3068\u4ee3\u884c\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;aspect-ratio:16\/9;object-fit:cover;display:block;\">\n      <div style=\"padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;\">\n        <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">\u696d\u52d9\u3092\u4e38\u3054\u3068\u4efb\u305b\u305f\u3044\u65b9\u3078<\/p>\n        <p style=\"font-size:20px;font-weight:800;color:#1a1a1a;margin:0 0 12px;\">AIBPO by AI\u9b3c\u7ba1\u7406<\/p>\n        <p style=\"font-size:14px;color:#555;margin:0 0 20px;line-height:1.7;\">\u8acb\u6c42\u51e6\u7406\u30fb\u30c7\u30fc\u30bf\u5165\u529b\u30fb\u554f\u3044\u5408\u308f\u305b\u5bfe\u5fdc\u306a\u3069\u306e\u5b9a\u578b\u696d\u52d9\u3092\u3001AI\u00d7\u4eba\u306e\u54c1\u8cea\u7ba1\u7406\u4f53\u5236\u3067\u4e38\u3054\u3068\u4ee3\u884c\u3002\u3044\u307e\u306e\u30b3\u30b9\u30c8\u306e50%\u76ee\u5b89\u3067\u3001\u65e5\u3005\u306f\u6210\u679c\u7269\u3092\u627f\u8a8d\u3059\u308b\u3060\u3051\u3002<\/p>\n        <div style=\"text-align:center;margin-top:auto;\">\n          <a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/ai-bpo\/?utm_source=blog&utm_medium=article&utm_campaign=python-csv-guide&utm_content=next-step-cta-bpo\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AIBPO\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q. Python\u3067CSV\u3092\u8aad\u307f\u8fbc\u3080\u3068\u304d\u3001encoding\u306f\u4f55\u3092\u6307\u5b9a\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u307e\u305a\u306f<code>encoding='utf-8'<\/code>\u3092\u8a66\u3057\u3001<code>UnicodeDecodeError<\/code>\u304c\u51fa\u305f\u5834\u5408\u306f<code>encoding='cp932'<\/code>\uff08Shift-JIS\uff09\u3092\u8a66\u3059\u306e\u304c\u5b9f\u52d9\u4e0a\u306e\u5b9a\u77f3\u3067\u3059\u3002Excel\u3067\u4f5c\u6210\u30fb\u4fdd\u5b58\u3055\u308c\u305f\u65e5\u672c\u8a9eCSV\u306fShift-JIS\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001Web\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u51fa\u529b\u3055\u308c\u308bCSV\u306fUTF-8\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3001\u3068\u3044\u3046\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. csv.reader\u3068csv.DictReader\u306f\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u5217\u306e\u4e26\u3073\u9806\u306b\u4f9d\u5b58\u3057\u306a\u3044\u66f8\u304d\u65b9\u3092\u3057\u305f\u3044\u306a\u3089<code>DictReader<\/code>\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u5217\u540d\u3067\u5024\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u305f\u3081\u3001\u5f8c\u304b\u3089\u5217\u304c\u5897\u3048\u305f\u308a\u4e26\u3073\u9806\u304c\u5909\u308f\u3063\u305f\u308a\u3057\u3066\u3082\u30b3\u30fc\u30c9\u304c\u58ca\u308c\u306b\u304f\u304f\u3001\u53ef\u8aad\u6027\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u5217\u6570\u304c\u5c11\u306a\u304f\u5358\u7d14\u306a\u51e6\u7406\u3067\u3042\u308c\u3070<code>reader<\/code>\u3067\u3082\u5341\u5206\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. Python\u3067CSV\u3092\u66f8\u304d\u51fa\u3059\u3068\u3001Excel\u3067\u958b\u3044\u305f\u3068\u304d\u306b\u65e5\u672c\u8a9e\u304c\u6587\u5b57\u5316\u3051\u3057\u307e\u3059\u3002\u306a\u305c\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u66f8\u304d\u8fbc\u307f\u6642\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u304c<code>utf-8<\/code>\u306e\u307e\u307e\u3060\u3068\u3001Windows\u7248Excel\u304cShift-JIS\u524d\u63d0\u3067\u958b\u3044\u3066\u3057\u307e\u3046\u305f\u3081\u306b\u6587\u5b57\u5316\u3051\u304c\u8d77\u304d\u307e\u3059\u3002<code>encoding='utf-8-sig'<\/code>\uff08BOM\u4ed8\u304dUTF-8\uff09\u3067\u66f8\u304d\u51fa\u3059\u3053\u3068\u3067\u3001Excel\u304c\u6b63\u3057\u304fUTF-8\u3068\u3057\u3066\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u3053\u306e\u554f\u984c\u306f\u89e3\u6d88\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. csv\u30e2\u30b8\u30e5\u30fc\u30eb\u3068pandas\u3001\u7d50\u5c40\u3069\u3061\u3089\u3092\u899a\u3048\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u5358\u7d14\u306a\u8aad\u307f\u66f8\u304d\u3060\u3051\u306a\u3089\u6a19\u6e96\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u5341\u5206\u3067\u3059\u3002\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u7d50\u5408\u3001\u30b0\u30eb\u30fc\u30d7\u96c6\u8a08\u3001\u6761\u4ef6\u306b\u3088\u308b\u7d5e\u308a\u8fbc\u307f\u306a\u3069\u3001\u5206\u6790\u5bc4\u308a\u306e\u51e6\u7406\u304c\u5897\u3048\u3066\u304f\u308b\u5834\u5408\u306fpandas\u3092\u4f7f\u3063\u305f\u65b9\u304c\u30b3\u30fc\u30c9\u91cf\u3092\u5927\u5e45\u306b\u6e1b\u3089\u305b\u307e\u3059\u3002\u4e21\u65b9\u3092\u4f7f\u3044\u5206\u3051\u3089\u308c\u308b\u306e\u304c\u7406\u60f3\u3067\u3059\u304c\u3001\u6700\u521d\u306fcsv\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u7121\u7406\u306e\u306a\u3044\u9806\u5e8f\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u6570\u4e07\u884c\u3092\u8d85\u3048\u308b\u5927\u304d\u306aCSV\u3092\u6271\u3046\u3068\u304d\u3001\u6ce8\u610f\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u3092\u4e00\u5ea6\u306b\u30ea\u30b9\u30c8\u5316\u3059\u308b\u3088\u3046\u306a\u66f8\u304d\u65b9\u306f\u907f\u3051\u3001<code>for row in reader:<\/code>\u306e\u3088\u3046\u306b1\u884c\u305a\u3064\u51e6\u7406\u3059\u308b\u8a2d\u8a08\u304c\u5b89\u5168\u3067\u3059\u3002\u96c6\u8a08\u51e6\u7406\u304c\u8907\u96d1\u306a\u5834\u5408\u306f\u3001\u5185\u90e8\u3067\u52b9\u7387\u7684\u306a\u51e6\u7406\u3092\u884c\u3063\u3066\u3044\u308bpandas\u306b\u4efb\u305b\u305f\u65b9\u304c\u3001\u30b3\u30fc\u30c9\u3082\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u51e6\u7406\u901f\u5ea6\u306e\u9762\u3067\u3082\u6709\u5229\u306b\u306a\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. CSV\u306e\u5024\u304c\u30ab\u30f3\u30de\u3092\u542b\u3093\u3067\u3044\u3066\u3082\u3001\u5217\u304c\u30ba\u30ec\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. CSV\u306e\u4ed5\u69d8\u3067\u306f\u3001\u30ab\u30f3\u30de\u3092\u542b\u3080\u5024\u3092\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u3080\u30eb\u30fc\u30eb\u306b\u306a\u3063\u3066\u304a\u308a\u3001<code>csv.reader()<\/code>\u3084<code>csv.writer()<\/code>\u306f\u3053\u306e\u51e6\u7406\u3092\u81ea\u52d5\u7684\u306b\u884c\u3044\u307e\u3059\u3002\u81ea\u5df1\u6d41\u306e<code>split(',')<\/code>\u3067\u306f\u3053\u306e\u51e6\u7406\u304c\u629c\u3051\u843d\u3061\u5217\u30ba\u30ec\u306e\u539f\u56e0\u306b\u306a\u308b\u305f\u3081\u3001\u5fc5\u305a<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u307e\u305f\u306fpandas\uff09\u3092\u7d4c\u7531\u3057\u3066\u8aad\u307f\u66f8\u304d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. Python\u304c\u66f8\u3051\u306a\u304f\u3066\u3082\u3001CSV\u306e\u96c6\u8a08\u3092\u81ea\u52d5\u5316\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u3042\u308a\u307e\u3059\u3002Claude Code\u306e\u3088\u3046\u306aAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u5143\u306eCSV\u30d5\u30a1\u30a4\u30eb\u3092\u6e21\u3057\u3001\u300c\u90e8\u7f72\u3054\u3068\u306b\u91d1\u984d\u3092\u5408\u8a08\u3057\u3066\u300d\u306e\u3088\u3046\u306b\u65e5\u672c\u8a9e\u3067\u76ee\u7684\u3092\u4f1d\u3048\u308b\u3068\u3001\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u7d44\u307f\u7acb\u3066\u3066\u5b9f\u884c\u3057\u3001\u7d50\u679c\u3060\u3051\u3092\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u3067\u3082\u3001\u74b0\u5883\u69cb\u7bc9\u3084\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u5de5\u7a0b\u3092\u7d4c\u305a\u306bCSV\u51e6\u7406\u3092\u81ea\u52d5\u5316\u3067\u304d\u308b\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Python\u3067CSV\u3092\u8aad\u307f\u8fbc\u3080\u3068\u304d\u3001encoding\u306f\u4f55\u3092\u6307\u5b9a\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u307e\u305a\u306f<code>encoding='utf-8'<\/code>\u3092\u8a66\u3057\u3001<code>UnicodeDecodeError<\/code>\u304c\u51fa\u305f\u5834\u5408\u306f<code>encoding='cp932'<\/code>\uff08Shift-JIS\uff09\u3092\u8a66\u3059\u306e\u304c\u5b9f\u52d9\u4e0a\u306e\u5b9a\u77f3\u3067\u3059\u3002Excel\u3067\u4f5c\u6210\u30fb\u4fdd\u5b58\u3055\u308c\u305f\u65e5\u672c\u8a9eCSV\u306fShift-JIS\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001Web\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u51fa\u529b\u3055\u308c\u308bCSV\u306fUTF-8\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3001\u3068\u3044\u3046\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"csv.reader\u3068csv.DictReader\u306f\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u5217\u306e\u4e26\u3073\u9806\u306b\u4f9d\u5b58\u3057\u306a\u3044\u66f8\u304d\u65b9\u3092\u3057\u305f\u3044\u306a\u3089<code>DictReader<\/code>\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u5217\u540d\u3067\u5024\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u305f\u3081\u3001\u5f8c\u304b\u3089\u5217\u304c\u5897\u3048\u305f\u308a\u4e26\u3073\u9806\u304c\u5909\u308f\u3063\u305f\u308a\u3057\u3066\u3082\u30b3\u30fc\u30c9\u304c\u58ca\u308c\u306b\u304f\u304f\u3001\u53ef\u8aad\u6027\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u5217\u6570\u304c\u5c11\u306a\u304f\u5358\u7d14\u306a\u51e6\u7406\u3067\u3042\u308c\u3070<code>reader<\/code>\u3067\u3082\u5341\u5206\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Python\u3067CSV\u3092\u66f8\u304d\u51fa\u3059\u3068\u3001Excel\u3067\u958b\u3044\u305f\u3068\u304d\u306b\u65e5\u672c\u8a9e\u304c\u6587\u5b57\u5316\u3051\u3057\u307e\u3059\u3002\u306a\u305c\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u66f8\u304d\u8fbc\u307f\u6642\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u304c<code>utf-8<\/code>\u306e\u307e\u307e\u3060\u3068\u3001Windows\u7248Excel\u304cShift-JIS\u524d\u63d0\u3067\u958b\u3044\u3066\u3057\u307e\u3046\u305f\u3081\u306b\u6587\u5b57\u5316\u3051\u304c\u8d77\u304d\u307e\u3059\u3002<code>encoding='utf-8-sig'<\/code>\uff08BOM\u4ed8\u304dUTF-8\uff09\u3067\u66f8\u304d\u51fa\u3059\u3053\u3068\u3067\u3001Excel\u304c\u6b63\u3057\u304fUTF-8\u3068\u3057\u3066\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u3053\u306e\u554f\u984c\u306f\u89e3\u6d88\u3057\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"csv\u30e2\u30b8\u30e5\u30fc\u30eb\u3068pandas\u3001\u7d50\u5c40\u3069\u3061\u3089\u3092\u899a\u3048\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u5358\u7d14\u306a\u8aad\u307f\u66f8\u304d\u3060\u3051\u306a\u3089\u6a19\u6e96\u306e<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u5341\u5206\u3067\u3059\u3002\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u7d50\u5408\u3001\u30b0\u30eb\u30fc\u30d7\u96c6\u8a08\u3001\u6761\u4ef6\u306b\u3088\u308b\u7d5e\u308a\u8fbc\u307f\u306a\u3069\u3001\u5206\u6790\u5bc4\u308a\u306e\u51e6\u7406\u304c\u5897\u3048\u3066\u304f\u308b\u5834\u5408\u306fpandas\u3092\u4f7f\u3063\u305f\u65b9\u304c\u30b3\u30fc\u30c9\u91cf\u3092\u5927\u5e45\u306b\u6e1b\u3089\u305b\u307e\u3059\u3002\u4e21\u65b9\u3092\u4f7f\u3044\u5206\u3051\u3089\u308c\u308b\u306e\u304c\u7406\u60f3\u3067\u3059\u304c\u3001\u6700\u521d\u306fcsv\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u59cb\u3081\u308b\u306e\u304c\u7121\u7406\u306e\u306a\u3044\u9806\u5e8f\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u6570\u4e07\u884c\u3092\u8d85\u3048\u308b\u5927\u304d\u306aCSV\u3092\u6271\u3046\u3068\u304d\u3001\u6ce8\u610f\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u3092\u4e00\u5ea6\u306b\u30ea\u30b9\u30c8\u5316\u3059\u308b\u3088\u3046\u306a\u66f8\u304d\u65b9\u306f\u907f\u3051\u3001<code>for row in reader:<\/code>\u306e\u3088\u3046\u306b1\u884c\u305a\u3064\u51e6\u7406\u3059\u308b\u8a2d\u8a08\u304c\u5b89\u5168\u3067\u3059\u3002\u96c6\u8a08\u51e6\u7406\u304c\u8907\u96d1\u306a\u5834\u5408\u306f\u3001\u5185\u90e8\u3067\u52b9\u7387\u7684\u306a\u51e6\u7406\u3092\u884c\u3063\u3066\u3044\u308bpandas\u306b\u4efb\u305b\u305f\u65b9\u304c\u3001\u30b3\u30fc\u30c9\u3082\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u51e6\u7406\u901f\u5ea6\u306e\u9762\u3067\u3082\u6709\u5229\u306b\u306a\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u306a\u308a\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"CSV\u306e\u5024\u304c\u30ab\u30f3\u30de\u3092\u542b\u3093\u3067\u3044\u3066\u3082\u3001\u5217\u304c\u30ba\u30ec\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"CSV\u306e\u4ed5\u69d8\u3067\u306f\u3001\u30ab\u30f3\u30de\u3092\u542b\u3080\u5024\u3092\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u3080\u30eb\u30fc\u30eb\u306b\u306a\u3063\u3066\u304a\u308a\u3001<code>csv.reader()<\/code>\u3084<code>csv.writer()<\/code>\u306f\u3053\u306e\u51e6\u7406\u3092\u81ea\u52d5\u7684\u306b\u884c\u3044\u307e\u3059\u3002\u81ea\u5df1\u6d41\u306e<code>split(',')<\/code>\u3067\u306f\u3053\u306e\u51e6\u7406\u304c\u629c\u3051\u843d\u3061\u5217\u30ba\u30ec\u306e\u539f\u56e0\u306b\u306a\u308b\u305f\u3081\u3001\u5fc5\u305a<code>csv<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\uff08\u307e\u305f\u306fpandas\uff09\u3092\u7d4c\u7531\u3057\u3066\u8aad\u307f\u66f8\u304d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Python\u304c\u66f8\u3051\u306a\u304f\u3066\u3082\u3001CSV\u306e\u96c6\u8a08\u3092\u81ea\u52d5\u5316\u3059\u308b\u65b9\u6cd5\u306f\u3042\u308a\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u3042\u308a\u307e\u3059\u3002Claude Code\u306e\u3088\u3046\u306aAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u5143\u306eCSV\u30d5\u30a1\u30a4\u30eb\u3092\u6e21\u3057\u3001\u300c\u90e8\u7f72\u3054\u3068\u306b\u91d1\u984d\u3092\u5408\u8a08\u3057\u3066\u300d\u306e\u3088\u3046\u306b\u65e5\u672c\u8a9e\u3067\u76ee\u7684\u3092\u4f1d\u3048\u308b\u3068\u3001\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u7d44\u307f\u7acb\u3066\u3066\u5b9f\u884c\u3057\u3001\u7d50\u679c\u3060\u3051\u3092\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u3067\u3082\u3001\u74b0\u5883\u69cb\u7bc9\u3084\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u5de5\u7a0b\u3092\u7d4c\u305a\u306bCSV\u51e6\u7406\u3092\u81ea\u52d5\u5316\u3067\u304d\u308b\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\"\n      }\n    }\n  ]\n}\n<\/script>\n\n\n\n<!-- RELATED_ARTICLES_START --><div 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Code\u3067\u7d4c\u55b6\u304c\u5909\u308f\u308b\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3082\u4f7f\u3048\u308b\u300cAI\u90e8\u4e0b\u300d\u6d3b\u7528\u306e\u5168\u624b\u9806<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-python-strip-method\/\" class=\"rel-card rel-sibling\"><span class=\"rel-cat\">\u540c\u30c6\u30fc\u30de<\/span><span class=\"rel-title\">\u30102026\u5e748\u6708\u6700\u65b0\u3011Python\u306estrip()\u3067\u7a7a\u767d\u30fb\u6587\u5b57\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3082Claude Code\u3067\u300c\u4e00\u81f4\u3057\u306a\u3044\u30c7\u30fc\u30bf\u300d\u306e\u539f\u56e0\u3092\u7a81\u304d\u6b62\u3081\u3089\u308c\u308b<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-numpy-zeros\/\" class=\"rel-card rel-sibling\"><span class=\"rel-cat\">\u540c\u30c6\u30fc\u30de<\/span><span class=\"rel-title\">\u30102026\u5e748\u6708\u6700\u65b0\u3011NumPy\u306enp.zeros\u3068\u306f\uff1f0\u57cb\u3081\u914d\u5217\u306e\u4f5c\u308a\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3082Claude Code\u3067\u30c7\u30fc\u30bf\u96c6\u8a08\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u308b<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-js-newline-string\/\" class=\"rel-card rel-sibling\"><span class=\"rel-cat\">\u540c\u30c6\u30fc\u30de<\/span><span class=\"rel-title\">\u30102026\u5e748\u6708\u6700\u65b0\u3011JavaScript\u3067\u6587\u5b57\u5217\u3092\u6539\u884c\u3059\u308b\u65b9\u6cd5\uff5c\u300c\\n\u300d\u304cHTML\u3067\u6539\u884c\u3055\u308c\u306a\u3044\u7f60\u3068CRLF\/LF\u5909\u63db\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3082Claude Code<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-mysql-setup-guide\/\" class=\"rel-card rel-sibling\"><span class=\"rel-cat\">\u540c\u30c6\u30fc\u30de<\/span><span class=\"rel-title\">\u30102026\u5e748\u6708\u6700\u65b0\u3011MySQL\u3068\u306f\uff1f\u5c0e\u5165\u30fb\u74b0\u5883\u69cb\u7bc9\u3092\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7d4c\u55b6\u8005\u304cClaude Code\u306b\u4efb\u305b\u308b\u65b9\u6cd5<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-claude-article-writing-4\/\" class=\"rel-card rel-cross_sub\"><span class=\"rel-cat\">\u95a2\u9023\u5206\u91ce<\/span><span class=\"rel-title\">\u30102026\u5e748\u6708\u6700\u65b0\u3011Claude\u3067\u52b9\u679c\u7684\u306a\u8a18\u4e8b\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\uff5cSEO\u8a18\u4e8b\u91cf\u7523\u306e\u5b9f\u8df5\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3068\u30d7\u30ed\u30f3\u30d7\u30c8\u8a2d\u8a08<\/span><\/a><a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-vs-genspark-09\/\" class=\"rel-card rel-winner\"><span class=\"rel-cat\">\u4eba\u6c17\u8a18\u4e8b<\/span><span 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