回答編集履歴
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コマンドライン引数取得部を追記
test
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@@ -1,4 +1,4 @@
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CSVのソート部＆新CSVの作成、``pandas``を使ってこんな感じで書けます
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@@ -23,3 +23,59 @@
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df.sort_values('A').to_csv(outfile, index=None)
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```
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---
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**【追記】**
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質問のように、コマンドライン引数を取りたい場合はこんな感じ
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```Python
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import os
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import glob
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from argparse import ArgumentParser
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import pandas as pd
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def sort_all_csv(in_folder, out_folder):
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files = glob.glob(os.path.join(in_folder, '*.csv'))
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for file in files:
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outfile = os.path.join(out_folder, os.path.basename(file))
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df = pd.read_csv(file)
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df.sort_values('A').to_csv(outfile, index=None)
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if __name__ == '__main__':
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parser = ArgumentParser()
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parser.add_argument('-d', type=str, default="./test")
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parser.add_argument('-o', type=str, default="./out")
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arg = parser.parse_args()
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sort_all_csv(arg.d, arg.o)
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```
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