回答編集履歴
1
うまくいったコード全体を示す
test
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追記: datetime型をサポートしうまくいったコード全体を示します。
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```
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#!/usr/bin/env python3
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import pandas as pd
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import io
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df1 = pd.read_table(io.StringIO("""
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開催日 レース
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"""), delim_whitespace=True
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)
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df1["開催日"] = pd.to_datetime(df1["開催日"])
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df2 = df1[
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(df1.apply(lambda x: "{} {:02}".format(x["開催日"], x["レース"]), axis=1)>="2017-01-28 00:00:00 02") &
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(df1.apply(lambda x: "{} {:02}".format(x["開催日"], x["レース"]), axis=1)<="2017-01-29 00:00:00 05")
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]
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print(df2)
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```
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```
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