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@tackey

Pandasのread_csvをした際にある列をdatetimeとして読み込む

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はじめに

pandasを用いて、csvファイルを読み込む際に、ある行をdatetimeとして読み込みたい。
ただし、dtypeに datetime と記入してもダメだった。

コード

下記のように parse_dates を用いて、datetimeとして扱いたい列を指定する。

test.py
holiday = pd.read_csv(HOLIDAY_FILE,
                      encoding="cp932",
                      header=None, 
                      dtype={0: str,1:str},
                      parse_dates=[0])

すると、下記のようにdatetimeとして読み込めた。

holiday[0][0]
-> Timestamp('2010-01-01 00:00:00')

おわりに

ありがとうございました。

参考サイト

datetime dtypes in pandas read_csv

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