When a character string of a certain series is in the Key of the dictionary, the character string is converted to the Value of the dictionary.

What I want to do: When a Series is in the key of the dictionary, convert the value to the value of the dictionary

【original data】 hoge = pd.Series (["3rd", "1st", "5th", "5th", "2nd", "4th"])

[Conversion list] name_lis = {"first time": "01.first", "Second time": "02.second", "Third time": "03.third", "4th": "04.fourth", "5th time": "05.fifth" }

Surround the Series with a map (Thanks to @nkay!)

hoge.map(name_lis)

Enclose Series in a dictionary

hoge.apply(lambda x: name_lis[x])

0 03.third 1 01.first 2 05.fifth 3 05.fifth 4 02.second 5 04.fourth dtype: object

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