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Pandas Series | zfill method
schedule Aug 11, 2023
Last updated local_offer
Tags Python●Pandas
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Pandas Series.str.zfill(~) method left-fills each string of the Series with zeros until the specified width is reached.
WARNING
If the value is not of type string, then NaN will be returned for that value. If all the values are not of type string, then an error will be thrown.
Parameters
1. width | int
The desired length to fill until. If a string is larger than the specified width, then that string is left as is.
Return Value
A Series.
Examples
Basic usage
To left-fill each value of a Series to reach a length of 5:
s = pd.Series(["ab", "2", 2])s.str.zfill(5)
0 000ab1 000022 NaNdtype: object
Notice how NaN is returned for 2 - this is because it is a not a string.
The overflow case
If a string is longer than the specified width, then that string is left as is:
s = pd.Series(["e", "abc", "3000"])s.str.zfill(2)
0 0e1 abc2 3000dtype: object
Published by Isshin Inada
Edited by 0 others
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Official Pandas Documentation
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.str.zfill.html
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