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schedule Aug 12, 2023
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To add padding to a column of strings, use the Series' `str.pad(~)` method.

As an example, consider the following DataFrame:

``` df = pd.DataFrame({"A":["aa", "bbb", "cccc", "ddddd"]})df A0 aa1 bbb2 cccc3 ddddd ```

To pad the left side of each string with character `"Z"` until a width of `4` is reached:

``` df["A"].str.pad(width=4, fillchar="Z") # side="left" 0 ZZaa1 Zbbb2 cccc3 dddddName: A, dtype: object ```

Notice how strings that are longer than the specified width are left as is.

To pad the right-side instead, just set `side="right"` like so:

``` df["A"].str.pad(width=4, fillchar="Z", side="right") 0 aaZZ1 bbbZ2 cccc3 dddddName: A, dtype: object ```

To pad both ends, set `side="both"` like so:

``` df["A"].str.pad(width=4, fillchar="Z", side="both") 0 ZaaZ1 bbbZ2 cccc3 dddddName: A, dtype: object ```
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