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pandas.Series.str.rfind — pandas 2.3.1 documentation

Series.str.rfind(sub, start=0, end=None)[source]#

Return highest indexes in each strings in the Series/Index.

Each of returned indexes corresponds to the position where the substring is fully contained between [start:end]. Return -1 on failure. Equivalent to standard str.rfind().

Parameters:

substr

Substring being searched.

startint

Left edge index.

endint

Right edge index.

Returns:

Series or Index of int.

See also

find

Return lowest indexes in each strings.

Examples

For Series.str.find:

>>> ser = pd.Series(["cow_", "duck_", "do_ve"])
>>> ser.str.find("_")
0   3
1   4
2   2
dtype: int64

For Series.str.rfind:

>>> ser = pd.Series(["_cow_", "duck_", "do_v_e"])
>>> ser.str.rfind("_")
0   4
1   4
2   4
dtype: int64

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