pandas.Series.str.rindex

Series.str.rindex(sub, start=0, end=None)

Return highest indexes in each string in Series/Index.

Each of the returned indexes corresponds to the position where the substring is fully contained between [start:end]. This is the same as str.rfind except instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standard str.rindex.

Parameters:

substr

Substring being searched.

startint

Left edge index.

endint

Right edge index.

Returns:

Series or Index of object

Returns a Series or an Index of the highest indexes in each string of the input.

See also

index

Return lowest indexes in each strings.

Examples

For Series.str.index:

>>> ser = pd.Series(["horse", "eagle", "donkey"])
>>> ser.str.index("e")
0   4
1   0
2   4
dtype: int64

For Series.str.rindex:

>>> ser = pd.Series(["Deer", "eagle", "Sheep"])
>>> ser.str.rindex("e")
0   2
1   4
2   3
dtype: int64