pandas.Series.str.find

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

Return lowest 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.find().

Parameters:

substr

Substring being searched.

startint

Left edge index.

endint

Right edge index.

Returns:

Series or Index of int.

A Series (if the input is a Series) or an Index (if the input is an Index) of the lowest indexes corresponding to the positions where the substring is found in each string of the input.

See also

rfind

Return highest indexes in each strings.

Examples

For Series.str.find:

>>> ser = pd.Series(["_cow_", "duck_", "do_v_e"])
>>> ser.str.find("_")
0   0
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