pandas.Series.str.find#

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

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