pandas.Series.str.index

Series.str.index(self, sub, start=0, end=None) [source]

Return lowest indexes in each strings where the substring is fully contained between [start:end]. This is the same as str.find except instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standard str.index.

Parameters:	sub : str Substring being searched start : int Left edge index end : int Right edge index
Returns:	found : Series/Index of objects

See also

rindex

Return highest indexes in each strings.