pandas.Series.str.index¶

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

Return lowest 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.find except instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standard str.index.

Parameters:

substr: Substring being searched.
startint: Left edge index.
endint: Right edge index.

Returns:

Series or Index of object