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.findexcept instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standardstr.index.- Parameters
 - substr
 Substring being searched.
- startint
 Left edge index.
- endint
 Right edge index.
- Returns
 - Series or Index of object
 
See also
rindexReturn highest indexes in each strings.