# 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

rindex