numpy.core.defchararray.rfind(a, sub, start=0, end=None)[source]

For each element in a, return the highest index in the string where substring sub is found, such that sub is contained within [start, end].

Calls str.rfind element-wise.

Parameters :

a : array-like of str or unicode

sub : str or unicode

start, end : int, optional

Optional arguments start and end are interpreted as in slice notation.

Returns :

out : ndarray

Output array of ints. Return -1 on failure.

See also