numpy.core.defchararray.find¶

numpy.core.defchararray.find(a, sub, start=0, end=None)¶

For each element, return the lowest index in the string where substring sub is found.

Calls str.find element-wise.

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

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 or int

Output array of ints. Returns -1 if sub is not found.