numpy.char.index

char. index ( a, sub, start=0, end=None ) [source]

Like find, but raises ValueError when the substring is not found.

Calls str.index element-wise.

Parameters

a array_like of str or unicode

sub str or unicode

start, end int, optional

Returns

out ndarray

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

See also

find, str.find