bundles / numpy latest / numpy / strings / find

function

`numpy.strings:find`

source: build-install/usr/lib/python3.14/site-packages/numpy/_core/strings.py :255

Signature

def find ( a , sub , start = 0 , end = None )

Summary

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, with ``StringDType``, ``bytes_`` or ``str_`` dtype
sub : array_like, with `np.bytes_` or `np.str_` dtype: The substring to search for.
start, end : array_like, with any integer dtype: The range to look in, interpreted as in slice notation.

Returns

y : ndarray: Output array of ints

Examples

import numpy as np
a = np.array(["NumPy is a Python library"])
np.strings.find(a, "Python")

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See also

str.find

Aliases

numpy.char.find