Skip to main content

Ctrl+K

User Guide
API reference
Building from source
Development
Release notes
Learn
- NEPs

GitHub

User Guide
API reference
Building from source
Development
Release notes
Learn
NEPs

GitHub

Section Navigation

NumPy’s module structure

Array objects

Universal functions (ufunc)

Routines and objects by topic

Typing (numpy.typing)

NumPy C-API

Array API standard compatibility
CPU/SIMD optimizations
Thread Safety
Global Configuration Options
NumPy security
Status of numpy.distutils and migration advice
numpy.distutils user guide
NumPy and SWIG

NumPy reference
Array objects
Masked arrays
Constants of the numpy.ma module
numpy.ma.MaskedArray.__contains__

numpy.ma.MaskedArray.contains#

method

ma.MaskedArray.__contains__(key, /)#: Return bool(key in self).

previous

numpy.ma.MaskedArray.__delitem__

next

numpy.ma.MaskedArray.__setmask__

On this page

ma.MaskedArray.__contains__

© Copyright 2008-2025, NumPy Developers.

Created using Sphinx 8.1.3.

Built with the PyData Sphinx Theme 0.16.1.