Registry / testing / cv2-enumerate-cameras

cv2-enumerate-cameras

library1.3.3pypypi✓ verified 85d ago

Enumeration of available OpenCV camera indices via VideoCapture. Version 1.3.3, stable. Provides cross-platform functions to list camera devices without trial-and-error. Released irregularly.

testing

pip install cv2-enumerate-cameras

github ↗package ↗

INSTALL

IMPORT

SIG · CV2-ENUMERATE-CAME

cv2-enumerate-cameras

testingpythonv1.3.3

Install

1.5s avg

Import

22ms

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v1.3.3 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.018s · 17.9MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.5s · import 0.026s · 18MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

enumerate_cameras

✓ from cv2_enumerate_cameras import enumerate_cameras

Correct import for listing camera indices.

List available camera indices. Returns a list of integers.

from cv2_enumerate_cameras import enumerate_cameras cameras = enumerate_cameras() print(cameras) # e.g., [0, 1]

Debug

Known issues

gotchaFunction may return indices that fail to open if the camera is already in use by another process.

fix

Always attempt cv2.VideoCapture(index) to verify the camera is usable.

affects: all

gotchaOn some systems (e.g., Linux with V4L), the enumeration might not detect all cameras if permissions are insufficient.

fix

Ensure user has read/write access to /dev/video*.

affects: all

deprecatedThe function 'list_cameras()' (if imported from older versions) is deprecated; use 'enumerate_cameras()'.

fix

Replace 'list_cameras()' with 'enumerate_cameras()'.

affects: <1.3.0

Errors

Common errors & fixes

ModuleNotFoundError: No module named 'cv2_enumerate_cameras'

Library not installed or installed in a different environment.

fix

Run 'pip install cv2-enumerate-cameras' in the correct Python environment.

ImportError: cannot import name 'enumerate_cameras' from 'cv2_enumerate_cameras'

Using an older version of the library that does not have this function.

fix

Upgrade to the latest version: 'pip install --upgrade cv2-enumerate-cameras'.

AttributeError: 'NoneType' object has no attribute 'read'

The function returned a camera index that is actually invalid or busy.

fix

Verify the camera is available and not used elsewhere. Consider using error handling: cap = cv2.VideoCapture(index); if not cap.isOpened(): continue.

Upgrade

Version history

1.3.3latest on PyPI · released Jan 16, 2026

Audit

Dependencies

opencv-pythonrequiredCore dependency for VideoCapture functionality.

Agent activity

19 hits · last 30 days

node

Resources

githubhttps://github.com/lukehugh/cv2_enumerate_cameras ↗

packagehttps://pypi.org/project/cv2-enumerate-cameras/ ↗