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Pylint no-member warnings in 4.5.4.58 #570
Description
Expected behaviour
Pylint was previously able to inspect cv2 member existence with the extension-pkg-whitelist parameter.
Actual behaviour
For opencv-python-4.5.4.58, pylint can no longer inspect the members.
Steps to reproduce
On Windows 10, Python 3.8 64bit, using Pylint 2.11.1:
"""Test module test.py"""
from cv2 import getStructuringElement, MORPH_ELLIPSE
a = getStructuringElement(MORPH_ELLIPSE, (3, 3))With opencv-python-4.5.3.56:
$ pylint test.py --extension-pkg-whitelist=cv2
-------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 5.00/10, +5.00)
With opencv-python-4.5.4.58:
$ pylint test.py --extension-pkg-whitelist=cv2
************* Module test
test.py:2:0: E0611: No name 'getStructuringElement' in module 'cv2' (no-name-in-module)
test.py:2:0: E0611: No name 'MORPH_ELLIPSE' in module 'cv2' (no-name-in-module)
----------------------------------------------------------------------
Your code has been rated at -40.00/10 (previous run: 10.00/10, -50.00)
Issue submission checklist
- This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
- I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
- The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
- I'm using the latest version of
opencv-python
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alalek commentedon Oct 21, 2021
BTW, does it work with
--unsafe-load-any-extension=y: https://pylint.pycqa.org/en/latest/technical_reference/c_extensions.htmlrobertschweizer commentedon Oct 21, 2021
Good idea, maybe the C extension name just changed. But no, with
--unsafe-load-any-extension=yit also does not work.jaime-dangelmeier commentedon Oct 26, 2021
I also tried using the
generated-members = cv2.*flag forpylint=> still the same issue.asmorkalov commentedon Nov 22, 2021
Since 4.5.4.60 pylint works with OpenCV python loader correctly. Command line example:
robertschweizer commentedon Jun 10, 2022
The fix for this was reverted in 5633cf3, so this bug appears again in version 4.6.0.66. Should we rename and reopen this issue or create a new one?
pasbi commentedon Aug 10, 2022
I get the
Module 'cv2' has no '*' member-pylint-error withpython3-opencv(4.6.0 installed withapt)opencv-python(4.6.0 installed withpip)opencv/opencvandopencv/opencv_contribbut not usingopencv-python).pylintwork was to install version 4.5.5 ofopencv-pythonwith pip.However, I'm required to build OpenCV from source for technical reasons.
What's the charm that lets the 4.5.5 pip wheel work with pylint and how can I apply it to my self-built OpenCV?
Build and test environment is a debian bookworm Docker container.