How to fix Error: "module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'" when calling pip
Problem Description:
On my WSL im getting the error AttributeError: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK' whenever I try to use pip e.g. pip list, python3 -m pip, etc.
Is there a way to reinstall pip or uninstall packages without using pip? I tried following the solutions in related Questions but none of them work because they either use pip or the problem persists after.
Solution – 1
The solution that worked for me was mentioned here
you have to remove the line
CB_ISSUER_CHECK = _lib.X509_V_FLAG_CB_ISSUER_CHECK
from file
/usr/lib/python3/dist-packages/OpenSSL/crypto.py
and then you can use pip again
pip uninstall cryptography
pip install --upgrade cryptography==36.0.2