Installation Error - AttributeError: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'

[itsgitz]

When running this script on my server (Ubuntu 22.04), I had an error like AttributeError: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'. It seems like, It happened when the script was trying to install/enable Certbot. The complete error:

No VM guests are running outdated hypervisor (qemu) binaries on this host.
Traceback (most recent call last):
  File "/usr/bin/certbot", line 33, in <module>
    sys.exit(load_entry_point('certbot==1.21.0', 'console_scripts', 'certbot')())
  File "/usr/bin/certbot", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/certbot/main.py", line 2, in <module>
    from certbot._internal import main as internal_main
  File "/usr/lib/python3/dist-packages/certbot/_internal/main.py", line 17, in <module>
    import josepy as jose
  File "/usr/lib/python3/dist-packages/josepy/__init__.py", line 43, in <module>
    from josepy.json_util import (
  File "/usr/lib/python3/dist-packages/josepy/json_util.py", line 14, in <module>
    from OpenSSL import crypto
  File "/usr/local/lib/python3.10/dist-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import crypto, SSL
  File "/usr/local/lib/python3.10/dist-packages/OpenSSL/crypto.py", line 1556, in <module>
    class X509StoreFlags(object):
  File "/usr/local/lib/python3.10/dist-packages/OpenSSL/crypto.py", line 1577, in X509StoreFlags
    CB_ISSUER_CHECK = _lib.X509_V_FLAG_CB_ISSUER_CHECK
AttributeError: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'
Job for nginx.service failed.
See "systemctl status nginx.service" and "journalctl -xeu nginx.service" for details.
SSL/HTTPS is enabled!

I've found the solution for fixing this error by upgrading the PyOpenSSL library, so I added the upgrade syntax on the script like the image below:

And now the installation script works fine and no error. Should I make a PR for this? But I have to reproduce the error to make sure.

Thank you!

[Yenthe666]

Seems like a duplicate of #393

[itsgitz]

Okay and seems like it solved and closed at #398.
Thank you!