pwb.py wrapper compares the framework Version with the script Version. The release method of Version class is required which is provided with pkg_resources 20.4. This Vendor package is shipped with setuptools 49.4.0.
====================================================================== FAIL: test_djvutext (tests.script_tests.TestScriptSimulate) Test running djvutext -simulate. ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\projects\pywikibot-g4xqx\tests\script_tests.py", line 243, in testScript stderr_other) AssertionError: 'Use -help for further information.' not found in ['Traceback (most recent call last):', ' File "C:\\projects\\pywikibot-g4xqx\\pwb.py", line 399, in <module>', ' if not main():', ' File "C:\\projects\\pywikibot-g4xqx\\pwb.py", line 394, in main', ' module)', ' File "C:\\projects\\pywikibot-g4xqx\\pwb.py", line 93, in run_python_file', ' check_pwb_versions(package)', ' File "C:\\projects\\pywikibot-g4xqx\\pwb.py", line 51, in check_pwb_versions', ' if scripts_version.release > wikibot_version.release:', "AttributeError: 'Version' object has no attribute 'release'", "CRITICAL: Exiting due to uncaught exception <class 'AttributeError'>"]
https://ci.appveyor.com/project/Ladsgroup/pywikibot-g4xqx/build/job/txu4q1lxfrk09q50?fullLog=true