4b84d90 Fix Python 3.10 build

Authored and Committed by music 2 years ago
    Fix Python 3.10 build
    
    Backport upstream commits 72f506dc and 775d506, and apply a temporary patch
    to mkdocs/tests/utils/ghp_import_tests.py (which is removed upstream after
    the current release)
    
        
file modified
+22 -1