0affc8c improve PEP8 compliancy

Authored and Committed by nphilipp 4 years ago
    improve PEP8 compliancy
    
    Add basic flake8 configuration and fix some things (whitespace, ordering
    issues, etc.) that it flagged.
    
    Signed-off-by: Nils Philippsen <nils@redhat.com>
    
        
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