8d3d1d macros.python*: Use -Es/-I to invoke macro scriptlets

Authored and Committed by scop 2 years ago
    macros.python*: Use -Es/-I to invoke macro scriptlets
    
    To avoid environment and user dir influence.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1506355
    
        
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