find . -iname '*.py' | grep -Ev 'vendor|example|doc|sphinx' | xargs -P4 -I{} python3.8 -Wall -m py_compile {} ./pyvcloud/system_test_framework/environment.py:280: SyntaxWarning: "is not" with a literal. Did you mean "!="? if pvdc_name is not '*': ./pyvcloud/system_test_framework/environment.py:352: SyntaxWarning: "is not" with a literal. Did you mean "!="? if net_name is not '*': ./pyvcloud/system_test_framework/environment.py:520: SyntaxWarning: "is not" with a literal. Did you mean "!="? if netpool_name is not '*':