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Description
I had a coworker slightly confused about the following warning, since None is a literal andis not None is idiomatic:
>>> 'a' is not None<stdin>:1: SyntaxWarning: "is not" with a literal. Did you mean "!="?TrueI think this would be better as:
>>> 'a' is not None<stdin>:1: SyntaxWarning: "is not" with str literal. Did you mean "!="?True