Python set constructor syntax -


does know justification confusing set construction syntax? spent day unable find bug because missed comma in constructing set.

> {1 2}  syntaxerror: invalid syntax  # makes sense. > {'a' 'b'} = set(['ab'])    # not.

this has nothing sets.

two string literals separated whitespace considered one string literal.

rationale = ('this quite useful when need construct '              'a long literal without useless "+" , without '              'the indentation , newlines triple-quotes bring.')

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