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bpo-32012: Disallow trailing comma after genexpr without parenthesis. (#4382)

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Serhiy Storchaka 2017-11-15 08:49:40 +02:00 • committed by GitHub
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Misc/NEWS.d/next/Core and Builtins/2017-11-13-00-37-11.bpo-32012.Kprjqe.rst Normal file
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SyntaxError is now correctly raised when a generator expression without
parenthesis is passed as an argument, but followed by a trailing comma.
A generator expression always needs to be directly inside a set of parentheses
and cannot have a comma on either side.