Author levkivskyi
Recipients Inyeol.Lee, arigo, belopolsky, benjamin.peterson, danielsh, emptysquare, erickt, esc24, georg.brandl, glyph, gvanrossum, levkivskyi, rhettinger
Date 2017-01-28.11:28:56
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Message-id <1485602937.26.0.552045647376.issue10544@psf.upfronthosting.co.za>
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> How about fixing CPython to raise SyntaxWarning or even SyntaxError?

I think it is better to just fix the issue, i.e. make comprehensions be equivalent to for-loops even if they contain `yield`. (In particular this will lead to [(yield i) for i in range(5)] be SyntaxError outside function).

The example of `await` shows that it is possible without leaking the loop variable into enclosing scope.
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Date User Action Args
2017-01-28 11:28:57levkivskyisetrecipients: + levkivskyi, gvanrossum, arigo, georg.brandl, rhettinger, belopolsky, benjamin.peterson, erickt, glyph, Inyeol.Lee, esc24, danielsh, emptysquare
2017-01-28 11:28:57levkivskyisetmessageid: <1485602937.26.0.552045647376.issue10544@psf.upfronthosting.co.za>
2017-01-28 11:28:57levkivskyilinkissue10544 messages
2017-01-28 11:28:56levkivskyicreate