[Python-Dev] [SPAM: 3.000] [issue11682] PEP 380 reference implementation for 3.3 (original) (raw)
Paul Moore p.f.moore at gmail.com
Thu Nov 10 09:16:08 CET 2011
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On 9 November 2011 23:11, Guido van Rossum <guido at python.org> wrote:
On Wed, Nov 9, 2011 at 2:13 PM, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
In my current grammar, it's a syntax error on its own, but 'f(yield from x, y)' parses as 'f((yield from x), y)', which seems like a reasonable interpretation to me. Once you realize that "yield from x, y" has no meaning, sure. But without thinking deeper about that I can't prove that we'll never find a meaning for it. We had a similar limitation for "with a, b:" -- initially it was illegal, eventually we gave it a meaning.
Without the context of this thread, my immediate thought would be that yield from x, y is some sort of chaining construct.
But I have no vested interest in arguing for this, it's just for information. Paul
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