[Python-Dev] Multiline with statement line continuation (original) (raw)
Steven D'Aprano steve at pearwood.info
Sat Aug 16 07:41:47 CEST 2014
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On Fri, Aug 15, 2014 at 08:29:09PM -0700, Ethan Furman wrote:
On 08/15/2014 08:08 PM, Steven D'Aprano wrote:
[...]
>is a poor argument (that is, I'm disagreeing with it), since single >line parens-free with statements are already syntactically a tuple: > > with spam, eggs, cheese: # Commas make a tuple, not parens.
This point I do not understand -- commas /can/ create a tuple, but don't /necessarily/ create a tuple. So, semantically: no tuple.
Right! I think we are in agreement. It's not that with statements actually generate a tuple, but that they look like they include a tuple. That's what I meant by "syntactically a tuple", sorry if that was confusing. I didn't mean to suggest that Python necessarily builds a tuple of context managers.
If people were going to be prone to mistake
with (a, b, c): ...as including a tuple, they would have already mistaken:
with a, b, c: ...the same way. But they haven't.
-- Steven
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