On 2018年04月20日 12:43, Chris Angelico wrote:
> Except that that's now a feature of expressions, NOT of the loop
> construct. And then you're left with: why not permit this everywhere?
Sorry, I didn't understand. Didn't mean to imply it couldn't be used
everywhere.
> What would these mean?
My expectations:
with open(fn) as f: # current behavior
with (open(fn) as f): # syntax error, missing clause
with closing(urlopen(url)) as dl: # current behavior
with closing(urlopen(url) as dl): # syntax error, missing clause
with (closing(urlopen(url)) as dl): # syntax error, missing clause
In other words, the with statement would continue to require an as clause
outside of the parentheses. A double name binding doesn't seem very useful however.
-Mike
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