Guido van Rossum wrote: [SNIP - Guido already said throw() is the name to be used] > - Whether and how to keep a door open for a future extension to the > syntax that allows multiple resources to be acquired in a single > with-statement. Possible syntax could be > > (a) with EXPR1 [as VAR1], EXPR2 [as VAR2], EXPR3 [as VAR3], ...: > > or > > (b) with EXPR1, EXPR2, EXPR3, ... as VAR1, VAR2, VAR3, ...: > > Variant (a) seems better and is more analogous to the use of 'as' in > import statements, and (b) has the disadvantage that if you want to > acquire several resources and not all of them have an associated > variable, you'll have to sprinkle dummy variables on the right of > 'as'. So (a) would have my preference. But I would still like to start > off without this extension. The issue is: if we allow VAR to be a > comma-separated list of variables now, that cuts off the extension to > (a) in the future; so the PEP would have to be amended to state that > VAR must be a single variable or a list of variables IN PARENTHESES. > Thoughts? >
I like a), so I say restrict the grammar as needed to allow it become a possibility. Forcing parens is a minor thing and since this is not syntactically the same as assignment the difference is negligible. -Brett _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
