On Sep 11, 2012, at 12:19 PM, R. David Murray wrote: >There is another possible semantic, which is that when the store type is >append, the converter should be applied to each of the individual items in >the default list.
Yep. Maybe for 3.4 <wink>. >Which brings us to another issue: as things stand now, if we have, say, >'default=['abc']', then passing in '--test x' on the command line would >result in args.test being equal to > > ['abc', 'x'] > >which is consistent with optparse but not necessarily the desired >semantics. Right. This gets to Chris's observation that we're blurring the meaning of 'default'. For action='append' should that be the default value when no arguments are given, or the starting value for the append operations? We might need to add a 'start' argument when action='append'. Cheers, -Barry _______________________________________________ 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
