[Python-ideas] 'where' statement in Python? (original) (raw)

Nick Coghlan ncoghlan at gmail.com
Sat Jul 24 11:58:23 CEST 2010

On Sat, Jul 24, 2010 at 12:11 AM, Mark Dickinson <dickinsm at gmail.com> wrote:

On Tue, Jul 20, 2010 at 2:27 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

For the record, I am personally +1 on the idea (otherwise I wouldn't have put so much thought into it over the years). It's just a lot harder to define complete and consistent semantics for the concept than people often realise.

However, having the question come up twice within the last month finally inspired me to write the current status of the topic down in a deferred PEP: http://www.python.org/dev/peps/pep-3150/ Is Python's grammar still LL(1) under this proposal?

It would need to stay that way, as the LL(1) restriction is a rule Guido has stated he is very reluctant to break. I think my second grammar change suggestion conforms with that requirement but I haven't actually tried it out.

Cheers, Nick.

-- Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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