[Python-ideas] 'Injecting' objects as function-local constants

[Nick Coghlan]

On Sat, Jun 11, 2011 at 11:30 PM, Jan Kaliszewski <zuo at chopin.edu.pl> wrote:
> 1.
> To add a new keyword, e.g. `inject':
>    def do_and_remember(val, verbose=False):
>        inject mem = collections.Counter()
>        ...
> or maybe:
>    def do_and_remember(val, verbose=False):
>        inject collections.Counter() as mem
>        ...

This particular alternative to the default argument hack has come up
before, as has the "hidden parameters after '**'" approach. (I thought
there was a PEP on this, but I can't find anything other than the
reference in the description of Option 4 in PEP 3103 - however, there
is a thread on the topic that starts as part of the PEP 3103
discussion at http://mail.python.org/pipermail/python-dev/2006-June/066603.html)

Institutional-memory'ly yours,
Nick.

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