Re: Getting a callable for any value?

References	<CAA=1kxRDu5CCL-MNj-K4hG2Xrex5tM6x-C=U+h5-Mwy3dqDuOw@mail.gmail.com>
From	Ian Kelly <ian.g.kelly@gmail.com>
Date	2013-05-29 12:24 -0600
Subject	Re: Getting a callable for any value?
Newsgroups	comp.lang.python
Message-ID	<mailman.2373.1369851922.3114.python-list@python.org> (permalink)

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On Wed, May 29, 2013 at 12:19 PM, Fábio Santos <fabiosantosart@gmail.com> wrote:
> Are you sure you don't want to use a lambda expression? They are pretty
> pythonic.
>
> none_factory = lambda: None
> defaultdict_none_factory = lambda: defaultdict(none_factory)
>
> collections.defaultdict(defaultdict_none_factory)

Gah.  If you're going to go to the trouble of assigning a name to the
lambda, then just use a def statement:

def none_factory: return None
def defaultdict_none_factory: return defaultdict(none_factory)

collections.defaultdict(defaultdict_none_factory)

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Re: Getting a callable for any value? Ian Kelly <ian.g.kelly@gmail.com> - 2013-05-29 12:24 -0600

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