Ensure unwanted names removed in class definition

Chris Angelico rosuav at gmail.com
Wed Aug 12 17:59:10 CEST 2015


On Thu, Aug 13, 2015 at 1:39 AM, Peter Otten <__peter__ at web.de> wrote:
> But I would probably use a generator expression. These don't leak names:
>
> Python 2.7.6 (default, Jun 22 2015, 17:58:13)
> [GCC 4.8.2] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> class Parrot:
> ...     a = [per for per in "abc"]
> ...     b = list(trans for trans in "def")
> ...

Ooh neat trick! Much cleaner than the explicit lambda that I
suggested. Withdrawing my recommendation in favour of this (but with
an explanatory comment explaining why list(genexp) is used rather than
a list comp).

ChrisA


More information about the Python-list mailing list