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Groups > comp.lang.python > #100114

Re: Accessing container's methods

From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Subject Re: Accessing container's methods
Date 2015-12-08 09:02 +1100
Message-ID <mailman.36.1449525755.12405.python-list@python.org> (permalink)
References <dcm0c2Fi2ktU1@mid.individual.net> <n44ua0$oq2$1@ger.gmane.org>

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On Tue, Dec 8, 2015 at 8:38 AM, Terry Reedy <tjreedy@udel.edu> wrote:
>>    def list_actors( self ):
>>      h=[]
>>      for n in self.actors:
>>        h.append( n.get_name() )
>>      return h
>
>
> return list(self.actors)  # or perhaps even faster
> return self.actors[:]

Not identical semantics. This is a use-case for a comprehension:

return [n.get_name() for n in self.actors]

(although I would eschew the getter in favour of just "n.name")

ChrisA

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Thread

Accessing container's methods Tony van der Hoff <tony@vanderhoff.org> - 2015-12-07 18:10 +0000
  Re: Accessing container's methods Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2015-12-07 18:21 +0000
  Re: Accessing container's methods Michael Torrie <torriem@gmail.com> - 2015-12-07 11:36 -0700
    Re: Accessing container's methods Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-07 20:03 +0100
  Re: Accessing container's methods Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-07 19:46 +0100
  Re: Accessing container's methods Peter Otten <__peter__@web.de> - 2015-12-07 19:59 +0100
  Re: Accessing container's methods Ian Kelly <ian.g.kelly@gmail.com> - 2015-12-07 12:33 -0700
  Re: Accessing container's methods Terry Reedy <tjreedy@udel.edu> - 2015-12-07 16:38 -0500
  Re: Accessing container's methods Chris Angelico <rosuav@gmail.com> - 2015-12-08 09:02 +1100
  Re: Accessing container's methods Erik <python@lucidity.plus.com> - 2015-12-07 23:47 +0000
    Re: Accessing container's methods Tony van der Hoff <tony@vanderhoff.org> - 2015-12-08 12:35 +0000
    Re: Accessing container's methods [solved] Tony van der Hoff <tony@vanderhoff.org> - 2015-12-08 13:46 +0000
    Re: Accessing container's methods Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-08 20:02 +0100
      Re: Accessing container's methods Vincent Vande Vyvre <vincent.vande.vyvre@telenet.be> - 2015-12-08 20:54 +0100
        Re: Accessing container's methods Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-08 23:51 +0100
      Re: Accessing container's methods Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-08 20:30 +0000
        Re: Accessing container's methods Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-08 23:52 +0100
          Re: Accessing container's methods Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-08 22:59 +0000
      Re: Accessing container's methods Erik <python@lucidity.plus.com> - 2015-12-08 22:37 +0000
      Re: Accessing container's methods Ian Kelly <ian.g.kelly@gmail.com> - 2015-12-08 16:41 -0700
      Re: Accessing container's methods Chris Angelico <rosuav@gmail.com> - 2015-12-09 12:04 +1100

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