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Groups > comp.lang.python > #17162

Re: Verbose and flexible args and kwargs syntax

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On 13Dec2011 00:30, Eelco <hoogendoorn.eelco@gmail.com> wrote:
| On Dec 13, 1:27 am, alex23 <wuwe...@gmail.com> wrote:
| > On Dec 13, 3:12 am, Eelco <hoogendoorn.ee...@gmail.com> wrote:
| > > But to relate it to the topic of this thread: no, the syntax does not
| > > allow one to select the type of the resulting sequence. It always
| > > constructs a list.
| >
| > So by this argument, _every_ function that returns a list should take
| > an optional argument to specify an alternative form of sequence.
| >
| > What, exactly, is so onerous about coercing your list to _whatever_
| > type you want? You know, like everybody else has been.
| >
| > What does this _gain_ you other than one less line of code?
| 
| 1) Turning two lines of code into a single more readable one is
| nothing to scoff at
| 2) After-the-fact conversion is O(n), getting the view you want right
| away is O(1)

Regarding (2), it has already cost you O(n) to get there. So your O(1)
is a little ingenuous.
-- 
Cameron Simpson <cs@zip.com.au> DoD#743
http://www.cskk.ezoshosting.com/cs/

I'm a volunteer EMT-I on our local ambulance service; one of our Paramedics
calls squid style motorcycle accidents "ZoomSplats", as in "we had a good
ZoomSplat the other night". ;-)
        - Scott <traurig@rapnet.sanders.lockheed.com>

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Re: Verbose and flexible args and kwargs syntax Terry Reedy <tjreedy@udel.edu> - 2011-12-12 10:52 -0500
  Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 09:12 -0800
    Re: Verbose and flexible args and kwargs syntax Terry Reedy <tjreedy@udel.edu> - 2011-12-12 16:58 -0500
      Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-12 15:40 -0800
        Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-12 18:41 -0700
          Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 00:44 -0800
            Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 01:26 -0800
            Re: Verbose and flexible args and kwargs syntax Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-13 11:15 -0700
              Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 12:32 -0800
      Re: Verbose and flexible args and kwargs syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-13 01:34 +0000
    Re: Verbose and flexible args and kwargs syntax alex23 <wuwei23@gmail.com> - 2011-12-12 16:27 -0800
      Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 00:30 -0800
        Re: Verbose and flexible args and kwargs syntax Cameron Simpson <cs@zip.com.au> - 2011-12-14 06:11 +1100
          Re: Verbose and flexible args and kwargs syntax Eelco <hoogendoorn.eelco@gmail.com> - 2011-12-13 12:14 -0800

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