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Re: Simple recursive sum function | what's the cause of the weird behaviour?

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From Peter Otten <__peter__@web.de>
Subject Re: Simple recursive sum function | what's the cause of the weird behaviour?
Date Sat, 06 Jul 2013 15:19:30 +0200
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Russel Walker wrote:

> Since I've already wasted a thread I might as well...
> 
> Does this serve as an acceptable solution?
> 
> def supersum(sequence, start=0):
>     result = type(start)()
>     for item in sequence:
>         try:
>             result += supersum(item, start)
>         except:
>             result += item
>     return result

That depends on what is an acceptable result ;)
For instance:

>>> supersum([2, 3], 1)
5
>>> supersum([[1], ["abc"]], [])
[1, 'a', 'b', 'c']

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Thread

Simple recursive sum function | what's the cause of the weird behaviour? Russel Walker <russ.pobox@gmail.com> - 2013-07-06 05:37 -0700
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Russel Walker <russ.pobox@gmail.com> - 2013-07-06 05:54 -0700
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Russel Walker <russ.pobox@gmail.com> - 2013-07-06 05:59 -0700
    Re: Simple recursive sum function | what's the cause of the weird behaviour? Peter Otten <__peter__@web.de> - 2013-07-06 15:19 +0200
    Re: Simple recursive sum function | what's the cause of the weird behaviour? Joshua Landau <joshua.landau.ws@gmail.com> - 2013-07-06 19:43 +0100
      Re: Simple recursive sum function | what's the cause of the weird behaviour? Rotwang <sg552@hotmail.co.uk> - 2013-07-06 21:10 +0100
        Re: Simple recursive sum function | what's the cause of the weird behaviour? Rotwang <sg552@hotmail.co.uk> - 2013-07-06 21:25 +0100
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Chris Angelico <rosuav@gmail.com> - 2013-07-07 03:22 +1000
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Terry Reedy <tjreedy@udel.edu> - 2013-07-06 14:47 -0400
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Russel Walker <russ.pobox@gmail.com> - 2013-07-07 09:13 -0700
  Re: Simple recursive sum function | what's the cause of the weird behaviour? Russel Walker <russ.pobox@gmail.com> - 2013-07-07 09:44 -0700

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