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Groups > comp.lang.python > #19635

Re: surprising result all (generator) (bug??)

From Neal Becker <ndbecker2@gmail.com>
Subject Re: surprising result all (generator) (bug??)
Date 2012-01-31 08:24 -0500
References <mailman.5237.1328013618.27778.python-list@python.org> <3ba87a5d-7092-432e-9bb8-c394fe69fe81@n12g2000yqb.googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.5239.1328016289.27778.python-list@python.org> (permalink)

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Mark Dickinson wrote:

> On Jan 31, 6:40 am, Neal Becker <ndbeck...@gmail.com> wrote:
>> I was just bitten by this unexpected behavior:
>>
>> In [24]: all ([i > 0 for i in xrange (10)])
>> Out[24]: False
>>
>> In [25]: all (i > 0 for i in xrange (10))
>> Out[25]: True
> 
> What does:
> 
>>>> import numpy
>>>> all is numpy.all
> 
> give you?
> 
> --
> Mark
In [31]: all is numpy.all
Out[31]: True

Excellent detective work, Mark!  But it still is unexpected, at least to me.

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Thread

surprising result all (generator) (bug??) Neal Becker <ndbecker2@gmail.com> - 2012-01-31 07:40 -0500
  Re: surprising result all (generator) (bug??) Mark Dickinson <mdickinson@enthought.com> - 2012-01-31 04:44 -0800
    Re: surprising result all (generator) (bug??) Neal Becker <ndbecker2@gmail.com> - 2012-01-31 08:24 -0500
      Re: surprising result all (generator) (bug??) Mark Dickinson <mdickinson@enthought.com> - 2012-01-31 06:25 -0800

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