[Python-Dev] namedtuples bug between 3.3.2 and 3.4.1

[Antony Lee]

FWIW I cannot reproduce the bug with Anaconda's Python 3.4.1 (from a
miniconda install):

$ python
Python 3.4.1 |Continuum Analytics, Inc.| (default, Sep  2 2014, 14:00:37)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from collections import namedtuple; vars(namedtuple("T", "a b")(1, 2))
OrderedDict([('a', 1), ('b', 2)])

Antony

2014-09-14 9:27 GMT-07:00 Antoine Pitrou <solipsis at pitrou.net>:

> On Mon, 15 Sep 2014 02:13:53 +1000
> Chris Angelico <rosuav at gmail.com> wrote:
> > On Sun, Sep 14, 2014 at 8:13 PM, Brynjar Smári Bjarnason
> > <binni at binnisb.com> wrote:
> > > I am using Python 3.4.1 installed with Anaconda. I tried the following
> > > (expecting an OrderedDict as result):
> > >
> > >>>>from collections import namedtuple
> > >>>>NT = namedtuple("NT",["a","b"])
> > >>>>nt = NT(1,2)
> > >>>>print(vars(nt))
> > > {}
> > >
> > > so the result is an empty dict. In Python 3.3.2 (downgraded in the
> > > same Anaconda environment) results in:
> > >
> > >>>>print(vars(nt))
> > > OrderedDict([('a', 1), ('b', 2)])
> >
> > For what it's worth, I can't reproduce the issue on trunk CPython
> > (built from default branch on Aug 21, so it's a little old now), nor
> > on 3.4.1 as currently shipping with Debian Jessie, nor with 3.4.0 on
> > Windows. So this may be an Anaconda issue. Do you know if it's meant
> > to be a patched install of Python?
>
> There may be a couple distutils-specific patches, but that's all.
> Anaconda issues should be reported at
> https://github.com/ContinuumIO/anaconda-issues/issues/
>
> Regards
>
> Antoine.
>
>
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