[Python-Dev] namedtuples bug between 3.3.2 and 3.4.1

[Antoine Pitrou]

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.