[yt-users] Import error 'module' object has no attribute 'extern'

[Nathan Goldbaum]

Hey Sam,

I'm unable to reproduce this over here using "setup.py install" from
7d39049.  It's a little suspicious that you needed to use sudo to install
things, but that might also be a red herring depending on how your python
environment is set up.

FWIW, here's the sequence of commands I would use:

hg clone https://bitbucket.org/yt_analysis/yt
cd yt
hg pull -r 7d39049 https://bitbucket.org/cosmosquark/yt
hg up 7d39049
python setup.py develop

Depending on how you've set up your python installation, that last command
might need a "sudo" so it can put the egg-info file for the installation
into your path.

It might also be a good idea to clean out any old yt installations your
have by repeatedly doing "pip uninstall yt".

Python packaging, fun!

-Nathan


On Sun, Nov 16, 2014 at 11:16 AM Sam Geen <samgeen at astro.ox.ac.uk> wrote:

>  Hi Nathan,
>
> I ran hg clone -r  7d39049 https://bitbucket.org/cosmosquark/yt
> then inside the yt folder
> sudo python setup.py install
>
> I'll try your suggestion of cloning the main repo first instead.
>
> Cheers,
>
> Sam
>
>
> On 16/11/14 20:14, Nathan Goldbaum wrote:
>
> Hi Sam,
>
> Can you give a little bit more detail about how exactly you ran the setup
> script?
>
> The easiest way to do this is to clone the yt mercurial repository, pull
> Ben's changes into your local copy, then do "python setup.py develop" in
> the root of the repository.
>
> More detail here under "installing using pip or from source":
>
> http://yt-project.org/doc/installing.html
>
> On Sun, Nov 16, 2014 at 7:23 AM Sam Geen <samgeen at googlemail.com> wrote:
>
> Hi,
>>
>> I'm trying to test a pull request, and when I try to run yt after
>> installing the setup script, it gives me this error (below). The folder
>> "extern" is in the dist-packages folder. The version I'm testing is
>> https://bitbucket.org/cosmosquark/yt/commits/
>> 7d390496848a01fa113d24d1af249fac14c759a7
>>
>> Any ideas?
>>
>> Thanks,
>>
>> Sam
>>
>> In [2]: import yt
>> ------------------------------------------------------------
>> ---------------
>> AttributeError                            Traceback (most recent call
>> last)
>> <ipython-input-2-59dfcfe9846c> in <module>()
>> ----> 1 import yt
>>
>> /usr/local/lib/python2.7/dist-packages/yt-3.1dev-py2.7-
>> linux-x86_64.egg/yt/__init__.py
>> in <module>()
>>       79 import numpy # In case anyone wishes to use it by name
>>       80
>> ---> 81 from yt.funcs import \
>>       82     iterable, \
>>       83     get_memory_usage, \
>>
>> /usr/local/lib/python2.7/dist-packages/yt-3.1dev-py2.7-
>> linux-x86_64.egg/yt/funcs.py
>>
> in <module>()hg clone -r  7d39049 https://bitbucket.org/cosmosquark/yt
>
>
>>
>>       25 from yt.utilities.exceptions import *
>>       26 from yt.utilities.logger import ytLogger as mylog
>> ---> 27 import yt.extern.progressbar as pb
>>       28 import yt.utilities.rpdb as rpdb
>>       29 from yt.units.yt_array import YTArray, YTQuantity
>>
>> AttributeError: 'module' object has no attribute 'extern'
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>>
>
>
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