[Neurodebian-users] issue with python-sklearn: ImportError: cannot import name parallel

[Yaroslav Halchenko]

On October 23, 2016 7:10:27 PM GMT+02:00, Gael Varoquaux <gael.varoquaux at normalesup.org> wrote:
>Standard problem with debian replacing our joblib copy by an import,
>which then creates bug in scikit-learn.
>
>I've created a PR in scikit-learn to fix that:
>https://github.com/scikit-learn/scikit-learn/pull/7731
>
>Gaël
>
>
>
>On Sun, Oct 23, 2016 at 06:34:49PM +0200, Emanuele Olivetti wrote:
>> Hi NeuroDebian Masters!
>
>> I am playing with scikit-learn for Ubuntu 14.04, from the NeuroDebian
>repository:
>> ----
>> > apt-cache show python-sklearn
>> Package: python-sklearn
>> Source: scikit-learn
>> Version: 0.17.1-1~nd14.04+1
>> Architecture: all
>> Maintainer: NeuroDebian Maintainers <team at neuro.debian.net>
>> [...]
>> ----
>
>> Unfortunately I experience the following issue: sklearn cannot find
>joblib
>> even though it is installed:
>> ----
>> > python
>> Python 2.7.6 (default, Jun 22 2015, 17:58:13)
>> [GCC 4.8.2] on linux2
>> Type "help", "copyright", "credits" or "license" for more
>information.
>> >>> import sklearn
>> >>> sklearn.__file__
>> '/usr/lib/python2.7/dist-packages/sklearn/__init__.pyc'
>> >>> sklearn.__version__
>> '0.17.1'
>> >>> import sklearn.neighbors
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>>   File
>"/usr/lib/python2.7/dist-packages/sklearn/neighbors/__init__.py",
>> line 9, in <module>
>>     from .graph import kneighbors_graph, radius_neighbors_graph
>>   File "/usr/lib/python2.7/dist-packages/sklearn/neighbors/graph.py",
>line
>> 9, in <module>
>>     from .base import KNeighborsMixin, RadiusNeighborsMixin
>>   File "/usr/lib/python2.7/dist-packages/sklearn/neighbors/base.py",
>line
>> 18, in <module>
>>     from ..metrics import pairwise_distances
>>   File
>"/usr/lib/python2.7/dist-packages/sklearn/metrics/__init__.py", line
>> 33, in <module>
>>     from . import cluster
>>   File
>>
>"/usr/lib/python2.7/dist-packages/sklearn/metrics/cluster/__init__.py",
>line
>> 19, in <module>
>>     from .unsupervised import silhouette_samples
>>   File
>>
>"/usr/lib/python2.7/dist-packages/sklearn/metrics/cluster/unsupervised.py",
>> line 10, in <module>
>>     from ..pairwise import pairwise_distances
>>   File
>"/usr/lib/python2.7/dist-packages/sklearn/metrics/pairwise.py", line
>> 27, in <module>
>>     from ..externals.joblib import parallel
>> ImportError: cannot import name parallel
>> >>> import joblib
>> >>> joblib.__version__
>> '0.10.2'
>> ----
>
>> May this be a packaging problem?
>
>> Best,
>
>> Emanuele
>
>
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>> Neurodebian-users at lists.alioth.debian.org
>>
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I am more interested in how it surfaced since I run all the tests at package build with job lib package installed (might will be another glitch in packaging or might be just untested code)
-- 
Sent from a phone which beats iPhone.