I am trying to install scikits.audiolab with using the pip tool. Pip appears to run the command python setup.py egg_info
from within the scikits.audiolab source directory. When it does so, I get this error:
Andrews-MacBook-Pro-2:scikits.audiolab-0.11.0 andrewhannigan$ pip install scikits.audiolab
Collecting scikits.audiolab
Using cached scikits.audiolab-0.11.0.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 20, in <module>
File "/private/var/folders/xb/qwlsm44s1wxfr82kytrgjtl80000gn/T/pip-build-vSZaU8/scikits.audiolab/setup.py", line 32, in <module>
from numpy.distutils.core import setup
ImportError: No module named numpy.distutils.core
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/xb/qwlsm44s1wxfr82kytrgjtl80000gn/T/pip-build-vSZaU8/scikits.audiolab
The issue is clearly that it can't import numpy.distutils.core
. Looking at the setup.py script, this import happens early on (at the bottom of the snippet below):
#! /usr/bin/env python
# Last Change: Fri Mar 27 05:00 PM 2009 J
# Copyright (C) 2006-2007 Cournapeau David <[email protected]>
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option) any
# later version.
#
# This library is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this library; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# TODO:
# - check how to handle cmd line build options with distutils and use
# it in the building process
from os.path import join
import os
import sys
# The following is more or less random copy/paste from numpy.distutils ...
import setuptools
from distutils.errors import DistutilsError
from numpy.distutils.core import setup
The odd part is that if I just run the above snippet of the setup.py script via python setup.py
, I don't get the import error. How does the egg_info
command line argument affect the way setup.py runs and why does it suddenly make python unable to import from numpy.distutils.core
?
There's a problem in scikits.audiolab
's setup.py
file. Take a look at https://github.com/cournape/audiolab/blob/master/setup.py:
import os
# The following is more or less random copy/paste from numpy.distutils ...
import setuptools
from numpy.distutils.core import setup
The very first thing it does is import from numpy
. If numpy
is not installed, this is guaranteed to fail with the import error you shared.
I suspect that between your failed installation attempt and your successful installation, you installed numpy manually with pip install numpy
. It's unlikely that egg_info
had anything to do with it.
Here's a demonstration of how to work around this problem, taken from the scipy
project's setup.py
:
def setup_package():
...
build_requires = []
try:
import numpy
except:
build_requires = ['numpy']
metadata = dict(
...
setup_requires = build_requires,
install_requires = build_requires,
)
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