[TIP] Dependencies installation order with Tox

[Aaron Meurer]

Hi again.

I'm having another problem with dependencies with tox.  I'm trying to
test using the dependencies numpy and scipy, but they do not install
properly.  From what I can tell, scipy requires numpy, but it attempts
to install scipy first, and so the whole thing fails.  This happens
even though I have numpy listed first in the deps list.

I have attached a sample tox.ini file and output of the command tox -c
tox.ini.test -v -r to demonstrate.  Note the basepython is just to
ensure it uses fink's Python on my machine, which has numpy and scipy
installed. I have both Python 2.5 and 2.7 just to see if it would
work, but it appears that the behavior in both is the same.

Aaron Meurer
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[TOX] emptying /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/log
[TOX] using tox.ini: /Users/aaronmeurer/Documents/python/sympy/sympy/tox.ini.test
[TOX] using tox-0.9 from /Library/Python/2.6/site-packages/tox-0.9-py2.6.egg/tox/__init__.pyc
______________________________________________________________________________________________ [tox sdist] _______________________________________________________________________________________________
[TOX] ***creating sdist package
[TOX] emptying /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/dist
[TOX] /Users/aaronmeurer/Documents/python/sympy/sympy$ /usr/bin/python setup.py sdist --formats=zip --dist-dir .tox/dist >.tox/log/0.log
[TOX] ***copying new sdistfile to '/Users/aaronmeurer/.tox/distshare/sympy-0.7.0.rc2.zip'
___________________________________________________________________________________________ [tox testenv:py25] ___________________________________________________________________________________________
[TOX] ***recreating virtualenv py25 (configchange/incomplete install detected)
[TOX] emptying /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25
[TOX] /Users/aaronmeurer/Documents/python/sympy/sympy/.tox$ virtualenv --distribute --no-site-packages -p /sw/bin/python2.5 py25 >py25/log/0.log
[TOX] ***installing dependencies: numpy, scipy
[TOX] /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/log$ ../bin/pip install --download-cache=/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download numpy scipy >1.log
[TOX] ERROR: invocation failed, logfile: /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/log/1.log
[TOX] ERROR: /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/log$ ../bin/pip install --download-cache=/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download numpy scipy >1.log
Downloading/unpacking scipy
  Using download cache from /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download/http%3A%2F%2Fpypi.python.org%2Fpackages%2Fsource%2Fs%2Fscipy%2Fscipy-0.9.0.zip
  Running setup.py egg_info for package scipy
    Traceback (most recent call last):
      File "<string>", line 14, in <module>
      File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/build/scipy/setup.py", line 181, in <module>
        setup_package()
      File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/build/scipy/setup.py", line 131, in setup_package
        from numpy.distutils.core import setup
    ImportError: No module named numpy.distutils.core
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 14, in <module>

  File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/build/scipy/setup.py", line 181, in <module>

    setup_package()

  File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py25/build/scipy/setup.py", line 131, in setup_package

    from numpy.distutils.core import setup

ImportError: No module named numpy.distutils.core

----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in /Users/aaronmeurer/.pip/pip.log

[TOX] ERROR: could not install deps [numpy, scipy]
___________________________________________________________________________________________ [tox testenv:py27] ___________________________________________________________________________________________
[TOX] ***recreating virtualenv py27 (configchange/incomplete install detected)
[TOX] emptying /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27
[TOX] /Users/aaronmeurer/Documents/python/sympy/sympy/.tox$ virtualenv --distribute --no-site-packages -p /sw/bin/python2.7 py27 >py27/log/0.log
[TOX] ***installing dependencies: numpy, scipy
[TOX] /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/log$ ../bin/pip install --download-cache=/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download numpy scipy >1.log
[TOX] ERROR: invocation failed, logfile: /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/log/1.log
[TOX] ERROR: /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/log$ ../bin/pip install --download-cache=/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download numpy scipy >1.log
Downloading/unpacking scipy
  Using download cache from /Users/aaronmeurer/Documents/python/sympy/sympy/.tox/_download/http%3A%2F%2Fpypi.python.org%2Fpackages%2Fsource%2Fs%2Fscipy%2Fscipy-0.9.0.zip
  Running setup.py egg_info for package scipy
    Traceback (most recent call last):
      File "<string>", line 14, in <module>
      File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/build/scipy/setup.py", line 181, in <module>
        setup_package()
      File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/build/scipy/setup.py", line 131, in setup_package
        from numpy.distutils.core import setup
    ImportError: No module named numpy.distutils.core
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 14, in <module>

  File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/build/scipy/setup.py", line 181, in <module>

    setup_package()

  File "/Users/aaronmeurer/Documents/python/sympy/sympy/.tox/py27/build/scipy/setup.py", line 131, in setup_package

    from numpy.distutils.core import setup

ImportError: No module named numpy.distutils.core

----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in /Users/aaronmeurer/.pip/pip.log

[TOX] ERROR: could not install deps [numpy, scipy]
_____________________________________________________________________________________________ [tox summary] ______________________________________________________________________________________________
[TOX] ERROR: py25: could not install deps [numpy, scipy]
[TOX] ERROR: py27: could not install deps [numpy, scipy]
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