Re: [matplotlib-devel] Pull #2210 adding namespace package mpl_toolkits and Python 2.7

[Albert C. <mat...@ml...>]

On Tue, Jul 14, 2015 at 02:53:13PM -0500, Albert Chin wrote:
> On Tue, Jul 14, 2015 at 09:22:07AM -1000, Eric Firing wrote:
> > On 2015/07/14 3:59 AM, Albert Chin wrote:
> > > I've built matplotlib-1.4.3 with Python 2.7.5, 3.3.2, 3.4.3. Python
> > > 3.3.2 and 3.4.3 work ok. With Python 2.7.5, I get:
> > >      File "/tmp/lines3d_demo.py", line 2, in <module>
> > >        from mpl_toolkits.mplot3d import Axes3D
> > >    ImportError: No module named mpl_toolkits.mplot3d
> > >
> > > [[ snip snip ]]
> > 
> > I suspect this results from some aspect of your system; we routinely 
> > build and test with python 2.7.x.  Maybe your python 2.7 setuptools 
> > needs to be updated?
> 
> Most likely our fault. I rebuilt with setuptools-18.0.1 and that
> didn't help. Looking at a Fedora 22 system,
> matplotlib-1.4.3-py2.7-nspkg.pth is read, but not on our system. This
> is the problem. If I move this file out of the way on the Fedora 22
> system, the failure is the same as above. Just need to figure out how
> Python reads this file.

Ok, found the problem. Python only reads .pth files in the default
Python prefix (sys.prefix and sys.exec_prefix), not from any other
path in PYTHONPATH. I'll need to create sitecustomize.py to fix this.

-- 
albert chin (ch...@th...)