matplotlib-devel

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

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

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

There is no __init__.py in the mpl_toolkits directory unlike with
matplotlib-1.3.1:
  $ ls -l /opt/TWWfsw/matplotlib14/lib/python27/mpl_toolkits        
  total 64
  drwxr-xr-x+ 2 root root    53 Jul 14 13:51 axes_grid
  drwxr-xr-x+ 2 root root    32 Jul 14 13:51 axes_grid1
  drwxr-xr-x+ 2 root root    29 Jul 14 13:51 axisartist
  -rw-r--r--+ 1 root root  3830 Dec 23  2014 exceltools.py
  -rw-r--r--+ 1 root root  3817 Jul 14 13:51 exceltools.pyc
  -rw-r--r--+ 1 root root  3817 Jul 14 13:51 exceltools.pyo
  -rw-r--r--+ 1 root root 19346 Dec 23  2014 gtktools.py
  -rw-r--r--+ 1 root root 19745 Jul 14 13:51 gtktools.pyc
  -rw-r--r--+ 1 root root 19706 Jul 14 13:51 gtktools.pyo
  drwxr-xr-x+ 2 root root    17 Jul 14 13:51 mplot3d
  drwxr-xr-x+ 3 root root    12 Jul 14 13:51 tests

If I copy the matplotlib-1.3.1 __init__.py to
/opt/TWWfsw/matplotlib14/lib/python27/mpl_toolkits, then everything
works ok.

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

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

[Eric F. <ef...@ha...>]

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
>
> There is no __init__.py in the mpl_toolkits directory unlike with
> matplotlib-1.3.1:
>    $ ls -l /opt/TWWfsw/matplotlib14/lib/python27/mpl_toolkits
>    total 64
>    drwxr-xr-x+ 2 root root    53 Jul 14 13:51 axes_grid
>    drwxr-xr-x+ 2 root root    32 Jul 14 13:51 axes_grid1
>    drwxr-xr-x+ 2 root root    29 Jul 14 13:51 axisartist
>    -rw-r--r--+ 1 root root  3830 Dec 23  2014 exceltools.py
>    -rw-r--r--+ 1 root root  3817 Jul 14 13:51 exceltools.pyc
>    -rw-r--r--+ 1 root root  3817 Jul 14 13:51 exceltools.pyo
>    -rw-r--r--+ 1 root root 19346 Dec 23  2014 gtktools.py
>    -rw-r--r--+ 1 root root 19745 Jul 14 13:51 gtktools.pyc
>    -rw-r--r--+ 1 root root 19706 Jul 14 13:51 gtktools.pyo
>    drwxr-xr-x+ 2 root root    17 Jul 14 13:51 mplot3d
>    drwxr-xr-x+ 3 root root    12 Jul 14 13:51 tests
>
> If I copy the matplotlib-1.3.1 __init__.py to
> /opt/TWWfsw/matplotlib14/lib/python27/mpl_toolkits, then everything
> works ok.
>

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?

Eric

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

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

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.

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

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...)