mplot3d: backend_pdf.py problem with last release not present in 1.2.1rc1

[khyox]

Bad luckily, in my first plot with matplotlib I fell in this issue:
http://stackoverflow.com/questions/7906365/matplotlib-savefig-plots-different-from-show
that redirected me to:
#786 and, finally, to:
#1223 . I reproduced in
mac OSX the problem generating pdf, ps, and eps with a python code
very similar to the mplot3d trisurf3d_demo.py example.

With the hope that the last 1.3.x development version I cloned the
'master' branch from github. I followed the special instructions in
README.osx, installed all the dependencies via macports. I built the
code using python 3.3.1. When trying to run my python script, I got
the following:

Traceback (most recent call last):
  File "./test_EventDensity.py", line 30, in <module>
    plt.savefig(dirname+pdfname, dpi=fig.dpi)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/pyplot.py",
line 494, in savefig
    return fig.savefig(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/figure.py",
line 1404, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/backend_bases.py",
line 2164, in print_figure
    **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/backend_bases.py",
line 1897, in print_pdf
    return pdf.print_pdf(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/backends/backend_pdf.py",
line 2335, in print_pdf
    self.figure.draw(renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/figure.py",
line 1028, in draw
    func(*args)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/mpl_toolkits/mplot3d/axes3d.py",
line 270, in draw
    Axes.draw(self, renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/axes.py",
line 2088, in draw
    a.draw(renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/mpl_toolkits/mplot3d/art3d.py",
line 507, in draw
    return Collection.draw(self, renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/collections.py",
line 266, in draw
    self._offset_position)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/matplotlib-1.3.x-py3.3-macosx-10.7-x86_64.egg/matplotlib/backends/backend_pdf.py",
line 1544, in draw_path_collection
    if np.all(facecolors[:, 3] == facecolors[0, 3]):
TypeError: list indices must be integers, not tuple

Then, as I am a complete newbie in python (and matplotlib) I thought
it could be a problem of using python 3.3.1, so I repeated the process
with python 2.7, but I got the same:

Traceback (most recent call last):
  File "./test_EventDensity.py", line 30, in <module>
    plt.savefig(dirname+pdfname, dpi=fig.dpi)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/pyplot.py",
line 494, in savefig
    return fig.savefig(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/figure.py",
line 1403, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/backend_bases.py",
line 2164, in print_figure
    **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/backend_bases.py",
line 1897, in print_pdf
    return pdf.print_pdf(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/backends/backend_pdf.py",
line 2335, in print_pdf
    self.figure.draw(renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 54, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/figure.py",
line 1027, in draw
    func(*args)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/mpl_toolkits/mplot3d/axes3d.py",
line 270, in draw
    Axes.draw(self, renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 54, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/axes.py",
line 2086, in draw
    a.draw(renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/mpl_toolkits/mplot3d/art3d.py",
line 507, in draw
    return Collection.draw(self, renderer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/artist.py",
line 54, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/collections.py",
line 265, in draw
    self._offset_position)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-macosx-10.7-x86_64.egg/matplotlib/backends/backend_pdf.py",
line 1544, in draw_path_collection
    if np.all(facecolors[:, 3] == facecolors[0, 3]):
TypeError: list indices must be integers, not tuple

Then, I decided to checkout the last tag, so I rebuilt after checking
out the tag 1.2.1rc1... Some fighting after with macports and
easy_install, I got such version installed for both python 3.3 and
2.7:

import matplotlib as mpl
mpl.version
'1.2.1rc1'

And my script runs perfectly in both of them! So, I post here to
report this... I hope it helps... it could be a bug in 1.3.X that was
not in 1.2.1rc1... or I am doing something bad... but, by the way, I
would like to thank all of you, the developers of matplotlib, for your
work! I wish I could contribute some day in the future!

Unfortunately, the 1.2.1rc1 version is not solving my original issue,
so I cannot get quality vectorial graphics with my mac... I'll try
next with GNU/Linux! :-)

Thanks,
Khyox

[pelson]

Do you have any code to reproduce this? A Short, Self Contained, Correct Example would be great.

Thanks for reporting!

[mdboom]

I believe this problem is fixed by 50508af which was included in master only 11 days ago. Is it possible you're not fully up-to-date with master?

[khyox]

I sent an email with that report to matplotlib-devel@lists.sourceforge.net the 12th may but, today, I discovered it has not been distributed to the list, so I decided to open the issue here. I'll fully update with master and come back soon to close the issue. Sorry for any inconvenience!

[pelson]

I'll fully update with master and come back soon to close the issue. Sorry for any inconvenience!

Great. No problems @khyox. I'll close the issue, but just re-open it if there is a problem.

Cheers!

[khyox]

I have just checked it, it's working fine now! Thank you very much!