matplotlib won't draw python3

I ran into exact same issue, but after much efforts I managed to make TkAgg working (which was giving the import error for _tkagg). Little late, but someone might find it useful.

FWIW I resolved the issue as follows (to use TkAgg):

• Installed tk-dev from package manager
• Reinstalled python3-tk from package manager
• Rebuilt and reinstalled matplotlib from source
• (and of course setting TkAgg in matplotrc)

If you think you have tk-dev and python3-tk installed correctly, you need to rebuild and reinstall matplotlib, so that it generates _tkagg.py in your backends directory.

I'm using Python3.3 (numpy 1.7) on LM14. But I think it should work on Ubuntu/Python3.2

I have been doing source builds of python 3.3.2 and matplotlib. As noted above, TkAgg works. If you are building everything from source:

1. sudo apt-get install tk-dev
2. Rebuild python3 (make clean; ./configure; make)
3. Clean matplotlib (delete egg from virtualenv, remove cache objects from ~/.config/matplotlib)
4. Rebuilt matplotlib from source (rm -r build/; python setup.py build; python setup.py install)

Finally got to see that silly box pop up wit my x=y line.

hours....

Matplotlib seems to have taken a large step towards Python 3 with their 1.2.x release. matplotlib 1.2.0rc2 (+ numpy 1.7.0b2) is working for me with

• Python 3.2.2 (virtualenv on a Linux Mint 12)
• Python 3.3.0 (local installation from source)

In both cases, matplotlib reports "TkAgg" as the backend used.

Unfortunately, I have no clue if/how this might work with Pyramid.