matplotlib-users Mailing List for matplotlib

I use up-to-date Debian testing (wheezy) with an amd64 architecture. I 
am trying to use matplotlib with Python 3.2, I downloaded 
matplotlib-matplotlib-v1.1.0-684-ge87374e.tar.gz
I expanded the tarball and did
python3.2 setup.py build
and, as root,
python3.2 setup.py install
When I tried to run
python3.2 tests.py
I had two types of error. First the files in lib/dateutil: parser.py, 
rrule.py, etc. had not been run through 2to3. I removed back-quotes, 
used the function-call form for exceptions, and fixed some import 
statements.
After fixing these errors I get 13 messages like:
ERROR: Failure: AttributeError ('module' object has no attribute 
'test_backend_svg')
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/usr/lib/python3/dist-packages/nose/failure.py", line 37, in 
runTest
 raise self.exc_class(self.exc_val).with_traceback(self.tb)
 File "/usr/lib/python3/dist-packages/nose/loader.py", line 379, in 
loadTestsFromName
 module = resolve_name(addr.module)
 File "/usr/lib/python3/dist-packages/nose/util.py", line 331, in 
resolve_name
 obj = getattr(obj, part)
AttributeError: 'module' object has no attribute 'test_backend_svg'
These tests are all in build/lib.linux-x86_64-3.2/matplotlib/tests.
There is a similar problem in 
http://sourceforge.net/mailarchive/message.php?msg_id=28398373
What is the problem and the fix?

Hello,
I am struggling with a potentially easy problem in matplotlib: I have 
some 2D data
which I visualize using matplotlibs contour function. However, besides the
contour lines itself I want to visualize the underlying grid as well 
which I do by setting ticks for
each data point on x and y axis and setting the tick labels to void:
figure()
ax=gca()
ax.set_aspect('equal')
xax=ax.xaxis
xax.set_ticks(X[0,:])
xax.set_ticklabels('')
yax=ax.yaxis
yax.set_ticks(Y[:,0])
yax.set_ticklabels('')
contour(X,Y,g,0,linewidth=4)
ax.grid(color='r', linestyle='-', linewidth=1)
Here, X, Y are the coordinates of my grid created with
X, Y = np.meshgrid(X, Y)
So far everything is fine and I have my grid. However, I also want to 
have some tick labels
on the x and y axis. I tried that using twinx() but that has the result
that
i) the aspect ratio is lost (which I have set with ax.set_aspect('equal'))
ii) the grid-lines are re-set to the major ticks of the newly created
axis.
How can I achieve both: i) having my 2D grid vizualized and ii) having some
ticks and labels along the x and y axis.
Thanks for any help and greetings from Sweden
Michael