Plotting a matrix fails with maximum recursion depth exceeded.

[joemilbourn]

Plotting a numpy matrix in matplotlib 1.3.1 breaks, with the exception:

>>> plot(matrix([[1,2,3]]))
  File "/usr/local/lib/python2.7/dist-packages/matplotlib/units.py", line 148, in get_converter
    converter = self.get_converter(xravel[0])
  File "/usr/local/lib/python2.7/dist-packages/numpy/matrixlib/defmatrix.py", line 316, in __getitem__
    out = N.ndarray.__getitem__(self, index)
RuntimeError: maximum recursion depth exceeded

On matplotlib 1.1.1 plots three lines, as expected. Reproduced on:

• python 2.7.3, linux, numpy 1.8.0
• python 2.7.5, windows, numpy 1.7.1

[tacaswell]

Is this a duplicate of #2290 ?

[joemilbourn]

Quite possibly. It's also fixed in a matplotlib lib built from git this afternoon (commit 46a7a29).