Matplotlib 3D projection axis cannot be created because of missing rcParam[u'_internal.classic_mode'] #8049
Description
Bug report
When trying to create a 3d projection axis using matplotlib mplot3d, I cannot set the projection because rcParams is missing the key u'_internal.classic_mode'. When trying to manually set rcParams['_internal.classic_mode'], I get an error that _internal.classic_mode is not a valid rcparameter.
Code for reproduction
Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> import matplotlib.pyplot as plt
>>> from mpl_toolkits.mplot3d import proj3d
>>> fig = plt.figure()
>>> ax = fig.gca(projection='3d')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/matplotlib/figure.py", line 1359, in gca
return self.add_subplot(1, 1, 1, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/figure.py", line 1005, in add_subplot
a = subplot_class_factory(projection_class)(self, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/axes/_subplots.py", line 73, in __init__
self._axes_class.__init__(self, fig, self.figbox, **kwargs)
File "/home/ahagen/.local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axes3d.py", line 97, in __init__
*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/axes/_base.py", line 508, in __init__
self._init_axis()
File "/home/ahagen/.local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axes3d.py", line 195, in _init_axis
self.xy_dataLim.intervalx, self)
File "/home/ahagen/.local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axis3d.py", line 83, in __init__
if rcParams['_internal.classic_mode']:
File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 902, in __getitem__
val = dict.__getitem__(self, key)
KeyError: u'_internal.classic_mode'
>>> plt.rcParams[u'_internal.classic_mode'] = True
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/matplotlib/__init__.py", line 888, in __setitem__
See rcParams.keys() for a list of valid parameters.' % (key,))
KeyError: u'_internal.classic_mode is not a valid rc parameter.See rcParams.keys() for a list of valid parameters.'Matplotlib version
>>> print matplotlib.__version__
1.5.1