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Commit 90dfb0b

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Try/except import of Axes3D
On some installs, the `mpl_toolkits` namespace package gets an old version which uses deprecated (And removed) code from the main library. On such the import of Axes3D will error with an `ImportError`. This prevents users from using any of `matplotlib`, since it is imported unconditionally by default. This just try/excepts the imports (and adjusts the registration code accordingly) to allow users to continue using matplotlib (though not 3D and possibly not other mpl_toolkits) even with older installs occluding the mpl_toolkits.
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‎lib/matplotlib/projections/__init__.py

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+10-2Lines changed: 10 additions & 2 deletions
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@@ -55,7 +55,11 @@
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from .. import axes, _docstring
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from .geo import AitoffAxes, HammerAxes, LambertAxes, MollweideAxes
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from .polar import PolarAxes
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from mpl_toolkits.mplot3d import Axes3D
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try:
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from mpl_toolkits.mplot3d import Axes3D
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except ImportError:
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Axes3D = None
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class ProjectionRegistry:
@@ -87,8 +91,12 @@ def get_projection_names(self):
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HammerAxes,
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LambertAxes,
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MollweideAxes,
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Axes3D,
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)
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if Axes3D is not None:
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projection_registry.register(Axes3D)
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else:
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# remove from namespace if not importable
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del Axes3D
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def register_projection(cls):

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