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make sure we only perform absolute imports on loading a backend #2335

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Merged
merged 2 commits into from
Sep 3, 2013
Merged

make sure we only perform absolute imports on loading a backend #2335

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make sure we only perform absolute imports on loading a backend
Aug 23, 2013
7ebee32
Add a comment explaning __import__ syntax.
Aug 27, 2013
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5 changes: 4 additions & 1 deletion 5 lib/matplotlib/backends/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,11 @@ def pylab_setup():
backend_name = 'backend_'+backend
backend_name = backend_name.lower() # until we banish mixed case
backend_name = 'matplotlib.backends.%s'%backend_name.lower()

# the last argument is specifies whether to use absolute or relative
# imports. 0 means only perform absolute imports.
backend_mod = __import__(backend_name,
globals(),locals(),[backend_name])
globals(),locals(),[backend_name],0)
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Add a comment explaining the reason for explicitly setting the import to be absolute. Also, I want to make sure that ipython and spyder does not break with this. Then, I want to get this patch merged asap to let it bake and hopefully we can catch anybody else that was depending on relative imports (can't imagine how, but just to be safe).

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well, from line 23 it's clear that backend_name is an absolute module name. the difference relies on how user provided strings are understood. I'll see if I can add a note where this is documented.


# Things we pull in from all backends
new_figure_manager = backend_mod.new_figure_manager
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