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Symbol not found: _CGAffineTransformIdentity on MacOS 10.6#1791

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mdboom merged 1 commit intomatplotlib:masterfrommdboom:fix-macosx-build
Feb 27, 2013

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mdboom
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On MacOS 10.6, Matplotlib installs without error, but is then not importable:

Python 3.2.3 (default, Apr 13 2012, 00:15:25) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwinType "help", "copyright", "credits" or "license" for more information.>>> import matplotlib.pyplot as pltTraceback (most recent call last):  File "<stdin>", line 1, in <module>  File "/Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/pyplot.py", line 98, in <module>    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()  File "/Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/backends/__init__.py", line 25, in pylab_setup    globals(),locals(),[backend_name])  File "/Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/backends/backend_macosx.py", line 21, in <module>    from matplotlib.backends import _macosxImportError: dlopen(/Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/backends/_macosx.so, 2): Symbol not found: _CGAffineTransformIdentity  Referenced from: /Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/backends/_macosx.so  Expected in: flat namespace in /Users/tom/Library/Python/3.2/lib/python/site-packages/matplotlib-1.3.x-py3.2-macosx-10.6-x86_64.egg/matplotlib/backends/_macosx.so

On Python 2.7, pyparsing doesn't even work:

>>> import matplotlib.pyplot as pltTraceback (most recent call last):  File "<stdin>", line 1, in <module>  File "/Users/tom/Library/Python/2.7/lib/python/site-packages/matplotlib-1.3.x-py2.7-macosx-10.6-x86_64.egg/matplotlib/__init__.py", line 113, in <module>    import pyparsing  File "/Users/tom/Library/Python/2.7/lib/python/site-packages/pyparsing-1.5.3-py2.7.egg/pyparsing.py", line 629    nonlocal limit,foundArity                 ^SyntaxError: invalid syntax

but I'll report that to the pyparsing developers.

@astrofrog
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Regarding the pyparsing bug, the reason it's using 1.5.3 is because 2.0.0 fails to install during the matplotlib install:

Processing pyparsing-2.0.0.zipWriting /var/folders/8L/8L-R-5PbEh0ef6pKH-3E5k+++TI/-Tmp-/easy_install-VocUxa/pyparsing-2.0.0/setup.cfgRunning pyparsing-2.0.0/setup.py -q bdist_egg --dist-dir /var/folders/8L/8L-R-5PbEh0ef6pKH-3E5k+++TI/-Tmp-/easy_install-VocUxa/pyparsing-2.0.0/egg-dist-tmp-XdiKmpSyntaxError: ('invalid syntax', ('build/bdist.macosx-10.6-x86_64/egg/pyparsing.py', 629, 22, '        nonlocal limit,foundArity\n'))zip_safe flag not set; analyzing archive contents...SyntaxError: ('invalid syntax', ('/Users/tom/Library/Python/2.7/lib/python/site-packages/pyparsing-1.5.3-py2.7.egg/pyparsing.py', 629, 22, '        nonlocal limit,foundArity\n'))Adding pyparsing 1.5.3 to easy-install.pth fileInstalled /Users/tom/Library/Python/2.7/lib/python/site-packages/pyparsing-1.5.3-py2.7.eggerror: Could not find required distribution pyparsing>=1.5.6

But in any case, that's a separate issue.

@pelson
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Thanks@astrofrog - I'm guessing this is new in the last day or so and this is a result of the change in#1454?

I don't think you're after a workaround, but if you were (or somebody else who finds this is) it is probably possible to change the backend inmatplotlibrc and avoid this message.

@astrofrog
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@pelson - thanks - just to confirm, I also see this on Python 2.

I opened a separate issue for the pyparsing issue (#1792).

@mdboom
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Just a note to someone trying to track down this bug -- I would compare the compiler arguments when building the_macosx.so extension prior to commit7940245 vs. now. Something is probably missing in the new version -- and the setup rework probably did not get enough mac testing. I might be able to get on a Mac later this afternoon...

@astrofrog
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I can try and provide you with the compiler arguments - let me check.

@astrofrog
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At7940245 (after):

/usr/bin/g++-4.2 -bundle -undefined dynamic_lookup -L/opt/local/lib build/temp.macosx-10.6-x86_64-2.7/src/_macosx.o build/temp.macosx-10.6-x86_64-2.7/src/agg_py_transforms.o build/temp.macosx-10.6-x86_64-2.7/src/path_cleanup.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_bezier_arc.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_curves.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_image_filters.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_trans_affine.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_vcgen_contour.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_vcgen_dash.o build/temp.macosx-10.6-x86_64-2.7/agg24/src/agg_vcgen_stroke.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxx_extensions.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxxsupport.o build/temp.macosx-10.6-x86_64-2.7/CXX/IndirectPythonInterface.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxxextensions.o -L/usr/local/lib -L/usr/lib -L/usr/X11/lib -L/opt/local/lib -lstdc++ -lm -o build/lib.macosx-10.6-x86_64-2.7/matplotlib/backends/_macosx.so

At1cc6507 (before):

/usr/bin/g++-4.2 -bundle -undefined dynamic_lookup -L/opt/local/lib build/temp.macosx-10.6-x86_64-2.7/src/_macosx.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxx_extensions.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxxextensions.o build/temp.macosx-10.6-x86_64-2.7/CXX/cxxsupport.o build/temp.macosx-10.6-x86_64-2.7/CXX/IndirectPythonInterface.o build/temp.macosx-10.6-x86_64-2.7/src/agg_py_transforms.o build/temp.macosx-10.6-x86_64-2.7/src/path_cleanup.o -L/usr/local/lib -L/usr/lib -L/usr/X11/lib -L/opt/local/lib -lstdc++ -lm -o build/lib.macosx-10.6-x86_64-2.7/matplotlib/backends/_macosx.so -framework Cocoa

That's quite a big difference!

@astrofrog
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It looks like

-framework Cocoa

is now missing - could it be that?

@mdboom
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I think that's exactly it. Would you mind testing the attached patch?

@astrofrog
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This fixes the issue - thanks!

By the way, any luck with getting Matplotlib on Shining Panda? I could set up a build on my local Jenkins Mac and publish to a remote Jenkins to catch this kind of issue early.

@mdboom
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We're in the process of setting up the funding for Shining Panda for matplotlib. Stay tuned!

mdboom added a commit that referenced this pull requestFeb 27, 2013
Symbol not found: _CGAffineTransformIdentity on MacOS 10.6
@mdboommdboom merged commit54b9e76 intomatplotlib:masterFeb 27, 2013
@mdboommdboom deleted the fix-macosx-build branchAugust 7, 2014 13:50
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@mdboom@astrofrog@pelson
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