It looks like that bug is fixed in Python 2.7.8 and Chimera is currently using Python 2.7.6. So until we update the daily builds, replace /Applications/Chimera.app/Contents/Resources/frameworks/Python.framework/Versions/2.7/lib/python2.7/_osx_support.py with the one from the Python repository http://hg.python.org/cpython/raw-file/ee879c0ffa11/Lib/_osx_support.py. HTH, Greg On 08/13/2014 08:21 AM, Mateusz Dobrychłop wrote:

Dear Chimera Team,

I'm currently trying to install BioPython using Chimera's Python copy on Mac OS X.

Thanks to the Chimera Programming FAQ, I've already managed to install BioPython succesfully on Ubuntu, but on Mac OS X I get the following error:

Error while importing Combine from /Applications/Chimera.app/Contents/Resources/share:

Traceback (most recent call last):

File "/Applications/Chimera.app/Contents/Resources/share/chimera/extension/base.py", line 349, in _importExtension

__import__(module)

File "/Applications/Chimera.app/Contents/Resources/share/Combine/ChimeraExtension.py", line 32, in <module>

balloon="Combine molecular models into new model", moleculesOnly=True)

File "/Applications/Chimera.app/Contents/Resources/share/ModelPanel/base.py", line 40, in addButton

"Button named '%s' already exists" % name

KeyError: "Button named 'copy/combine...' already exists"

Error while importing Ramachandran from /Applications/Chimera.app/Contents/Resources/share:

Traceback (most recent call last):

File "/Applications/Chimera.app/Contents/Resources/share/chimera/extension/base.py", line 349, in _importExtension

__import__(module)

File "/Applications/Chimera.app/Contents/Resources/share/Ramachandran/ChimeraExtension.py", line 29, in <module>

ModelPanel.addButton("Ramachandran plot...", emo.modelPanelCB)

File "/Applications/Chimera.app/Contents/Resources/share/ModelPanel/base.py", line 40, in addButton

"Button named '%s' already exists" % name

KeyError: "Button named 'Ramachandran plot...' already exists"

running install

running build

running build_py

running build_ext

Error while processing 'setup.py install':

TypeError: argument of type 'NoneType' is not iterable

File "/Applications/Chimera.app/Contents/Resources/frameworks/Python.framework/Versions/2.7/lib/python2.7/_osx_support.py", line 185, in _find_appropriate_compiler

if 'llvm-gcc' in data:

See reply log for Python traceback.

Is there anything I can do to solve this problem?

Best, Mateusz

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