[Chimera-users] Import Chimera Modules

[Tom Goddard]

Hi Jon,

   Chimera includes the version of libfreetype.6.dylib it needs. The 
error must mean you have another older libfreetype.6.dylib on your 
system that Chimera is getting instead of its own version. The first 
thing would be to try to locate where the other libfreetype.6.dylib is.  
I guess Chimera starts on your machine, so somehow it gets the right 
library.  That suggests that you do not have the environment variables 
that control library loading setup in the same way as Chimera does.  I'd 
suggest you start Chimera, open the IDLE shell window (Tools / General 
Controls) and print all the environment variables seen by the running 
Chimera using for example

     import os
     for k,v in  os.environ.items():
       print k,v

and see if those differ from what you are trying outside Chimera.

     Tom



-------- Original Message --------
Subject: Re: [Chimera-users] Import Chimera Modules
From: Jonathan Williams
To: Tom Goddard
Date: 3/18/13 8:05 AM
> Hi Tom,
>
> Thanks for the response.  I set the DYLD_FALLBACK_LIBRARY_PATH 
> variable, and I think this took care of my original problem.  However 
> I have encountered a new error:
>
> ImportError: 
> dlopen(/Applications/Chimera.app/Contents/Resources/lib/_chimera.so, 
> 2): Library not loaded: @executable_path/../lib/libfreetype.6.dylib
>   Referenced from: 
> /Applications/Chimera.app/Contents/Resources/lib/_chimera.dylib
>   Reason: Incompatible library version: _chimera.dylib requires 
> version 15.0.0 or later, but libfreetype.6.dylib provides version 13.0.0
>
> This seems like I just need to update my FreeType libraries, but I 
> have not had a chance to try this yet.  If you have any other 
> suggestions, those would be appreciated, otherwise I'll send an update 
> when I get a chance.
>
> Thanks again,
>
> Jon
>
>
> On Mar 15, 2013, at 7:02 PM, Tom Goddard <goddard at sonic.net 
> <mailto:goddard at sonic.net>> wrote:
>
>> Hi Jon,
>>
>> Maybe the trick is Chimera uses environment variable 
>> DYLD_FALLBACK_LIBRARY_PATH instead of LD_LIBRARY_PATH or 
>> DYLD_LIBRARY_PATH.  Here's the Chimera Mac start-up C++ code that 
>> sets the environment variables
>>
>> http://plato.cgl.ucsf.edu/trac/chimera/browser/trunk/dist/mac/chimera-aqua.cpp?rev=36787
>>
>> and a comment on this code change says "Use 
>> DYLD_FALLBACK_LIBRARY_PATH instead of DYLD_LIBRARY_PATH, so 
>> system frameworks will get system versions of shared libraries."
>>
>> Tom
>>
>>
>>
>> On Mar 15, 2013, at 2:49 PM, Jonathan Williams wrote:
>>
>>> Hello,
>>>
>>> I am currently trying to import Chimera modules into a non-Chimera 
>>> python installation.  I have referenced previous messages from this 
>>> mailing list 
>>> (http://www.cgl.ucsf.edu/pipermail/chimera-users/2009-March/003620.html), 
>>> and have added the relevant paths to Chimera in the LD_LIBRARY_PATH, 
>>> PYTHONPATH, and CHIMERA environment variables.
>>>
>>> However when I try to import Chimera, Midas or "import chimeraInit" 
>>> followed by "chimeraInit.init([])" I receive the following error:
>>>
>>> >>> import chimeraInit
>>> >>> chimeraInit.init([])
>>> Traceback (most recent call last):
>>>   File "<stdin>", line 1, in <module>
>>>   File 
>>> "/Applications/Chimera.app/Contents/Resources/share/chimeraInit.py", 
>>> line 594, in init
>>>     import chimera
>>>   File 
>>> "/Applications/Chimera.app/Contents/Resources/share/chimera/__init__.py", 
>>> line 16, in <module>
>>>     from _chimera import BBox, Camera, Color, ColorGroup, 
>>> DirectionalLight, LODControl, Lens, LensViewer, Light, Material, 
>>> MaterialColor, Model, NoGuiViewer, OGLFont, OSLAbbreviation, 
>>> OpenModels, OpenState, PathFinder, PixelMap, Plane, Point, 
>>> PositionalLight, Selectable, SharedState, SpotLight, Sphere, 
>>> Texture, TextureColor, TrackChanges, Vector, Viewer, X3DScene, Xform
>>> ImportError: 
>>> dlopen(/Applications/Chimera.app/Contents/Resources/lib/_chimera.so, 
>>> 2): Symbol not found: __cg_TIFFClientOpen
>>>   Referenced from: 
>>> /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
>>>   Expected in: 
>>> /Applications/Chimera.app/Contents/Resources/lib/libTIFF.dylib
>>>  in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
>>> >>>
>>>
>>> I am using MacOSX 10.8.2, Python 2.7.3, and Chimera 1.7 (build 
>>> 38197) for 64bit Mac.
>>>
>>> Any help or advice would be greatly appreciated,
>>>
>>> Jon Williams
>>>
>>>
>>>
>>> _______________________________________________
>>> Chimera-users mailing list
>>> Chimera-users at cgl.ucsf.edu <mailto:Chimera-users at cgl.ucsf.edu>
>>> http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users
>>
>

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