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Editorial Team
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Asked: 2026-06-09T11:08:28+00:00

This is my first pyramid application and I have tried what ever solution I

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This is my first pyramid application and I have tried what ever solution I could find but none are working for me. I keep getting internal server error and error logs show this : 

Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]     import MySQLdb as mysql
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]   File "build/bdist.macosx-10.7-            intel/egg/MySQLdb/__init__.py", line 19, in <module>
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]   File "build/bdist.macosx-10.7-intel/egg/_mysql.py", line 7, in <module>
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]   File "build/bdist.macosx-10.7-intel/egg/_mysql.py", line 6, in __bootstrap__
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1] ImportError: dlopen(/Users/anupamtulsyan/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.7-intel.egg-tmp/_mysql.so, 2): Library not loaded: libmysqlclient.18.dylib
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]   Referenced from: /Users/anupamtulsyan/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.7-intel.egg-tmp/_mysql.so
[Tue Jul 31 02:02:23 2012] [error] [client 127.0.0.1]   Reason: image not found
[Tue Jul 31 02:02:24 2012] [error] [client 127.0.0.1] File does not exist: /opt/local/apache2/htdocs/favicon.ico

Both my mysql and python are 64 bit installation. The file ‘libmysqlclient.18.dylib’ exists in /usr/local/mysql/lib.
I am able to import MySQLdb while serving the application using :
../bin/pserver development.ini
However when running through mod_wsgi the above error keeps coming. Please someone help ! I have been stuck on this since 2 days.

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1 Answer

  1. Editorial Team

    It looks like the libmysqlclient.18.dylib is not on Apache’s path. So you probably need to set it in /usr/sbin/envvars something like:

    DYLD_LIBRARY_PATH="/usr/lib:/usr/local/mysql/lib:$DYLD_LIBRARY_PATH"

    depending on where your mysql lib is and then restart apache.

    I think you may also be able to set DYLD_RUN_PATH before building MySQLdb and it will use that path in the _mysql.so — obviating the need to set DYLD_LIBRARY_PATH

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