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Editorial Team
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Asked: 2026-05-27T19:42:47+00:00

I used this question/answer to install DB2 in Lion: How do I install IBM

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I used this question/answer to install DB2 in Lion: How do I install IBM DB2 Express-C on Mac OS X 10.7 Lion?

After configuring my databases, I am able to use db2 from the command line to execute queries, but the python modules ibm_db and PyDB2 both fail to import with the following error:

>>> import ibm_db
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ImportError: dlopen(/Library/Python/2.7/site-packages/ibm_db-1.0.4-py2.7-macosx-10.7-intel.egg/ibm_db.so, 2): Symbol not found: _dsIsDirServiceRunning
 Referenced from: /Users/<username>/sqllib/lib64/libdb2.dylib
 Expected in: /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService

How can I fix this and get ibm_db and PyDB2 to work properly with DB2 in Lion?

edit: moved answer to answers

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1 Answer

  1. Editorial Team

    You can change the db2 libraries using install_name_tool to look at the copied version of DirectoryService.framework, so you don’t have to change DYLD_LIBRARY_PATH

    Full credit goes to the following, I am simply updating this thread having been through the process of install db2 / ibm_db on Lion and finding this thread as one of the top hits via Google.

    http://www.ibm.com/developerworks/forums/thread.jspa?threadID=238136&start=30&tstart=0

    with other options described here:

    http://www.ibm.com/developerworks/forums/message.jspa?messageID=14604855#14604855

    The answer (should the above thread disappear):

    Copy the Snow Leopard DirectoryService.framework to 

    /opt/SL_Frameworks/DirectoryService.framework

    Then 

    cd /opt/IBM/db2/V9.5/
install_name_tool -change /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService /opt/SL_Frameworks/DirectoryService.framework/Versions/A/DirectoryService lib64/libdb2sec.dylib
install_name_tool -change /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService /opt/SL_Frameworks/DirectoryService.framework/Versions/A/DirectoryService lib64/libdb2.dylib

    The referenced post mentions changing a third library

    libdb2e.dylib

    however, I have only installed the db2 client to use the ibm_db python module and this library is not present.

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