undefined symbol: Py_InitModule4

[Martin von Gagern]

Binary package hint: python-clearsilver

python-clearsilver 0.10.4-1ubuntu1 from ubuntu hardy fails to load with python 2.5.2:

$ python --version
Python 2.5.2
$ python -c "import neo_cgi"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: /usr/lib/python2.5/site-packages/neo_cgi.so: undefined symbol: Py_InitModule4

This might be due to the fact that the same library is installed for python 2.4 and python 2.5, at least here on the amd64 architecture:

$ md5sum /usr/lib/python2.*/site-packages/neo_cgi.so
737e21784253740b7d738f2617634b31 /usr/lib/python2.4/site-packages/neo_cgi.so
737e21784253740b7d738f2617634b31 /usr/lib/python2.5/site-packages/neo_cgi.so

On intrepid i386 with clearsilver 0.10.4-1.3, the module loads, and the files are different.
This issue has impact e.g. on trac on hardy webservers.