How to update a file in python egg

python trac egg
bessarabov picture bessarabov · Sep 17, 2010 · Viewed 16k times · Source

We are using trac. In our setup we have a problem that is solved in repository. So I got the fixed file commit_update.py from the repository and I need to place it into Trac-0.12-py2.6.egg.

As egg is just a ziped filed I just unziped it, changed the file and ziped again. After restarting trac, I've got a an error message:

ExtractionError: Can't extract file(s) to egg cache

The following error occurred while trying to extract file(s) to the Python egg 
cache:

    [Errno 20] Not a directory

The Python egg cache directory is currently set to: 

    /var/trac/plugin-cache

Perhaps your account does not have write access to this directory?  You can 
change the cache directory by setting the PYTHON_EGG_CACHE environment
variable to point to an accessible directory.

I don't quite understand why I got this error, because I'm running trac instance under www-data and it is the owner of the plugin-cache.

Will appreciate any ideas.

Answer

knitti picture knitti · Sep 17, 2010

Just build a new egg (with python setup.py bdist_egg), reinstall the egg and restart your trac instance.

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