catkin / setup.py installation into devel space not working

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Hey all,

I can't figure out how to correctly package a Python module so it shows up in my devel space after "catkin_make". I've tried every combination of setup.py and CMakeLists.txt that I can think of.

Let's say I have a ROS package called "my_package", and I'd like to have a Python module defined by "my_package.py" containing a function called "def myfunc()", so that from a different package, I could do "import my_package; my_package.myfunc()". After catkin_make, I expect things to be installed like this: devel/lib/python2.7/dist-packages/my_package.py. How do I write a CMakeLists.txt and setup.py for this package?

If this configuration is impossible, how do you recommend I structure a simple ROS package providing Python modules?

Thanks for your help!

Edit: I'm using Groovy.