Usage:
/python_load module
This (re)imports a python module for you from your current PYTHONPATH, TFPATH, and TFLIBDIR. Use this instead of just '/python import mymodule' because it will also force a reload of the module for you in case it has been changed. Any functions in the module are now ready to use with /python_call.
Example:
/python_load mymodule
/python_call mymodule.dothis 1 2 3