The professor recommended that we use DrPython in class.
The free DrPython IDE lets you download a code completion plug in, set the default folder and many other things.
Simply extract the zip file into your Python folder. You can download it from:
(Windows and Linux) http://sourceforge.net/projects/drpython/
I downloaded eg. drpython165.zip and extracted it to C:\Python25\lib
A note: you have to have the wxPython GUI toolkit installed first.