>> After some tests, I discovered that renaming Pmc.py in pmc.py > I don't know what that means.
I simply renamed Pmc.py to pmc.py, using a lower case instead of an upper case. Of course, I also changed lines referencing to 'Pmc' (upper case) to 'pmc' (lover case) in the source code. This allows my program to work. > My guess is that somehow when the zip file was extracted, the case of > this file was not preserved, and it came out pmc.py. The zip was not extracted because there was no zip. I copied the code from my computer to a USB pen drive and ran the code from there. > My suggestion is to simply use all lower-case for your filenames What surprised me is that Windows was unable of holding upper case, so I thought there was something else. Yet, it seems that this behaviour does not surprise anyone else. Then, I'll simply changes all my source file names, despite I felt it silly... Thanks, Alessia -- http://mail.python.org/mailman/listinfo/python-list