Ok, I think I've finally worked out where my error was. My .pth file had: C:\Documents and Settings\user\My Documents\my\scripts\py\mydir and I was importing mydir, but that's wrong.
I changed my .pth to have: C:\Documents and Settings\user\My Documents\my\scripts\py and imported mydir and it worked just fine I think I should have just done print sys.path at a python prompt before posting - I think that would have shown why it wasn't working (though thankyou again Peter, for without your suggestion, I wouldn't have got there). -- http://mail.python.org/mailman/listinfo/python-list
