ryles wrote: >> I always thought code in a module was only executed once, >> but doesn't seem to be true. >> >> I'm using Python 2.5. >> >> And this is the example: >> >> == A.py == >> My_List = [] >> >> == B.py == >> from A import * >> My_List.append ( 3 ) >> print 'B', My_List >> import C >> >> == C.py == >> from A import * >> from B import * >> print 'C', My_List >> >> Now when you start with B.py as the main program, >> this is the resulting output: >> >> B [3] >> B [3, 3] >> C [3, 3] >> >> Why is the B.py executed twice ?
B.py is the entry point of the program and it is known internally as __main__. There is no record of a B.py. If you really must import objects from the main module you can do it like this. from __main__ import * -- Stephen Fairchild -- http://mail.python.org/mailman/listinfo/python-list
