Thanks for all you guys help.. But Peter, You said 'At first os - module, or package, it doesn't matter here - is imported.'
I'm still confused about that.. When I just call import os.path without calling import os.. In that case, you mean 'import os' is called implicitly? Why? and How? how python knows it should call import when we call import os? Please make me clear.. :) Thanks.. -- http://mail.python.org/mailman/listinfo/python-list