[EMAIL PROTECTED] wrote: >I have code like this: > >class A: > def __init__(self,j): > self.j = j > > def something(self): > print self.j > print i # PROBLEM is here there is no var i in class A but it >works ??? > >if __name__ == '__main__': > i = 10 > a = A(5) > a.something() > >I don't define global i but it will takes var i from outside of class >A. > >Can somebody explain this ??? > >pujo > > > Actually you *have* defined a global variable called 'i' - when you run code at file scope, as you have where you wrote i = 10, all variables are global. This means that they can be referred to anywhere in the module, as you found.
It also means that variable accesses are slower, since accessing globals is slower than accessing local variables. This is why many people suggest that you define a function called main() and have the main script simply call that. Michael -- http://mail.python.org/mailman/listinfo/python-list
