On Jan 7, 6:01 pm, Steven D'Aprano <steve +comp.lang.pyt...@pearwood.info> wrote: > On Sat, 07 Jan 2012 07:00:57 -0800, Yigit Turgut wrote: > > I am trying to call a variable located in a function of a class from > > main but couldn't succeed.Any ideas? > > You cannot access local variables from outside their function. That's why > they are called *local* variables. > > You probably want to access *attributes* of the class or the instance. > You have to define them first -- you can't access something that doesn't > exist. > > class Test: > shared = 42 # Shared, class attribute > def __init__(self): > self.dt = 23 # Instance attribute, not shared. > > print(Test.shared) # prints 42 > > However, print(Test.dt) fails because no instance has been created yet, > and so there is no dt attribute. You have to create an instance first, > then __init__ will run and create the attribute: > > instance = Test() > print(instance.dt) # prints 23 > > -- > Steven
How about assigning the variable as global, wouldn't it be more effective? -- http://mail.python.org/mailman/listinfo/python-list
