Calling a variable inside a function of another class
y.turgut at gmail.com
Sat Jan 7 11:18:10 EST 2012
On Jan 7, 6:01 pm, Steven D'Aprano <steve
+comp.lang.pyt... at 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
> 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
How about assigning the variable as global, wouldn't it be more
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