How do I use a variable declared in one class in another class without using "global" in python3?

Question

Example:
class foo:
def func1() :
a=12
return a
class bar:
def func2() :
b=33
c=a+b
.....

I want to use variable a in bar without getting an error that I used the variable before declaring it. I also don't want to use the global statement.

Answer 1

Wouldn't this be quite similar to 'global' though, if all the classes and their methods access this one module ad libitum?

Answer 2

Hm... bar.func2 could take an argument.

And foo could call the method of bar, passing its a.

def foos_method():
bar.func2(self.a)

Something like that?

Answer 3

After looking at the python docs, I found that you could just create a .py file that contains all your initialized variables. This can then be imported and the variables referenced like a method.

[config. py]
a
b

[example. py]
import config

class foo:
def func1():
config.a=12

class bar:
def func2():
config.b=33
c=a+b
......

Answer 4

I am still trying to make it simpler. Also this allows the variables to be used accross different files. It also removes the nagging flake8 messeges.