Hello,

In Python, I can declare attributes all over the class. For example :

class Foo:
def __init__(self):
    self.a = 0

def foo(self):
    self.b = 0

It's difficult to retrieve all attributes in my class when I have a big class with a lot of attributes.

Is it better to have the following code (a) or the next following code (b) :

a) Here, it's difficult to locate all attributes :

class Foo:
    def __init__(self):
        foo_1()
        foo_2()

    def foo_1(self):
        self.a = 0
        self.b = 0

    def foo_2(self):
        self.c = 0

b) Here, it's easy to locate all attributes but is it beautiful ?

class Foo:
    def __init__(self):
        (self.a, self.b) = foo_1()
        self.c = foo_2()

    def foo_1(self):
        a = 0
        b = 0
        return (a, b)

    def foo_2(self):
        c = 0
        return c

In a nutshell, what is your conventions to declare your attributes in a class ?