difference between variables inside and outside of __init__()

Question

Is there any difference at all between these classes besides the name?

class WithClass ():
    def __init__(self):
        self.value = \"Bob\"
    def my_fu         


        

Answer 1

Without Self

Create some objects:

class foo(object):
    x = 'original class'

c1, c2 = foo(), foo()

I can change the c1 instance, and it will not affect the c2 instance:

c1.x = 'changed instance'
c2.x
>>> 'original class'

But if I change the foo class, all instances of that class will be changed as well:

foo.x = 'changed class'
c2.x
>>> 'changed class'

Please note how Python scoping works here:

c1.x
>>> 'changed instance'

With Self

Changing the class does not affect the instances:

class foo(object):
    def __init__(self):
        self.x = 'original self'

c1 = foo()
foo.x = 'changed class'
c1.x
>>> 'original self'