Why I get 7 as output whether I don't define self.x=x inside class?

Question

class new:
x=7
s=new()
print(s.x)

Answer 1

Please specify a certain language
if it's python it is because you don't define the variable in a method. If you just declare it in the class outside of methods it is automatically a member of the class. If you would initialize x in the constructor you would have to use the self keyword... Also I think that the convention in python is to write class names with a capital letter at start.

Answer 2

Example:

class MyClass:
y = 2
def __init__(self) :
self. x = 1

mclass = MyClass() # y is 2 and x is 1 (both are variables of MyClass)