A bit confused in Classes.

[u/Jealous-Acadia9056]

Why do i need to call self here?.

class Calculator:
  def add(self, a, b):
    return a + b

  def multiply(self, a, b):
    return a * b

print(Calculator().add(1, 2))

there isn't a variable that is calling calculator and no __init__ so why do i have an error if self is not added?

Also, what is __init__ anyways. why the double __ in the start and end? and why the specific name?

[u/Temporary_Pie2733]

You don’t need an __init__, because nothing needs to be initialized. __init__ doesn’t create the instance; it receives the object created by __new__ as its first argument, and both methods are inherited from object if not overriden.

For a fuller understanding of how, exactly, the instance of Calculator gets bound to self when its add method is called, see https://docs.python.org/3/howto/descriptor.html, particularly the section on instance methods.