What does cls() function do inside a class method?

Question

Today I\'m viewing another\'s code, and saw this:

class A(B): 
    # Omitted bulk of irrelevant code in the class

    def __init__(self, uid=None):
        self         


        

Answer 1

cls is the constructor function, it will construct class A and call the __init__(self, uid=None) function.

If you enherit it (with C), the cls will hold 'C', (and not A), see AKX answer.