super().__init__(master) code example

Example 1: python super

class Square(Rectangle):
    def __init__(self, length):
        super().__init__(length, length)

Example 2: what is the purpose of super keyword in python

class Parent:
  def __init__(self, txt):
    self.message = txt

  def printmessage(self):
    print(self.message)

class Child(Parent):
  def __init__(self, txt):
    super().__init__(txt)

x = Child("Hello, and welcome!")

x.printmessage()