title: How to call the return values from the classes below to the above class in python?
body: <p>I am trying to call the return values of a function within a class (Second) to another class(First) using super(). The class - Second is below class First. The code is as follows</p>
  <pre><code>class First(Second):
      def __init__(self):
          super().__init__()
          self.num1 = 1
      
      # add num
      def add_nums(self):
          print(self.num1 + self.set_num2()) 
  
  
  class Second:
      def __init__(self):
          self.num2 = 2
  
      # Set num2
      def set_num2(self):
          return self.num2
  
  a = First()
  a.add_nums()
  </code></pre>
  <p>This actually works. However, if I add another class - Third below Second and call it in the class First, it doesn't work.</p>
  <p>For instance, the following code doesn't work</p>
  <pre><code>class First(Second,Third):
      def __init__(self):
          super().__init__()
          self.num1 = 1
      
      # add num
      def add_nums(self):
          print(self.num1 + self.set_num2() + self.set_num3()) 
  
  
  class Second:
      def __init__(self):
          self.num2 = 2
  
      # Set num
      def set_num2(self):
          return self.num2
  
  
  class Third:
      def __init__(self):
          self.num3 = 3
      
      def set_num3(self):
          return self.num3
  
  a = First()
  a.add_nums()
  </code></pre>