How to call Base Class s init method from the child class

Question

If I have a python class as   class BaseClass object    code and the init function of the base class   And then I define a child class such as   class ChildClass BaseClass    here I want to call the init function of the base class   If the init function of the base class takes some arguments that I am taking them as arguments of the child class s init function  how do I pass these arguments to the base class   The code that I have written is   class Car object       condition    new       def   init   self  model  color  mpg           self model   model         self color   color         self mpg     mpg  class ElectricCar Car       def   init   self  battery type  model  color  mpg           self battery type battery type         super ElectricCar  self    init   model  color  mpg    Where am I going wrong

User · Answer

You can call  the super class s constructor like this  class A object       def   init   self  number           print  parent   number  class B A       def   init   self           super B  self    init   5   b   B     NOTE   This will work only when the parent class inherits object

User · Answer

You could use super ChildClass  self    init      class BaseClass object       def   init   self   args    kwargs           pass  class ChildClass BaseClass       def   init   self   args    kwargs           super ChildClass  self    init    args    kwargs    Your indentation is incorrect  here s the modified code   class Car object       condition    new       def   init   self  model  color  mpg           self model   model         self color   color         self mpg     mpg  class ElectricCar Car       def   init   self  battery type  model  color  mpg           self battery type battery type         super ElectricCar  self    init   model  color  mpg   car   ElectricCar  battery    ford    golden   10  print car   dict     Here s the output     color    golden    mpg   10   model    ford    battery type    battery

User · Answer

If you are using Python 3  it is recommended to simply call super   without any argument   class Car object       condition    new       def   init   self  model  color  mpg           self model   model         self color   color         self mpg     mpg  class ElectricCar Car       def   init   self  battery type  model  color  mpg           self battery type battery type         super     init   model  color  mpg   car   ElectricCar  battery    ford    golden   10  print car   dict     Do not call super with class as it may lead to infinite recursion exceptions as per this answer

User · Answer

As Mingyu pointed out  there is a problem in formatting  Other than that  I would strongly recommend not using the Derived class s name while calling super   since it makes your code inflexible  code maintenance and inheritance issues   In Python 3  Use super     init   instead  Here is the code after incorporating these changes     class Car object       condition    new       def   init   self  model  color  mpg           self model   model         self color   color         self mpg     mpg  class ElectricCar Car        def   init   self  battery type  model  color  mpg           self battery type battery type         super     init   model  color  mpg    Thanks to Erwin Mayer for pointing out the issue in using   class   with super

[python] How to call Base Class's init method from the child class?

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