Prerequisites : Object Oriented Programming in Python, Object Oriented Programming in Python | Set 2
Constructors are generally used for instantiating an object.The task of constructors is to initialize(assign values) to the data members of the class when an object of class is created.In Python the __init__() method is called the constructor and is always called when an object is created.
Syntax of constructor declaration :
def __init__(self): # body of the constructor
Types of constructors :
- default constructor :The default constructor is simple constructor which doesn’t accept any arguments.It’s definition has only one argument which is a reference to the instance being constructed.
- parameterized constructor :constructor with parameters is known as parameterized constructor.The parameterized constructor take its first argument as a reference to the instance being constructed known as self and the rest of the arguments are provided by the programmer.
Example of default constructor :
Example of parameterized constructor :
First number = 1000 Second number = 2000 Addition of two numbers = 3000
- Perl | Constructors and Destructors
- Difference between the Constructors and Methods
- Reading Python File-Like Objects from C | Python
- Python | Convert list to Python array
- Python | Index of Non-Zero elements in Python list
- Important differences between Python 2.x and Python 3.x with examples
- Python | Merge Python key values to list
- Python | Sort Python Dictionaries by Key or Value
- Python | Add Logging to a Python Script
- Python | Set 4 (Dictionary, Keywords in Python)
- Python | Add Logging to Python Libraries
- Python | Visualizing O(n) using Python
- try-except vs If in Python
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.