Constructor
When an object is formed, the function Object() method is invoked. The class defines this method, which can be used to set up basic variables.
The class function Object() is invoked four times if you generate four objects. Every class has a function Object(), but it isn't necessary to declare it explicitly.
The function init is used to generate the function Object() . We use the self keyword as a parameter, which refers to itself (the object).
Two variables are initialised in the function Object: tik and tat. In object-oriented programming, variables are sometimes referred to as properties. We construct one object (coin), and its variables are already populated.
class Human:
def __init__(self):
self.tik = 2
self.tat = 2
coin = Human()
print(coin.tik)
Python constructors have the following features:
A Constructor in Python is always named __init__ and begins with a double underscore ( ). ().
Arguments can also be provided to Python constructors.
A Constructor is required in Python for every class.
When a Python class is defined without the need of a Constructor, a default Constructor is formed with no arguments or parameters.
Check out type of constructor in python to learn its type.
How Python Constructor Works ?
When a Python class object is generated, the function Object() { [native code] } function is the first code segment to be performed, ensuring all initializations occurring as the program's first instance of work. The two most significant aspects in the constructors method are listed below.
1. Function Init()
When the object instance for the matching class is formed, this function is done. The def keyword is employed to describe this function Object() { [native code] } function, which is eerily similar to all other function declarations. Another prominent feature of these init functions is that they are preceding and terminated by double underscores.
2. Self Reference
The object is responded to by the self. The self must connect to the functions and variables attached with the class in which it is participating. In the function Object() { [native code] } expression, this is the very first parameter.
Conclusion
In this blog, we learned about python constructor , features of python constructor and how python constructor works .
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