Python: constructors

Question

can anyone explain the constructor in python how it differs from java.

Answer 1

self - is used to reference current object (instead of keywords like in some other languages). It's just a variable, so you can change its name, but self - is a standard one

Answer 2

In Python you can have 1 constructor (function with name __init__) that takes self reference and arguments:

def __init__(self, ...)

You create fields just by assigning a value to them in the constructor:

def __init__(self):
self.x = 5

In Java fields are part of class structure

Answer 3

why we every time write self keyword when creating constructor or any function

Answer 4

ok