Initializing Objects With .__init__() – Real Python

Our students often face this common pitfall in Python: missing the double underscores in __init__(). When defining the constructor method in a Python class, you must use double underscores before and after init (__init__). This special method runs automatically when you create an instance of the class and initializes the object's attributes. Using double underscores ensures that the method is recognized as the constructor, avoiding the 'Patient() takes no arguments' error. This small but importa

__new__ vs. __init__ Methods in Python | Built In