In python, which of the following files is mandatory to treat a folder as a package?

When we write a python code and closes it, it disappears. So we have to save it in a file to use it again.

Similarly, when we use __init__ .py in a name of folder we have to treat it as package and use it as package.

__init__ is used to initialize object in a class. It is a reserved method in python classes.

It indicates what data must be supplied when an instance of class is created and how that data is stored internally.

It is a constructor in python.

syntax:-

class name_of_class(): 
   def __init__(self,arg1, argu2):
     self.arg1=arg1 
     self.arg2=arg2

This is all about __init__ in python.

When we save a folder __init__.py name we have to use that folder as package.