NoInit.py

# file name: NoInit.py
class Person:
  def function(self, name, age):
    self.name = name
    self.age = age


p1 = Person()#Since we don't have an __init__-function specified, we cannot give parameters on instantiation*. p1 does not have any attributes (name or age) yet.
p1.function("John", 36)#If we want to specify attributes, we need to call an extra function.
print(p1.name)
print(p1.age)
'''
* instantiation: In programming, instantiation is the creation of a real instance or particular realization of an abstraction or template such as a class of objects or a computer process.
'''