<s>[INST] Abstract methods in Python I am having trouble in using inheritance with Python. While the concept seems too easy for me in Java yet up till now I have been unable to understand in Python which is surprising to me at least.
I have a prototype which follow:
class Shape():
   def __init__(self, shape_name):
       self.shape = shape_name

class Rectangle(Shape):
   def __init__(self, name):
       self.shape = name

In the above code how can I make an abstract method that would need to be implemented for all the subclasses?
 [/INST] Before abc was introduced you would see this frequently.
class Base(object):
    def go(self):
        raise NotImplementedError("Please Implement this method")


class Specialized(Base):
    def go(self):
        print "Consider me implemented"

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