singleton_final.py

class Borg:
    """Borg pattern making the class attributes global"""
    _shared_data = {} # Attribute dictionary

    def __init__(self):
        self.__dict__ = self._shared_data # Make it an attribute dictionary

        
class Singleton(Borg): #Inherits from the Borg class
    """This class now shares all its attributes among its various instances"""
    #This essenstially makes the singleton objects an object-oriented global variable

    def __init__(self, **kwargs):
        Borg.__init__(self)
        self._shared_data.update(kwargs) # Update the attribute dictionary by inserting a new key-value pair 

    def __str__(self):
        return str(self._shared_data) # Returns the attribute dictionary for printing

#Let's create a singleton object and add our first acronym
x = Singleton(HTTP="Hyper Text Transfer Protocol")
# Print the object
print(x) 

#Let's create another singleton object and if it refers to the same attribute dictionary by adding another acronym.
y = Singleton(SNMP="Simple Network Management Protocol")
# Print the object
print(y)