adding data in a dictionary python

dict[key] = value

>>> d1 = {1: 1, 2: 2}
>>> d2 = {2: 'ha!', 3: 3}
>>> d1.update(d2)
>>> d1
{1: 1, 2: 'ha!', 3: 3}

# Let's create a dictionary, the functional way 
  
# Create your dictionary class 
class my_dictionary(dict): 
  
    # __init__ function 
    def __init__(self): 
        self = dict() 
          
    # Function to add key:value 
    def add(self, key, value): 
        self[key] = value 
  
# Main Function 
dict_obj = my_dictionary() 
  
dict_obj.add(1, 'Geeks') 
dict_obj.add(2, 'forGeeks') 
  
print(dict_obj)