python dictionary add key-value pair

dict = {'key1':'value_one', 'key2':'value_two'}  
dict['key3'] = 'value_three'

d = {'key': 'value'}
print(d)
# {'key': 'value'}
d['mynewkey'] = 'mynewvalue'
print(d)
# {'key': 'value', 'mynewkey': 'mynewvalue'}

dict = {'key1':'geeks', 'key2':'for'} 
print("Current Dict is: ", dict) 
  
# adding key3 
dict.update({'key3':'geeks'}) 
print("Updated Dict is: ", dict) 
  
# adding dict1 (key4 and key5) to dict 
dict1 = {'key4':'is', 'key5':'fabulous'} 
dict.update(dict1) 
print(dict) 
  
# by assigning  
dict.update(newkey1 ='portal') 
print(dict)