1dict1 = {'color': 'blue', 'shape': 'square'}
2dict2 = {'color': 'red', 'edges': 4}
3
4dict1.update(dict2) #if a key exists in both, it takes the value of the second dict
5# dict1 = {'color': 'red', 'shape': 'square', 'edges': 4}
6# dict2 is left unchanged