Exercise for reference: 

Please complete the script so that it prints out the value of key b  .

d = {"a": 1, "b": 2}

Answer: 

d = {"a": 1, "b": 2}
print(d["b"])

Explanation: 

As you see, accessing dictionary values follows the same syntax as accessing list items. The difference is that lists have indexes, while dictionaries have keys that you create by yourself.