PyThon3 dictionary operations

Code:

dict_data = {"a":"1", "b":2}
dict_data["a"] = 2
dict_data[2] = "b"
print(dict_data)
print(dict_data.keys())
print(dict_data.values())
print(dict_data.get("a"))
dict_data.clear()

operation result:

{'a': 2, 'b': 2, 2: 'b'}
dict_keys(['a', 'b', 2])
dict_values([2, 2, 'b'])
2
{}