Dict: get() not returning 0 if dict value contains None

Question

python dict if a key having value None and when called get() returns NoneType

ex_dict = {"test" : None} ex_dict.get('test', 0)

In above example it should return 0 but it wont.

Can any explain why it behave like that.

Answer 1

No, it shouldn't. If test key is not found in the ex_dict dictionary it should return 0. But, because it exists it will return None

ex_dict = {"test" : None}
print type(ex_dict.get('test', 0))  # <class 'NoneType'>, 'test' exist, return None

print(ex_dict.get('hello', 0))  # prints 0, 'hello' isn't a key inside ex_dict

Answer 2

The None response in ex_dict.get('test', 0) is ok because the "test" key exists and has None value. For instance, if you try the same with ex_dict.get("non_existing_key", 0) it returns 0.