JuniorTheoryCommon

What does the program print?

Python

import json

data = {"id": 1, "tags": ("a", "b")}
back = json.loads(json.dumps(data))
print(back["tags"], back == data)

['a', 'b'] False

Expecting ('a', 'b') True, as if JSON kept Python types: JSON has only arrays, so dumps writes the tuple as one and loads reads it back as a list.
Expecting True because the values look the same: a list never equals a tuple, ['a', 'b'] == ('a', 'b') is False, so the two dicts differ.

JuniorTheoryCommon

Python

import json

data = {"id": 1, "tags": ("a", "b")}
back = json.loads(json.dumps(data))
print(back["tags"], back == data)

['a', 'b'] False

Expecting ('a', 'b') True, as if JSON kept Python types: JSON has only arrays, so dumps writes the tuple as one and loads reads it back as a list.
Expecting True because the values look the same: a list never equals a tuple, ['a', 'b'] == ('a', 'b') is False, so the two dicts differ.