Bug report

When json encounters a integer as a key of a dictionaries, it converts it to the string representation of that int, which can cause problems.

import json
a = json.dumps({1:'a'})
b = json.loads(a)
b
{'1': 'a'}
b[1]
Traceback (most recent call last):
File "", line 1, in
KeyError: 1

Your environment

• CPython versions tested on:
  python 3.10.4

• Operating system and architecture:
  ubuntu x86-64
  GCC 9.4.0