How can JSON data with null value be converted to a dictionary

Question

{
  \"abc\": null,
  \"def\": 9
}

I have JSON data which looks like this. If not for null (without quotes as a string), I could have used ast

Answer 1

You should use the built-in json module, which was designed explicitly for this task:

>>> import json
>>> data = '''
... {
...   "abc": null,
...   "def": 9
... }
... '''
>>> json.loads(data)
{'def': 9, 'abc': None}
>>> type(json.loads(data))

>>>

By the way, you should use this method even if your JSON data contains no null values. While it may work (sometimes), ast.literal_eval was designed to evaluate Python code that is represented as a string. It is simply the wrong tool to work with JSON data.