how to check if json has a key python

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Maria José
04 Sep 2017
1import json
2
3studentJson ="""{
4   "id": 1,
5   "name": "john wick",
6   "class": 8,
7   "percentage": 75,
8   "email": "jhon@pynative.com"
9}"""
10
11print("Checking if percentage key exists in JSON")
12student = json.loads(studentJson)
13if "percentage" in student:
14    print("Key exist in JSON data")
15    print(student["name"], "marks is: ", student["percentage"])
16else:
17    print("Key doesn't exist in JSON data")
source
Romane
30 Apr 2018
1if 'to' not in data:
2    raise ValueError("No target in given data")
3if 'data' not in data['to']:
4    raise ValueError("No data for target")
source
Lila
05 Oct 2018
1json_string = """{"a": 1, "b": 2, "c": 3}"""
2a_dictionary = json.loads(json_string)
3
4b_in_dict =  "b" in a_dictionary
source
Maja
28 Jul 2019
1b_in_dict =  "b" in a_dictionary
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