check if json has key python code example

Example 1: if the json object has the key python3

import json

studentJson ="""{
   "id": 1,
   "name": "john wick",
   "class": 8,
   "percentage": 75,
   "email": "[email protected]"
}"""

print("Checking if percentage key exists in JSON")
student = json.loads(studentJson)
if "percentage" in student:
    print("Key exist in JSON data")
    print(student["name"], "marks is: ", student["percentage"])
else:
    print("Key doesn't exist in JSON data")

Example 2: python json check if key exists

import json
  if 'id' not in dest:
      dest['id'] = -1
    targetId = dest['id']

Example 3: python check if key exist in json

json_string = """{"a": 1, "b": 2, "c": 3}"""
a_dictionary = json.loads(json_string)

b_in_dict =  "b" in a_dictionary

Example 4: how to check if json has a key python

b_in_dict =  "b" in a_dictionary