Verify if a String is JSON in python?

Question

I have a string in Python, I want to know if it is valid JSON.

json.loads(mystring) will raise an error if the string is not JSON but I don't want to catch an exception.

I want something like this, but it doesn't work:

if type(mysrting) == dict:     myStrAfterLoading = json.loads(mystring) else:     print "invalid json passed" 

Do I have to catch that ValueError to see if my string is JSON?

Answer 1

The correct answer is: stop NOT wanting to catch the ValueError.

Example Python script returns a boolean if a string is valid json:

import json  def is_json(myjson):     try:         json_object = json.loads(myjson)     except ValueError as e:         return False     return True  print(is_json('{}'))              # prints True print(is_json('{asdf}'))          # prints False print(is_json('{"age":100}'))     # prints True print(is_json('{'age':100 }'))    # prints False print(is_json('{"age":100 }'))    # prints True