This script will read a file and either pass the file as being a valid JSON file,

or die a horrible death. But for all practical reasons, it tells me if the error is in the file or the program that I am trying to load the file into.

$ checkjson test.json

That’s all you need to validate JSON, but it can easily be modified to validate YAML, as well.

import os

import sys

import json

if len(sys.argv) > 1:

if os.path.exists(sys.argv[1]):

file = open(sys.argv[1], "r")

json.load(file)

file.close()

print("Validate JSON!")

else:

print(sys.argv[1] + " not found")

else:

print("Usage: checkjson.py <file>")