import json def main(args=None): data = [ {"time": 1394984189, "name": "cpu", "value": 12}, {"time": 1394984189, "name": "cpu", "value": 19} ] print(json.dumps(data, indent=4)) json.dump(data, open('../datafiles/example3.json', 'w'), indent=4) if __name__ == '__main__': main()