def main(): query = 'SELECT * FROM submissions WHERE ' \ 'gender IS NOT NULL and ' \ 'height_in IS NOT NULL and previous_weight_lbs IS NOT NULL and current_weight_lbs IS NOT NULL and media_json IS NOT NULL;' m = DatabaseManager(DATABASE_PATH) submissions = [Submission(x) for x in m.query(query)] json_dump_str = Submission.submission_list_to_json(submissions) f = open('json_dump.json', 'w') f.write(json_dump_str) print "Wrote ", len(submissions), "to disk."