import json with open("./api/metadata.json", "r") as f: data = json.load(f) keys = ['url', 'title', 'album', 'artist', 'year', 'duration', 'albumArtist', 'thumbnail'] category = [] for i in range(len(data)): if 8 != len(data[i].keys()): print(data[i]) # data[i]["thumbnail"] = False # with open("./api/metadata.json", "w") as f: # json.dump(data, f, indent=4)