Absolute Free PCED Exam Practice for Comprehensive Preparation 

data = json.load(open('data.json'))

if len(data['likes']) > 0:

    print("Data is valid")

else:

    print("Data is invalid")

data = json.load(open('data.json'))

if all(isinstance(x, int) for x in data['likes']):

    print("Data is valid")

else:

    print("Data is invalid")

data = json.loads('data.json')

if isinstance(data['likes'], list):

    print("Data is valid")

else:

    print("Data is invalid")

data = json.load(open('data.json'))

if 'likes' in data.keys():

    print("Data is valid")

else:

    print("Data is invalid")