1li = [1,2,'a','b']
2if 'hello' not in li:
3 print('hello is not in the list')
1arr = ['a','b','c','d','e','f']
2
3if 'g' not in arr:
4 print('g is not in the list')
1today = 'Sunday'
2
3if not today=='Sunday':
4 print('Go to work.')
5else:
6 print('Take rest.')