Can anyone explain me this ....pls

Question

nums = [1, 2, 3]
print(not 4 in nums)
print(4 not in nums)
print(not 3 in nums)
print(3 not in nums)

Output -

True
True
False
False

Answer 1

'not' operator does the opposite of any boolean type variable.

not 4 in nums:

checks if '4' is in nums. In this case it isn't. So the condition returns false. The 'not' keyword then flips the value . As a result , you get true.

4 not in nums :

checks if the value '4' is not in nums. In this case 4 is not in nums and thus you get true printed and vice versa

Answer 2

Outputs:
1.4 is not in the list so True.
2. Same to 1st output.
3. 3 in the list. So it print False.
4. Same to 3rd output

Answer 3

Well it seems,
•prints true because there is not 4 in the array(nums)
•the same condition
•prints false because there is 3 in the array(nums), so the condition fails.
•similary

Answer 4

Thanks a lot Mohan 333 and Ćheyat

Answer 5

Ćheyat Your explanation is very good. I like it. Thanks.