What does != do/mean in python

Question

I see this code in my python reference guide, but no description.

I am asked a question like what does this do:

print 2 and 1-2 !=3

It returns True, but why?

Answer 1

In, Python != means "not equal to" and is a logical comparison. Break down the logical expression here:

2 and 1 - 2 != 3 

2 and -1 != 3 

2 and True 

True

To know more about this you can have a look at the following video tutorial:-