You see, in the case of or, as long as one clause is true, the entire expression is true.It is only when both clauses are false that the entire expression is false. We refer to clauses joined by and ...

Boolean expressions can also compare text, for example to check if a password is correct. Consider this Python (3.x) program, which repeats if a password has been entered incorrectly: ...

I recently switched to using python 2.5 from 2.4, one of the new language level features in 2.5 is conditional expressions. Which I thought was odd because I was already writing conditional ...

We can use the Boolean expression NOT to test for a false condition. Consider this simple Python (3.x) program that prints out all numbers from 0 to 100: stop = False count = 0 while not ...