This is a Python interpreter for boolean logic expressions. It allows you to evaluate expressions containing boolean operators (AND, OR, NOT) and variables with boolean values. The interpreter reads ...

Python boolean data type has two values: True and False. Use the bool() function to test if a value is True or False. The falsy values evaluate to False, while the truthy values evaluate to True.

The ending value (4 in this case) in the range() function isn't printed because it's excluded from the range. while Loop The while loop is used when you're uncertain how long the loop will run.