The Boolean "NOT" Operator in Python

There are times when you will want to flip a boolean value from true to false or from false to true. In order to do that in Python, you can use the Python not operator.

Note that when putting a not operator in front of True that the output will be false:

print(not True)

> False

You will also notice that the same thing can be done with using a not operator in front of a False value:

print(not False)

> True

This will also work with an expression that results in a boolean value:

value = 5
print(not value < 6)

> False

You will see above that even though the expression value < 6 is true, False is printed because of the not operator being used.

Practice: NOT Operations

Based on the information above. Complete the following steps:

1. Create a variable named value_1 and assign it a numeric value greater than 50.

2. Create a variable named value_2 and assign it a numeric value less than 100.

3. Print an expression which evaluates to True using the value_1 variable and use the not operator so that False is printed in the terminal.

4. Print an expression which evaluates to False using the value_2 variable and use the not operator so that True is printed in the terminal.

   HINT*: Click here for a hint

   > False

   > True

   SOLUTION*: Click here for an example solution

   value_1 = 65
   value_2 = 85
   print(not value_1 > 50)
   print(not value_2 > 100)
   

When the above is completed and you are getting the proper output, you are ready to move onto the next exercise!