Concepts: Booleans

Booleans in Python

A "boolean" is a type of data that can only have two possible values. Conceptually, many things can be reduced to a pair of possibilities:

• yes / no
• on / off
• true / false
• selected / not selected
• moving / not moving
• heads / tails

Python represents booleans with two values: True and False. Comparison operations in Python result in a boolean value being returned.

The most common comparison operation is checking for equality using the equality operator (==). The equality operator checks if the values to the left and right of it are equal to each other.

After the comparison is done, a True value is returned if the two values being compared are the same and False if they are not:

Note the examples below:

print(2 == 2)

> True

print(2 == 7)

> False

print(13.66 == 13.66)

> True

print("Hello" == "Hello")

> True

print("Hello" == "Hi")

> False

Practice: Booleans

Based on the information above. Complete the following steps:

1. Create a variable named does_string_equal_number and assign it the result of comparing the number value 5 with the string value "5".

2. Print the boolean value in the does_string_equal_number variable.

3. Create a variable named do_numbers_match and assign it the result of comparing the number value 5 and the number value 5.

4. Print the boolean value in the do_numbers_match variable.

5. Create a variable named does_casing_match and assign it the result of comparing the string value "Hello" and the string value "hello".

6. Print the boolean value in the does_casing_match variable.

   HINT*: Click here for a hint

   > False

   > True

   > False

   SOLUTION*: Click here for an example solution

   does_string_equal_number = 5 == "5"
   print(does_string_equal_number)
   do_numbers_match = 5 == 5
   print(do_numbers_match)
   does_casing_match = "Hello" == "hello"
   print(does_casing_match)
   

When you have completed the above and understand that boolean values are returned from comparison operations, you are ready to go to the next exercise!