Every value is an object with a type, and the type decides which operations are legal. Plus: when type casting works and when it doesn't.
Short drills on what this video just taught. Write the code, run the checks, and reveal the answer only if you are stuck.
Find out what type Python assigns to the value 9.0 by asking Python directly, with the built-in introduced in the video.
Assign the type object Python reports to value_type.