The computer picks a secret number from 1 to 100, the player guesses, and the computer says higher or lower until they get it. You will build it as three functions:

check_guess(guess, secret) compares a guess with the secret.
play(secret) runs one round and returns how many guesses it took.
A main program that plays rounds until the player has had enough, and reports their best.

The secret comes from Python's random module: random.randint(1, 100) gives a random whole number from 1 to 100 inclusive. When you press Check, the checker quietly makes randint return a number it chooses, so it can test your game properly.

import random

print(random.randint(1, 100))
print(random.randint(1, 6))