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# Why/How does the list (guesses) "reset" after each run of game()?

So we create the variable list guesses and set it as an empty list. When we run game() we are adding the user's incorrect guesses to the list and we run a while loop until the list contains 5 or more incorrect guesses. This much I understand, but I'm stuck on why the list becomes empty again after each run of game(). Is this because changes to variables do not stay when they're changed in a loop?

```def game():
# generate a random number between 1-10
secret_num = random.randint(1, 10)
guesses = []

while len(guesses) < 5:
try:
# get a number guess from player
guess = int(input("Guess a number between 1 and 10: "))

except ValueError:
print("{} isn't a number!".format(guess))

else:
# compare guess to secret number
if guess == secret_num:
print("you got it! My number was {}".format(secret_num))
break
elif guess < secret_num:
print("My number is higher than {}".format(guess))
else:
print("My number is lower than {}".format(guess))
guesses.append(guess)
else:
print("You didn't get it! My number was {}".format(secret_num))

play_again = input("Do you want to play again? Y/n ")
if play_again.lower() != 'n':
game()
else: print("Bye!")

game()
```

With my limited knowledge, I expected guesses to contain the guesses from previous runs of game() since we never explicitly "emptied" it, but this is not the case. Any help is appreciated.