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Sam Dale
6,136 PointsMain Loop of this Code Example
Hi there. In the end of his code, Kenneth puts the following lines of code in his project:
def welcome():
start = input("Press enter/return to start or q to quit ").lower()
if start == 'q':
sys.exit()
done = False
while True:
clear()
welcome()
play(done)
What I'm unclear about is why he does this, since that while True loop will never be implemented. The repeating code is in the play loop which calls on itself if it should run again. To implement the same functionality, I did:
clear()
print("\nWelcome to the Letter Game\n")
choice = input("Begin game (Y/n): ").lower()
if choice != 'n':
play(False)
Is the while True loop that calls play(done) a fail proof if we were to change the play method? Thanks!
1 Answer
Chris Freeman
Treehouse Moderator 68,468 PointsI agree that the while loop will not run twice because play either runs itself again or hard exits. Given this, it isn't clear why the while loop was necessary. Your code suffices to get the job done. My speculation is in developing the play function, until the if done section was completed, the while loop would have run if instead of a sys.exit(), a simple return was used. Good question!