Does python's break function apply to all loops, or just the one that contains the function?-CodePudding

So I want to make a program in python 3. I have a loop, and noticed that I wanted to put a break function break to exit an inner loop. I don't want to exit the outer loop however, and want to know what it does. (I'm making hangman, the word guessing game. I also know my code currently sucks.)

while True:
  letter = input("Choose a letter! ").strip().lower()
  for i in myword: #myword is a random word generated earlier.
    if i == "letter":
      message = f"You found the letter {i}"

Can someone help explain what the break will do? I changed it so that break doesn't have brackets.

CodePudding user response：

Only the innermost loop. So if you placed a break within the for loop, such as,

while True:
  letter = input("Choose a letter! ").strip().lower()
  for i in myword: #myword is a random word generated earlier.
    if i == "letter":
      message = f"You found the letter {i}"
      break

your while loop will still iterate.

A small program to demonstrate this could be:

y = 0
while (y < 10):
    for i in range(10):
        print(y)
        y  = 1
        if (y > 5):
            break

The program still spits out values 0 through 9 and continues the while loop even though we told it to break at y > 5. It only breaks from the inner for loop and the while loop continues.

CodePudding user response：

You can use break in Python in all the loops: while, for, and nested. If you are using it in nested loops, it will terminate the innermost loop where you have used it, and the control of the program will flow to the outer loop.

here is a small example

y = 0 while (y < 10): for n in range(10): print(y) y = 1 if (y > 5): break