The break Statement: The break statement in Python terminates the current loop and resumes execution at the next statement, just like the traditional break found in C. The most common use for break is when some external condition is triggered requiring a hasty exit from a loop. If I write code creating an infinite loop, with my new Excel, the Ctrl + Break no longer works. The loop that does not stop executing and processes the statements number of times is called as an infinite loop. How to quit when I run into an infinite loop in terminal window? Infinite Loop. Click here to let us know! Infinite Loops: break statement can be included in an infinite loop with a condition in order to terminate the execution of the infinite loop. This can be done with break keyword. In the following example, an integer random number will be generated within the infinite while loop. Note: if you have nested loops (loop inside another loop), break only exits the loop it directly resides in, and the code continues in the outer loop. You could write: The loop condition is True, which is always true, so the loop runs repeatedly until it hits the break statement. So far, we were introduced to various types of loops, learning what structures they have and how they are applied. One of the most common errors you can run into working with while loops is the dreaded infinite loop. An infinite loop is a loop that repeats indefinitely and does not terminate. What break does is to immediately quit a loop (any C language loop, not just for loops). This is called an infinite loop, which can cause your program to freeze. Again the inner for loop will be iterated with i equals 13. (the loop variable must still be incremented). Take a look at the example below: Each time through, it prompts the user with an angle bracket. Let’s look at them in detail in this tutorial. It just prompts again no matter what I type. An infinite loop must have an exit condition that has to be executed once the goal of the program has been met. This is an infinite loop. Start an infinite loop. This loop is an infinite loop. As a trained professional you know the value of practice, so try this out on a toy project before you attempt a rescue operation at work. Get user input. The break statement can be used in both while and for loops… For example, suppose you want to take input from the user until they type done. This loop is obviously an infinite loop because the logical expression on the while statement is simply the logical constant True: n = 10 while True: print (n, end=' ') n = n - 1 print ('Done!') Here's a sample run: This way of writing while loops is common because you can check the condition anywhere in the loop (not just at the top) and you can express the stop condition affirmatively ("stop when this happens") rather than negatively ("keep going until that happens."). link brightness_4 code // C program to illustrate // using break statement The continue statement works similar to break statement. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. The break statement is used mainly in in the switch statement. If input is 0, stop the loop. In this tutorial, you'll learn about indefinite iteration using the Python while loop. Now, we need to understand what an infinite loop is, when it occurs, and how we can break it using the break operator.. Video: Infinite Loops with Break Share. break terminates the execution of a for or while loop. 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