The image below illustrates the logical process flow of a Python break statement. When placed into an inner loop, the break statement only causes the inner loop to be terminated, while the outer loop will continue to run. We can also place break statements into nested loops. This means that the loop will terminate and your program will move on to any statements that follow the loop. This means that the entire loop is terminated and no further iteration of the loop will occur. The Python break statement breaks a the flow of an entire loop. Python Break Statement: End a Loop Entirely In the next three sections, you’ll learn how to use these control statements to modify the behaviour of your loops. Rather than relying on definite or indefinite iteration, we can use these control statements to change the behaviour (or even entirely stop) the flow of a loop. How Else Can We End Loops? Python flow control statements such as break, pass, and continue allow us to control how a Python loop works. Here, we use the augmented assignment operator to increment a value in Python, each time a while loop iterates. Let’s take a look at a simple example: # A Simply Python while loop This can even mean that a while loop repeats an infinite number of times, if a condition is never false. They repeat as often as a condition remains true. While Python for loops occurred a definite number of times, Python while loops repeat an indefinite number of times. To learn more about Python for loops, check out my in-depth tutorial on them. Similarly, we can loop over an iterable item such a list: # A Simple Python for loop Let’s take a look at a very simply example: # A Simple Python for loop Python For Loop ExampleĪ Python for loop is a definite iteration, meaning that an action is repeated for a set number of times. Python while loops, on the other hand, are examples of indefinite iteration, meaning that they repeat an indefinite number of times, while a given condition remains true. Python loops allow us to automate and repeat tasks either a defined number of times or while a condition is met.įor example, Python for loops are examples of definite iteration, meaning they repeat a certain number of times. Python Pass Statement: Pass Over a Condition.Python Continue Statement: End an Iteration.Python Break Statement: End a Loop Entirely. In above code if the condition checked for if became True for any value of i then the break statement will be executed terminating the while loop and the else part of the code will be skipped. You can also observe the else part of the code is not executed once break statement is encounterd and execution comes out of the loop.Ģ Checking if input number is prime number or not num=int(input("Enter the number you want to check : ")) But when continue is used in place of break the printing of 3 is skipped but the loop continues again so 4 and 5 are printed. In the codes give below, as soon as break is encountered the execution comes out of the loop, so 3,4 and 5 are not printed. In case of continue the execution returns to the starting of the loop skipping the rest of the statements ( after continue ) and continues again. When break statement is encountered the execution comes out of the loop. I am outside the loop Break and continue in a while loop Python while loop with else break & continue to execute code blocks based on condition True or FalseĬode wihin else will execute once the loop is over
0 Comments
Leave a Reply. |