How to return to a previous loop in python
Try nesting the first while loop inside of the second. It'll run your calculation code first, check to see if you'd like to do another, and then return to the top of the Show
Like this:
Hope that helps Depending on what you're trying to do, and where this particular code appears in your program, it's usually advised to wrap your code inside of functions. That way, it doesn't automatically run when you import your module. You have to call a function to make the code run. If you want to make this an executable script, you'd want to wrap the main loop code in a e.g.:
Using breakThe
Using continue
break and continue visualizedWhat happens when we run the code from this Python file?
ResultsSee if you can guess the results before expanding this section. Using break and continue in nested loops.Remember,
Loop Control in while loopsYou can also use
Be careful that your condition will eventually be met, or else your program will get stuck in an infinite loop. For production use, it’s better to use asynchronous programming. Loops and the return statementJust like in functions, consider the
How do you go back a loop in Python?The continue statement in Python returns the control to the beginning of the while loop. The continue statement rejects all the remaining statements in the current iteration of the loop and moves the control back to the top of the loop. The continue statement can be used in both while and for loops.
How do you call a former loop in Python?The following is a very common. use add line words = [] between print( ... ) and option = .... Or you can add it to the top of the outer loop, b/c continue will send execution there before entering the inner loop.
How do you go back to a specific line in Python?Python does not allow you to go back to a specific line number, and even if it did, you should not take advantage of that capability because it results in unmaintainable programs.
Can you return a for loop?It is good practice to always have a return statement after the for/while loop in case the return statement inside the for/while loop is never executed. Otherwise, a compile-time error will occur because the method cannot return nothing (unless it has the Java reserved word "void" in the method header).
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