Type another while statement as shown. Select the input and if statements in lines 28-32. Press Tab to indent the selected block. As long as the user doesn't answer the question correctly (with "y" or ...

"Most programs are written to solve an end user’s problem. To do so, you usually need to get some information from the user. For a simple example, let’s say someone wants to find out whether they’re ...

So it’s possible that the body of any given while loop might never be executed. If, at the start, the while condition is false, Python will skip past the loop entirely! Input validation with while ...

Note: We use the same examples to demonstrate how to use for loops and while loops. However, for some situations, using while loops may be more appropriate than using for loops or vice versa. It is ...