Use break and continue to do this. Breaking nested loops can be done in Python using the following: for a in range(...): for b in range(..): if some condition: # break the inner loop break …

else: continue # Continue if the inner loop wasn't broken. break # Inner loop was broken, break the outer. This uses the for / else construct explained at: Why does python use 'else' after for …

Nov 15, 2016 · A break will only break out of the inner-most loop it's inside of. Your first example breaks from the outer loop, the second example only breaks out of the inner loop. To break out …

Nov 11, 2024 · Don't use while True and break statements. It's bad programming. Imagine you come to debug someone else's code and you see a while True on line 1 and then have to …

Jun 21, 2021 · A simple solution available on Python 3.8+ is to use the walrus operator (assignment expression for boring types) and just have the loop run until the result is valid, …

It still won't break based on the value of test, but this is a perfectly valid loop with a reasonable initial condition. Further boundary checking could help you to avoid execution of a very long …

May 25, 2024 · Because break cannot be used to break out of an if statement -it can only break out of loops. That's the way Python (and most other languages) are specified to behave. …

Apr 8, 2010 · Most times you can use a number of methods to make a single loop that does the same thing as a double loop. In your example, you can use itertools.product to replace your …

Actually, I suppose you are looking for a code that runs a loop until a key is pressed from the keyboard. Of course, the program shouldn't wait for the user all the time to enter it. If you use …

Lots of answers here, but I haven't seen this mentioned yet: Most of the "dangers" associated with using break or continue in a for loop are negated if you write tidy, easily-readable loops.