Results for “for”

Showing 21–30 of 202

  2. Challenge

    Copy-pasted blocks

    …status display was written in a hurry: one block of code for tank A, then the same block copied for B and C. It works, but every change has to be made three times, and the next tank means a fourth…

    Fix the code Medium 2 stages refactoring for loop tuples lists

  3. Challenge

    Countdown with holds

    …, the countdown ends like this: T-5 T-4 SCRUB at T-4 Check for the scrub before the hold, break after the scrub line, and use a flag to decide about Liftoff! after the loop.

    Write the code Easy 2 stages for loop range negative step in

  4. Challenge

    Numbered checklist

    …pairs of a number and an item. Unpack them in the loop: for number, item in enumerate(checklist, start=1): . Done or not yet The crew has done the first two items. Add completed = 2 under the list…

    Write the code Easy 2 stages for loop enumerate start lists

  5. Challenge

    Manifest line

    …cartridges | 18.5 kg Three names on the left of = , one for each value, in order. A new field The manifest now also records the module each item is stowed in. The starter code stops with ValueError…

    Write the code Easy 2 stages tuples unpacking ValueError formatting

  9. Challenge

    Silent branch

    status_light() returns None for Scrub because that branch sets a variable but never returns it. Predict the last line, find which statuses give None, make every path return, then write a function…

    Fix the code Easy 3 stages functions return None branches

  10. Challenge

    Never-ending wait

    A while loop waits for the antenna signal but never moves on to the next reading, so it never ends. Predict it, find the stuck counter, fix it, then write a wait that gives up when the readings run…

    Fix the code Easy 3 stages while loop infinite loop counter and