Results for “function”

Showing 21–30 of 39

  2. Challenge

    Validate a cargo record

    …with it, not just the first problem. Write the check as a function that collects the problems, then add a rule for the ID format. Missing fields and negative mass Write validate_cargo(item) , which…

    Write the code Medium 2 stages functions return lists validation

  3. Challenge

    Prove the fix

    …it stays fixed? Six months from now someone will tidy the function, and log=[] looks so much simpler than the None check. Write the test that proves the fix: it has to pass now and fail on the old…

    Write the code Medium 2 stages testing assert regression tests default values

  4. Challenge

    Test the parser

    Write assert checks for parse_line() from "Parser function": the whole record for a good line first, then None for a blank line, a comment and a line with a missing field, so a broken parser can't…

    Write the code Medium 2 stages testing assert parsing None

  5. Challenge

    Test the error

    …with a ValueError . That refusal is part of what the function promises, as much as the arithmetic is, and like the arithmetic it can quietly break. Write the test that keeps it honest. The hidden…

    Write the code Medium 2 stages testing assert try except

  6. Challenge

    Unit converter

    Write convert(), which looks a unit pair up in a table of factors, works the other way round by dividing, and refuses unknown units or missing pairs with a clear ValueError, then extend the table with…

    Write the code Medium 2 stages project dictionaries tuples as keys functions

  7. Challenge

    Command parser

    Write parse_command(), which turns typed commands such as burn 12.5 or set mode safe into tuples and raises ValueError with a reason for anything malformed, then run a whole batch of commands and…

    Write the code Medium 2 stages project parsing strings split

  8. Challenge

    Config loader

    Load the downlink module's JSON settings over a copy of the defaults, check each value's type and range and report every problem in one go, then wrap it all in a load_config() that never crashes, even…

    Write the code Hard 3 stages project json configuration validation

  9. Challenge

    Manifest validator

    Write problems(item), which lists everything wrong with one cargo item: missing fields, a mass that isn't a number, is 0 or is over the limit. Print a pass or fail line per item, then catch duplicate…

    Write the code Medium 2 stages project validation dictionaries functions

  10. Challenge

    Live T-minus

    Extend the formatter from "Duration formatter": work out the seconds left from the launch time and datetime.now(timezone.utc) instead of a number typed by hand, then turn it into a countdown() that…

    Write the code Medium 2 stages datetime datetime.now timezone countdown