Results for “PRIMM”

Showing 1–10 of 32

  3. Challenge

    Catch what you expect

    A bare except: reports every fuel reading as bad, because it also catches a NameError from a typo. Predict the last line, find the hidden error, catch only ValueError and fix the typo, then write a…

    Fix the code Medium 3 stages errors try except ValueError

  4. Challenge

    Launch counter crash

    record_launch() adds 1 to a global counter and stops with an UnboundLocalError. Predict it, find out why Python treats the name as local, fix it by passing the count in and returning the new one, then…

    Fix the code Medium 3 stages functions scope UnboundLocalError global

  5. Challenge

    Shadowed fuel

    refuel() assigns to fuel_kg inside the function, creating a local variable and leaving the global fuel unchanged. Predict the last line, compare both values, fix it by returning the total, then write…

    Fix the code Medium 3 stages functions scope local variables global variables

  6. Challenge

    Shared default list

    add_sample(sample, log=[]) remembers samples from earlier calls, because the default list is created once and shared. Predict it, prove the calls share one list, fix it with None as the default, then…

    Fix the code Medium 3 stages functions default values mutable defaults None

  8. Challenge

    Changed the caller's list

    add_reading() appends to the list it receives, so the caller's stored readings change too. Predict the first line, prove both names share one list, fix it by returning a new list, then write a filter…

    Fix the code Medium 3 stages functions lists mutation return

  9. Challenge

    Prints instead of returns

    to_kelvin() prints its result instead of returning it, so the caller gets None. Predict the last line, find out what the function gives back, fix it with return, then write a conversion function that…

    Fix the code Easy 3 stages functions return print None

  10. 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