Results for “len”

Showing 21–30 of 45

  1. Challenge

    Sort by a field

    …meals 31.3 kg CO2 scrubber cartridges 25.0 kg Rice and lentils 18.5 kg Water filter cartridges 3.4 kg Tablet computers 2.4 kg Spare cabin fan Write mass(item) , which returns item["mass_kg"] , and…

    Write the code Easy 2 stages functions sorted key reverse

  2. Challenge

    Flight software review

    A 40-line pre-burn check has five bugs: a syntax error, a type error, a wrong key, an index out of range and a reversed decision. Read each error to fix the four that crash, then find the one that…

    Fix the code Hard 2 stages project debugging SyntaxError TypeError

  3. Challenge

    Telemetry pipeline

    A small but complete data pipeline: read the telemetry CSV, reject rows with unknown sensors or broken values and say why, flag readings outside each sensor's limits, and save a JSON summary for the…

    Write the code Hard 3 stages project csv json files

  4. Challenge

    Statistics module

    Refactor the temperature summary: delete the hand-written mean() and median() and use statistics.mean() and statistics.median() instead, then add the standard deviation and handle passes with too few…

    Fix the code Easy 2 stages statistics mean median stdev

  5. Challenge

    input() returns text

    …packing tool. Ask for the crew size, then the mission length in days, both whole numbers, and print the meals and water to pack: 3 meals and 2.5 litres of drinking water per person per day. For 4 crew…

    Fix the code Easy 3 stages input int TypeError type conversion

  6. Challenge

    Launch schedule digest

    Parse the launch schedule from JSON, keep the launches still to come, sort them by their window and print a digest line for each with the time left and any hold, then switch the digest to the live…

    Write the code Medium 3 stages project json datetime timedelta

  7. 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

  8. Challenge

    Read the traceback

    A Python program stops with a traceback. Read it from the bottom up to find the error, the function and the line, fix the bug there, then follow a longer traceback through four calls to a second bug.

    Fix the code Easy 2 stages errors traceback KeyError TypeError

  9. Challenge

    Parser function

    Move the feed parser from "Line to record" into parse_line(line), which returns the record dict, then let it return None for blank, comment and damaged lines so the loop only keeps real records.

    Fix the code Medium 2 stages functions return dictionaries None

  10. 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