Results for “PRIMM”

Showing 21–30 of 34

  1. Challenge

    Strings don't change

    code[0] = "X" stops with a TypeError, because Python strings can't be changed. Predict the crash, find out what methods and slices really give, build a new string instead, then swap a letter in the…

    Fix the code Easy 3 stages strings immutability slicing TypeError

  2. Challenge

    Decimal comma

    An operator types 42,5 and float() crashes with a ValueError. Predict it, find out why, accept both commas and dots with replace(), then read pressures written like 1 013,25.

    Fix the code Easy 3 stages strings replace float ValueError

  3. Challenge

    input() returns text

    A crew count read with input() crashes when 1 is added to it. Predict the crash, find out what input() really returns, fix it with int(), then write a packing tool that reads two numbers.

    Fix the code Easy 3 stages input int TypeError type conversion

  4. Challenge

    Unit mix-up

    A trajectory total adds a leg in miles to legs in kilometres. Predict the total, find the leg that doesn't fit, convert it with a named constant, then convert a lander's feet per second to metres.

    Fix the code Easy 3 stages units conversion constants debugging

  5. Challenge

    Wrong average

    An average of three hull temperatures comes out at 47 °C when every sensor reads about 21. Predict it, find where the brackets are missing, fix it, then work out an average speed.

    Fix the code Easy 3 stages order of operations brackets average debugging

  7. Challenge

    Magic numbers

    Turn the bare 9.81 and 1000 in a weight report into named constants without changing the output, then write a Mars version with constants from the start.

    Fix the code Easy 3 stages constants refactoring variables clean code

  9. Challenge

    Readings that won't add

    Two sensor readings add up to 12080 instead of 200 because they arrived as text. Predict it, find out why and fix it with int(), then add decimal readings with float().

    Fix the code Easy 3 stages type conversion int float str

  10. Challenge

    Round or cut?

    int() cuts the decimals off, round() rounds, and round(2.5) gives 2. Predict the difference, investigate Python's rounding rule, then round a fuel reading two ways.

    Write the code Medium 3 stages int round rounding type conversion