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  3. Python Data Science Toolbox (Part 1)

Exercise

Error handling by raising an error

Another way to raise an error is by using raise. In this exercise, you will add a raise statement to the shout_echo() function you defined before to raise an error message when the value supplied by the user to the echo argument is less than 0.

The call to shout_echo() uses valid argument values. To test and see how the raise statement works, simply change the value for the echo argument to a negative value. Don't forget to change it back to valid values to move on to the next exercise!

Instructions

100 XP
  • Complete the if statement by checking if the value of echo is less than 0.
  • In the body of the if statement, add a raise statement that raises a ValueError with message 'echo must be greater than or equal to 0' when the value supplied by the user to echo is less than 0.