16.7: Exercises

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Code examples from this chapter are available from http://thinkpython2.com/code/Time1.py; solutions to the exercises are available from http://thinkpython2.com/code/Time1_soln.py.

Exercise \(\PageIndex{1}\)

Write a function called mul_time that takes a Time object and a number and returns a new Time object that contains the product of the original Time and the number.

Then use mul_time to write a function that takes a Time object that represents the finishing time in a race, and a number that represents the distance, and returns a Time object that represents the average pace (time per mile).

Exercise \(\PageIndex{2}\)

The datetime module provides time objects that are similar to the Time objects in this chapter, but they provide a rich set of methods and operators. Read the documentation at http://docs.python.org/3/library/datetime.html.

Use the datetime module to write a program that gets the current date and prints the day of the week.
Write a program that takes a birthday as input and prints the user’s age and the number of days, hours, minutes and seconds until their next birthday.
For two people born on different days, there is a day when one is twice as old as the other. That’s their Double Day. Write a program that takes two birth dates and computes their Double Day.
For a little more challenge, write the more general version that computes the day when one person is \( n \) times older than the other.

Solution: http://thinkpython2.com/code/double.py