3.7. Chapter 3 Exercises

There are 3 syntax errors in the following code. Fix it to print correctly without errors. It will print, “Your name is Carly and your favorite color is red.”.

color = "red' name = 'Carly' print("Your name is " + name + and your favorite color is" + color + ".") ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(color, "red", "Testing that color has the correct value." ) self.assertEqual(name, "Carly", "Testing that name has the correct value." ) self.assertEqual(self.getOutput().strip(), "Your name is Carly and your favorite color is red.", "Testing output. Make sure you have spaces in all the right places!") myTests().main()

You will get an error if you try to run the following code. Fix the code to print correctly without errors. It should print, “Your name is Carly and your age is 19.”

age = 14 + 5 name = 'Carly' print("Your name is" + name + "and your age is" + age + ".") ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(age, 19, "Testing that age has the correct value." ) self.assertEqual(name, "Carly", "Testing that name has the correct value." ) self.assertEqual(self.getOutput().strip(), "Your name is Carly and your age is 19.", "Testing that you have the right output - make sure your spaces are correct!") self.assertNotIn("19", self.getEditorText(), "Testing that you didn't hardcode the answer.") myTests().main()

Use string slicing to set s1 to “giant alligator”. The print will put |’s around your output to make it clear if you have a space at the start or end of s1.

sentence = "There is a giant alligator over there." s1 = print("|" + s1 + "|") ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(s1, "giant alligator", "Testing that s1 has the correct value. Make sure you don't have an extra space at the start or end!" ) self.assertNotIn("alligator", self.getEditorText().split("\n")[1], "Testing that you didn't hardcode the answer.") myTests().main()

Using the variables given, modify the print statement to print "A car travelling at 70 mph takes 2.0 hours to go 140 miles." Make sure to print the variables, not the values you know they contain. If we changed milesPerHour and distanceTravelled your program should still print a correct message.

milesPerHour = 70 distanceTravelled = 140 timeTaken = distanceTravelled / milesPerHour print("A car travelling at...") ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(self.getOutput().strip(), "A car travelling at 70 mph takes 2.0 hours to go 140 miles.", "Testing your output. Make sure you have spaces in the right places!" ) self.assertRegex("".join(self.getEditorText().split("\n")[2:]), r"\D*", "Testing that you used the variables and did not just type numbers.") myTests().main()

Write code below to get at least 3 values from the user using the input function and output a mad lib (which will use the input to tell a silly story).

This problem is not automatically checked. Make sure you are using variables to build your output and that the story uses the values you type in as input. Try giving different inputs and make sure that the story uses them.

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