Input and Output¶

Write code to print Hello, World

Use the print() function, and remember that strings are surrounded by double-quotes or single-quotes.

print("Hello, World") # or print('Hello, World')

Assume you have a variable ranking set to some integer value. Write a line of code to print the value of ranking. ranking = 99 # Replace this comment with your code ====

print() evaluates each variable or expression before printing it.

print(ranking)

Assume you have two variables ranking and average set to some values. Write a line of code to print the values with a single space between. # Replace this comment with your code. ====

The comma in print('x', 'y') will automatically insert a space between the two values

print(ranking, average)

Assume you have two variables start and interval. Write a line of code to print the sum of the two values. start = 103233.1 interval = 201787.33 # Replace this comment with your code. ====

You can put expressions, like x + y into a print statement, too.

print(start + interval)

Assume you have a variable ranking set to some integer value. Write a line of code to print Ranking: followed by the value that ranking refers to. Note that there should be one space between the : and the value. E.g., if ranking was 7, the output would be Ranking: 7. ranking = 7 # Replace this comment with your code. ====

Remember, the comma in a print adds a space, so be careful!

print('Ranking:', ranking)

Assume you have a variable name set to a student’s name, and a variable score set to the score the student got on the last quiz. Write a line of code to print out the student’s name and the student’s score, in the following format. Name: Joe McDonald Score: 7 where the student’s name is Joe McDonald and the student’s score is 7. # Replace this comment with your code. ====

You can pass as many parameters as you want to print, separated by commas.

print('Name:', name, 'Score:', score)

Write code to read in a string value from the user, storing the result in a variable name. # Replace this comment with your code. ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertIs(type(name), str, 'variable must be a str') myTests().main()

Use input(). You do NOT have to convert the result to a string, because input() returns a string.

name = input() # or, better: name = input("Enter a name: ")

Write code to prompt the user for a score, reading in the score into a variable score. The type of score should be a float. # Replace this comment with your code. ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertIs(type(score), float, 'variable must be a float') myTests().main()

Use input(). You have to convert the result to a float, because input() returns a string.

score = float(input('Enter a score: ')) # or, # print("Enter a score: ", end='') # score = float(input())