Intro to Python for Computer Science and Data Science: Learning to Program with AI, Big Data and The Cloud

Exercises

Unless specified otherwise, use IPython sessions for each exercise.

1. 2.1 (What does this code do?) Create the variables x = 2 and y = 3, then determine what each of the following statements displays:

   1. print('x =', x)

   2. print('Value of', x, '+', x, 'is', (x + x))

   3. print('x =')

   4. print((x + y), 'x =', (y + x))

2. 2.2 (What’s wrong with this code?) The following code should read an integer into the variable rating:

   rating = input('Enter an integer rating between 1 and 10')
   

3. 2.3 (Fill in the missing code) Replace *** in the following code with a statement that will print a message like 'Congratulations! Your grade of 91 earns you an A in this course'. Your statement should print the value stored in the variable grade:

   if grade >= 90 ...