Part 0, 2 points: Let's encapsulate the solution for exercise 2.2 into a function. Create a function, print_sphere_volume_radius_5(), which prints the volume of a sphere with radius 5 like this:

>>> print_sphere_volume_radius_5()
A sphere with radius 5 has volume 523.5987755982989 .

def print_sphere_volume_radius_5():
    '''Prints a string describing the volume of a sphere.'''
    pi = 3.1415926535897931
    radius = 5
    volume = #use radius and pi in the volume formula here
    print('A sphere with radius ' + str(radius)) #finish this

• Make sure you have all the words in the correct places as in the example.
• Don't forget the period at the end of the sentence.
• Make sure your capitalization is correct.

Part 1, 2 points: Create a new function, print_sphere_volume_radius_8(), which prints the volume of a sphere with radius 8 in the same way as the last function. To write this, you should be able to copy-paste the last function and just change one character! Once you think you have it working, add the test like we did before. Then cross-reference the result of the tests with people around you. (Don't show them the code in your script! Just show the output in the terminal and see if you both get the same thing.) Tester.

Part 2, 4 points:

def print_sphere_volume(radius):

>>> print_sphere_volume(5)
A sphere with radius 5 has volume 523.5987755982989 .
>>> print_sphere_volume(8)
A sphere with radius 8 has volume 2144.660584850632 .

def print_sphere_volume(radius):
     radius = 5 #Destroys the parameter 
     pi = 3.1415926535897931
    ...

>>> print_sphere_volume(5)
A sphere with radius 5 has volume 523.5987755982989 .
>>> print_sphere_volume(8)
A sphere with radius 5 has volume 523.5987755982989 .

Part 3, 2 points: We're going to switch back to functions without parameters for a bit. Let's create a function to do part 2 of exercise 2.2. Create a function, print_total_wholesale_cost(). After the docstring (yes, you have to come up with that yourself this time) start with the following two lines:

    cover_price = 24.95
    num_copies = 60

The total wholesale cost of 60 books is $ 945.4499999999999 .

The total wholesale cost of 35 books is $ ****** .

Part 4, 2 points: Let's create a function to print out the sounds animals make: horses, ducks, cows, and goats. Add a new function, print_animal_sounds() and start by creating eight variables:

    horse_sound = "neigh"
    duck_sound = "quack"
    cow_sound = "moo"
    goat_sound = "bleat"
    num_horses = 2
    num_ducks = 2
    num_cows = 2
    num_goats = 2

neighneighquackquackmoomoobleatbleat

>>> two_noises = 'moo' + 'quack'
>>> print(two_noises)

Part 5, 0 points: Expert Practice: let's improve part 3 of exercise 2.2. Create a function, print_breakfast_time(). Dealing with time can be a bit tricky, so I recommend starting with these variables:

    start_hours = 6
    start_minutes = 52
    easy_mile_minutes = 8
    easy_mile_seconds = 15
    tempo_mile_minutes = 7
    tempo_mile_seconds = 12
    num_easy_miles = 2
    num_tempo_miles = 3

After running 5 miles, I returned home for breakfast at *:**:**.

Part 6, 2 points: Let's go through the process of changing a no-parameter function to one with parameters again. I like indenting with four spaces (when I'm coding). Write a new function, indent_mouse() in the following way:

def indent_mouse():
    string = 'mouse'
    print('    ' + string)

Part 7, 2 points: Let's improve that function to use a parameter, which we will still indent by four spaces. Copy and paste the code from the previous part to duplicate the function, then rename it to indent_string. In order to have it take an argument, we need to add a parameter in the parentheses. Do that by changing the header to this:

def indent_string(string):

>>> indent_string("Djinni Bartimaeus")
    Djinni Bartimaeus

def indent_string(string):
    string = 'mouse'
    print('    ' + string)

>>> indent_string('bananaface')
    mouse
>>> indent_string('vedalken wizard')
    mouse

Part 8, 2 points: Let's write a function to say a nice greeting to someone: greet

>>> greet('Bananaman')
Hi, Bananaman!
>>> greet('Count Duckula')
Hi, Count Duckula!

def greet(name):
    '''Prints out a greeting.'''
    ...

Part 9, 2 points: Let's practice using multiple parameters!

def greet_whole_name(first_name, last_name):
    '''Prints a greeting to someone with two names.'''
    ...

>>> greet_whole_name('Count',  'Duckula')
Hi, Count Duckula!
>>> greet_whole_name('Danger', 'Mouse')
Hi, Danger Mouse!

Part 10, 2 points: This is a long one! Write super_brag_aboutwhich works like this:

>>> super_brag_about('Ash', 'Ketchum')
Wow, Ash Ketchum is definitely the coolest person I know.  They are just so
awesome!  Ash can jump through hoops of fire and once bested a Siberian Hors
etiger in a game of Chessboxing!

Part 11, 2 points: Exercise 3.1. This one's a bit tricky. The total length of the string that you're printing should be exactly 70. (I recommend using a parameter name that's better than s, such as string). Here are some examples:

>>> right_justify('mountain')
                                                              mountain
>>> right_justify('amazing banana monkeys')
                                                amazing banana monkeys
>>> right_justify('smurf')
                                                                 smurf

Part 12, 2 points: Let's write a function that takes two arguments, indent_strings. To take two arguments, the header needs to include two parameters, like this:

def indent_strings(string_a, string_b):

>>> indent_strings("Barb", "Kellner")
    BarbKellner

Part 13, 2 points: Let's write a function that right-justifies two lines! It should work like this:

def right_justify_two("Gus", "Chiggins"):
                                                                   Gus
                                                              Chiggins

Part 14, 2 points: Write a function, print_square_area(side) that prints out a sentence about the area of the square:

>>> print_square_area(1)
A square with sides of length 1 has area 1.
>>> print_square_area(3)
A square with sides of length 3 has area 9.

Submitting your Project:

Make sure all your code is in a file labelled with your user name (everything before the @ in your school email address) followed by _projects.py all in snake_case. (For example, my file name would be: kburke_projects.py.) It's very important to name your file correctly in order for me to grade it. Make sure your code runs, then upload it to the project on Canvas. (Don't submit code that doesn't run; you won't earn any points!) Your code should include solutions to all non-zero-point problems from Project 0 onwards. If there is already a file up on Canvas, delete that before uploading the new version or make sure your new file replaces that. (Sometimes Canvas adds a number after the file name. Don't worry about that, because it's something (freaking annoying) you don't have control of. I have a script that automatically deletes that.)