Exercise_26.py

#Exercise 26: Congradulations Take a test

# You are almost done with the first half of the book. The second half is where things get interesting. 
# You will learn logic and be able to do useful things like make decisions.

# Before you continue, I have a quiz for you. This quiz will be very hard because it requires you to fix someone else's code. 
# When you are a programmer you often have to deal with another programmer's code, and also with their arrogance. 
# They will very frequently claim that their code is perfect.

# These programmers are stupid people who care little for others. A good programmer assumes, like a good scientist, that there's 
# always some probability their code is wrong. Good programmers start from the premise that their software is broken and then 
# work to rule out all possible ways it could be wrong before finally admitting that maybe it really is the other guy's code.

# In this exercise, you will practice dealing with a bad programmer by fixing a bad programmer's 
# code. I have poorly copied exercises 24 and 25 into a file and removed random characters and added flaws. 
# Most of the errors are things Python will tell you, while some of them are math errors you should find. 
# Others are formatting errors or spelling mistakes in the strings.

# All of these errors are very common mistakes all programmers make. Even experienced ones.

# Your job in this exercise is to correct this file. Use all of your skills to make this file better. 
# Analyze it first, maybe printing it out to edit it like you would a school term paper. Fix each flaw and 
# keep running it and fixing it until the script runs perfectly. Try not to get help, and instead if you get stuck 
# take a break and come back to it later.

# Even if this takes days to do, bust through it and make it right.

# Finally, the point of this exercise isn't to type it in, but to fix an existing file. To do that, you must go to:

def break_words(stuff):
    """This function will break up words for us."""
    words = stuff.split(' ')
    return words

def sort_words(words):
    """Sorts the words."""
    return sorted(words)

def print_first_word(words):
    """Prints the first word after popping it off."""
    word = words.pop(0)
    print word

def print_last_word(words):
    """Prints the last word after popping it off."""
    word = words.pop(-1)
    print word

def sort_sentence(sentence):
    """Takes in a full sentence and returns the sorted words."""
    words = break_words(sentence)
    return sort_words(words)

def print_first_and_last(sentence):
    """Prints the first and last words of the sentence."""
    words = break_words(sentence)
    print_first_word(words)
    print_last_word(words)

def print_first_and_last_sorted(sentence):
    """Sorts the words then prints the first and last one."""
    words = sort_sentence(sentence)
    print_first_word(words)
    print_last_word(words)


print "Let's practice everything."
print 'You\'d need to know \'bout escapes with \\ that do \n newlines and \t tabs.'

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explantion
\n\t\twhere there is none.
"""


print "--------------"
print poem
print "--------------"

five = 10 - 2 + 3 - 6
print "This should be five: %s" % five

def secret_formula(started):
    jelly_beans = started * 500
    jars = jelly_beans / 1000
    crates = jars / 100
    return jelly_beans, jars, crates


start_point = 10000
beans, jars, crates = secret_formula(start_point)

print "With a starting point of: %d" % start_point
print "We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates)

start_point = start_point / 10

print "We can also do that this way:"