1. ./daysOfWeek.py
2. ./fibs2.py
3. ./fibs.py
4. ./friends.py
5. ./oldmac.py

# Example illustrating list operations: 
# concatenation, subsequences and iteration
# by Sara Sprenkle

weekdays = ["Mon", "Tue", "Wed", "Thu", "Fri"]
weekend_days = ["Sat", "Sun"]

# combine two lists into one
days_of_week = weekdays + weekend_days

print("The Days of the Week:")

# iterate through elements of list
for day in days_of_week:
    print(day)

print("\nAGAIN!")

# iterate through positions of list
for x in range(len(days_of_week)):
    print(days_of_week[x])

print()  
# reorganizing days of week to start on a Sunday
days_of_week = weekend_days[-1:] + weekdays + weekend_days[:1]

# weekdays:
extractedWeekdays = days_of_week[1:6]
print("Extracted weekdays:", extractedWeekdays)

extractWeekend = days_of_week[:1] + days_of_week[-1:]
print("Extracted weekend: ", extractWeekend)

extractWeekend2 = [days_of_week[0], days_of_week[-1]]
print("Extracted weekend: ", extractWeekend2)

extractWeekend3 = [days_of_week[0]] + [days_of_week[-1]]
print("Extracted weekend: ", extractWeekend3)

notExtractedWeekend = days_of_week[0] + days_of_week[-1]
print("Does not work: ", notExtractedWeekend)

# Example of creating a list of the appropriate size
# Computes the first SIZE Fibonacci numbers
# Tradeoff of using more space (the list, rather than a few variables)
# for easier implementation
# Sara Sprenkle

SIZE = 20

print("This program generates the first", SIZE, "Fibonacci numbers")

# creates a list of size SIZE, containing all 0s
fibs = [0]*SIZE

#fibs[0] = 0
fibs[1] = 1

for x in range(2, len(fibs)):
    newfib = fibs[x-1]+fibs[x-2]
    fibs[x] = newfib

# print that list out, as a list
print(fibs)

# To print out the list, individually (instead of as a list)
print("Printing elements of list: ")
for num in fibs:
    print(num, end=" ")
print()

# Example of appending to a list
# Computes the first SIZE Fibonacci numbers

# Tradeoff of using more space (the list, rather than a few variables)
# for easier implementation
# Sara Sprenkle

SIZE = 20

print("This program generates the first", SIZE, "Fibonacci numbers")

# create an empty list
fibs = []

# append the first two Fibonacci numbers
fibs.append(0)
fibs.append(1)

# compute the next Fibonacci numbers
for x in range(SIZE-2):
    newfib = fibs[-1] + fibs[-2]
    fibs.append(newfib)

# print the Fibonacci numbers as a list
print(fibs)

# To print out the list, individually (instead of as a list)
print("Printing elements of list: ")
for num in fibs:
    print(num, end=" ")
print()

# These are the people I know
# by Sara Sprenkle

friends = ["Alice", "Bjorn", "Casey", "Duane", "Elsa", "Farrah"]

for name in friends:
    print("I know " + name + "!")
    print(name, "is a friend of mine.")
    
print("Those are the people I know.")

# TODO: implement using a for loop that iterates over 
# the _positions_ in the loop

# Print out verses of the song Old MacDonald.
# Sara Sprenkle and CSCI-111

BEGIN_END = "Old McDonald had a farm"
EIEIO = ", E-I-E-I-O"

def main():
    animals = ["cow", "pig", "duck", "dog"]
    sounds = ["moo", "oink", "quack", "ruff"]
    
    for i in range(len(animals)):
        
        
        
# consider ease of changing this code to print more verses


def print_verse(animal, sound):
    """
    Prints a verse of Old MacDonald, plugging in the animal and sound
    parameters (which are strings), as appropriate.
    """
    print(BEGIN_END, EIEIO)
    print("And on that farm he had a", animal, EIEIO)
    print("With a", sound, ", ", sound, "here")
    print("And a ", sound, ", ", sound, "there")
    print("Here a", sound)
    print("There a", sound)
    print("Everywhere a", sound, ", ", sound)
    print(BEGIN_END, EIEIO)
    print()

if __name__ == "__main__":
    main()