# Named constants

STARTING_YEAR = 1993

ENDING_YEAR = 2013

# The get_price function accepts a string that is assumed to be

# in the format MM-DD-YYYY:Price. It returns the Price component

# as a float.

def get_price(str):

# Split the string at the colon.

items = str.split(':')

# Return the price, as a float.

return float(items[1])

/Users/bretdandridge/Downloads/average_price_per_year.py# The get_month function accepts a string that is assumed to be

# in the format MM-DD-YYYY:Price. It returns the MM component

# as an int.

def get_month(str):

# Split the string at the hyphens.

items = str.split('-')

# Return the month, as an int.

return int(items[0])

# The get_day function accepts a string that is assumed to be

# in the format MM-DD-YYYY:Price. It returns the DD component

# as an int.

def get_day(str):

# Split the string at the hyphens.

items = str.split('-')

# Return the day, as an int.

return int(items[1])

# The get_year function accepts a string that is assumed to be

# in the format MM-DD-YYYY:Price. It returns the YYYY component

# as an int.

def get_year(str):

# Split the string at the colon.

items = str.split(':')

# Split the date item at the hyphens.

date_items = items[0].split('-')

# Return the year, as an int.

return int(date_items[2])

# The get_yearly_average function has two parameters: gas_list and year.

# The gas_list parameter is a list of strings, where each string is assumed

# to be in the format MM-DD-YYYY:Price. The year parameter is a numeric

# value assumed to be a year. The function returns the average price for

# for all elements where the YYYY component is equal to the year parameter.

def get_yearly_average(gas_list, year):

# Initialize an accumulator.

total = 0

# Initialize a counter.

count = 0

# Step through the list, getting the sum of all the prices

# for the specified year.

for e in gas_list:

if get_year(e) == year:

total += get_price(e)

count += 1

# Calculate the average.

average = total / count

# Return the average.

return average

def main():

# Open the file.

gas_file = open('GasPrices.txt', 'r')

# Read the file's contents into a list.

gas_list = gas_file.readlines()

# Display the average price for each year.

for i in range(STARTING_YEAR, ENDING_YEAR + 1):

print('The average price in ', i,

' was $', format(get_yearly_average(gas_list, i), '.2f'),

sep = '')

main()

https://elearn.uta.edu/bbcswebdav/pid-6435746-dt-content-rid-61042592_2/courses/2178-INTRODUCTION-TO-PROGRAMMING-91541-003/GasPrices.txt

I need help with the last three problems on the question I cant seem to make since of it. I have posted my current code as well as a web link to the txt file. PLease help Ive been at it fro almost two weeks