Question

The Python program will compute total mileage for all trips included :

Trip: 1,2,3,4

Mileage: 200, 400, 800, 10

Gas: 10, 17, 39, 1

As well as the fuel efficiency in miles per gallon.

Your program will open the file, read it line by line and add the miles driven and the gallons gas consumed then calculate the average fuel efficiency. It will then write

Once the program has read all the lines, it will write the total miles driven, total gas consumed and the gas miles per gallon to a file called output.txt.

You will assume that your txt files are located in the same directory as the code to avoid path issues.

Remember that any open file will need to be closed.

Example of execution:

opening file trip.txt

opening file output.txt

output.txt will contain:

total mileage: 1410

total gas consumed: 67

overall mile per gallon: 21.04

Answer 1

If you have any doubts, please give me comment...

Code:

def readline(s, ind):

return list(map(int, s.strip()[ind:].split(",")))

def main():

fp = open("trips.txt", "r")

print("opening trips.txt")

trips = readline(fp.readline(), 6)

mileages = readline(fp.readline(), 9)

gas = readline(fp.readline(), 5)

fp.close()

fout = open("output.txt", "w")

print("opening output.txt")

total_mileage = 0

for mile in mileages:

total_mileage += mile

total_gas_consumed = 0

for consumed_gas in gas:

total_gas_consumed += consumed_gas

milePerGallon = total_mileage/total_gas_consumed

print("total mileage:",total_mileage, file=fout)

print("total gas consumed:",total_gas_consumed, file=fout)

print("overall mile per gallon: %.2f"%milePerGallon, file=fout)

print("Successfully wrote to output.txt")

fout.close()

main()