Question

(IN PYTHON) You are to develop a Python program that will read the file Grades-1.txt that you have been provided on Canvas. That file has a name and 3 grades on each line. You are to ask the user for the name of the file and how many grades there are per line. In this case, it is 3 but your program should work if the files was changed to have more or fewer grades per line. The name and the grades are separated by commas. You are to read in the file and place the student name and the average of the grades in a dictionary. Print out the dictionary after all the grades are processed. In order to get all the points for this assignment, you must have at least one function other than the main code, and the function must be commented beneath the def line with a docstring containing what the function does and any parameters that are required and any values returned. You must have meaningful variable names, and you must also read the file in a try/except block. You must also provide the code and the console output showing that your program enters all the lines from the Grades.txt files into a dictionary. You can use just the standard print function to print the dictionary. (IN PYTHON)

The following is what was EXACTLY in the file Grades-1.txt:

Fred, 57, 73, 98

George, 98, 77, 93

Donald, 81, 91, 71

JoAnn, 99, 88, 93

Margaret, 58, 79, 89

Steven, 90, 56, 47

Jamaal, 98, 91, 93

Davonte, 90, 70, 88

Jeri, 58, 78, 93

MaryEllen, 92, 88, 90

Patrick, 58, 62, 64

Derek, 90, 80, 70

Answer 1

Please find the following program in python to calculate the grade for the students in python and added necessary comments in it

Program:

def main():
"""
This api read the file Grades-1.txt using try and except block
and calculates the average of the grade
"""
  
filename=input("Enter the file name: ")
gradesNum=int (input("Enter the number of Grades in each line: "))
  
finalDict={}
total =0
  
try:
#open the file
f = open(filename, 'r')
with f:
lines=f.readlines()
#read line by line
for line in lines:
  
string=str(line)
lis1=string.split(',');
name=lis1[0]
print("Reading student: %s" %(name))
for i in range(gradesNum):
total=total + int(lis1[i+1])
#update the dictionary with average
finalDict[name]=average(total, gradesNum)
total=0
  

except OSError:
print("Unabel to open Grades-1.txt")
return
  
print("\n")
print(" %s %s" %("Student", "Average"))
for i in finalDict.keys():
print("%10s %.3f" %(i, finalDict[i]))

def average(total, gradesNum):
"""
This api calculates and return the average of the student
"""
avg = total/gradesNum
#return the average
return avg;
  
#call the main function
if __name__== "__main__":
main()

Output:

Enter the file name: Grades-1.txt
Enter the number of Grades in each line: 3
Reading student: Fred
Reading student: George
Reading student: Donald
Reading student: JoAnn
Reading student: Margaret
Reading student: Steven
Reading student: Jamaal
Reading student: Davonte
Reading student: Jeri
Reading student: MaryEllen
Reading student: Patrick
Reading student: Derek

Student Average
Jamaal 94.000
Derek 80.000
Davonte 82.667
Fred 76.000
Margaret 75.333
JoAnn 93.333
Donald 81.000
MaryEllen 90.000
George 89.333
Steven 64.333
Jeri 76.333
Patrick 61.333

Screen Shot: