In python, write a program that reads a list of scores and then assigns grades H

Question

In python, write a program that reads a list of scores and then assigns grades

Have your program:

Use 100 for the best score

Begin the program and each function with a descriptive comment.

Define main( ) to call the two functions described below.

Define a function to prompt the user to enter valid scores until they enter a sentinel value -999. Have this function both create and return a list of these scores. Do not store -999 in the list!

Have main( ) then pass this the list to a second function which traverses the list of scores printing them along with their appropriate grade.

Run your program with a score within each of the possible grade ranges. See the sample output below.

Use local variables, rather than global.

Use structured code (e.g., no unstructured exits from loops).

Sample output:

          94 is an A

          83 is a B

          72 is a C

          61 is a D

          59 is an F   

Explanation / Answer

#python code
def findGrades(scoreList):
# repeat the loop for all scores in the list
i = 0
while i < len(scoreList):
# get current score
score = int(scoreList[i])
# findd and print the grade of the student
if score >= 90:
print "Student", (i+1) , "score is", score, "and grade is A"
elif score >= 80:
print "Student", (i+1) , "score is", score, "and grade is B"
elif score >= 70:
print "Student", (i+1) , "score is", score, "and grade is C"
elif score >= 60:
print "Student", (i+1) , "score is", score, "and grade is D"
else:
print "Student", (i+1) , "score is", score, "and grade is F"
i += 1

def validScore():
   scoreList = []
   while True:
       score = int(raw_input("Enter a score: "))
       if score == -999:
           break
       else:
           scoreList.append(score)
   return scoreList

# main() function
def main():
scoreList = validScore()
findGrades(scoreList)

main()

'''
output:

Enter a score: 94
Enter a score: 83
Enter a score: 72
Enter a score: 61
Enter a score: 59
Enter a score: -999
Student 1 score is 94 and grade is A
Student 2 score is 83 and grade is B
Student 3 score is 72 and grade is C
Student 4 score is 61 and grade is D
Student 5 score is 59 and grade is F

'''

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