import random def main():    # main function definition     aGrades=[]   # empty list to store Grades     for i in range(7): # loop to read 7 inputs         print("Input scores ",i+1," : ", end="")  # a message to enter grade         n=int(input())  # input grade         aGrades.append(n) # add grade into list     print("Grade list before randomize: ",aGrades)   # print list      random.shuffle(aGrades) # randomize list     numExams=len(aGrades)-1 # compute numExams     FinalExam=aGrades[-1] # store final grade     TotalPoints=sum(aGrades)-aGrades[-1]  # compute TotalPoints     TestAverage=TotalPoints/numExams   # compute TestAverage     FinalAverage=TestAverage*.6 + FinalExam*.4  # compute FinalAverage     print("Grade list after randomize is: ",aGrades)  # print list     print("Test Average = %.2f"%TestAverage) # print test average     print("Final Average = %.2f "%FinalAverage) # print final average main()   # calling main function    Can you explain  in a word doc explaining each line of code and their variables.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Python code:

import random
def main():    # main function definition
    aGrades=[]   # empty list to store Grades
    for i in range(7): # loop to read 7 inputs
        print("Input scores ",i+1," : ", end="")  # a message to enter grade
        n=int(input())  # input grade
        aGrades.append(n) # add grade into list
    print("Grade list before randomize: ",aGrades)   # print list 
    random.shuffle(aGrades) # randomize list
    numExams=len(aGrades)-1 # compute numExams
    FinalExam=aGrades[-1] # store final grade
    TotalPoints=sum(aGrades)-aGrades[-1]  # compute TotalPoints
    TestAverage=TotalPoints/numExams   # compute TestAverage
    FinalAverage=TestAverage*.6 + FinalExam*.4  # compute FinalAverage
    print("Grade list after randomize is: ",aGrades)  # print list
    print("Test Average = %.2f"%TestAverage) # print test average
    print("Final Average = %.2f "%FinalAverage) # print final average
main()   # calling main function 

 

Can you explain  in a word doc explaining each line of code and their variables.  .  

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