Programming in Python/

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Solution: Create a Dictionary and Replace Key-value Pairs

Solution: Create a Dictionary and Replace Key-value Pairs

Learn how to create a dictionary containing students' names and scores and then replace the scores with the total and average scores.

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The solution to the problem of creating a dictionary that contains students’ names and scores, and then replacing the scores with the total and average scores is given below.

Solution

Python 3.8
students = {
               'John' : { 'Math' : 48, 'English' : 60, 'Science' : 95},
               'Richard' : { 'Math' : 75,'English' : 68,'Science' : 89},
               'Charles' : { 'Math' : 45,'English' : 66,'Science' : 87}
           }
top_student = ''
top_student_score = 0
for nam, info in students.items( ) :
    total = 0
    for sub, scores in info.items( ) :
        total = total + scores
    avg = int(total / 3)
    students[nam] = {'Total' : total, 'Average' : avg}
    if avg > top_student_score :
        top_student = nam
        top_student_score = avg
print(students)
print ("Top student of the class:" , top_student)
print("Top student's score:", top_student_score)

Explanation

  • Lines 1–5: We create a dictionary students that contains
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