Question

Storing data and adding to data in a dictionary: Experiment with Python dictionaries and their keys() member function that returns a list of a dictionary's keys. You can check if a particular key is in a dictionary by using the in test with the keys list. For example, if our dictionary is

MyDict = { 1: 'One', 2: 'Two', 3: 'Three' }

Then ( 2 in MyDict.keys() )

evaluates to True, indicating that 2 is a valid key for MyDict.

Write a Python program that, in a loop, asks the user for a name and then a numerical score, and then asks whether to do another. The user may enter the same name more than one time. When a name is entered, check in the name is already in the dictionaries keys. If it is not (if it's a new name), then add a new pair to the dictionary consisting of the name as the key and the entered score inside a list as the value. If the name is already among the dictionary keys (the name already has one or more scores stored for it), then append the current entered score to the end of the list for that name. When the user is done entering names and scores, create a sorted list of the names. Then, using the sorted list, neatly print out each name and the average score for that name. See the sample output below for an adequate implementation.

C:\Users\brokow\UCM Classes\ME 021\2019 Spring Assignments>HW04_02.py

Enter a name: Jimbo

Enter a score for Jimbo: 15

Enter more data (y/n) ? y

Enter a name: Jolene

Enter a score for Jolene: 21

Enter more data (y/n) ? y

Enter a name: Carlos

Enter a score for Carlos: 19

Enter more data (y/n) ? y

Enter a name: Jolene

Enter a score for Jolene: 22

Enter more data (y/n) ? y

Enter a name: Jimbo

Enter a score for Jimbo: 18

Enter more data (y/n) ? n

Carlos has average score 19.00

Jimbo has average score 16.50

Jolene has average score 21.50

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

Please do give a thumbs up : )

Thank You !
===========================================================================

def main():
    dict ={}
    repeat ='y'
    while repeat=='y':
        name = input('Enter a name: ').title()
        score = int(input('Enter a score for {}: '.format(name.title())))
        if name in dict.keys():
            score_list = dict.get(name)
            score_list.append(score)
        else:
            dict[name]=[score]
        repeat = input('Enter more data (y/n)? ').lower()

    for name in sorted(dict.keys()):
        score_list = dict.get(name)
        total_score = sum(score_list)
        score_count = len(score_list)
        print('{} has average score {:.2f}'.format(name,total_score/score_count))
main()

===========================================================

Code screenshot and output

Please do give a thumbs up : )