Loop through Python dictionary and add different values with same keys to a new dictionary-CodePudding

I am really stuck with this exercise. How can I with a for loop add the same keys with a new values to a different dictionary in Python?

Goal is to loops through student grades and replace them with "Excellent", "Bad", etc.

This is as far as I could get:

student_scores = {
  "Harry": 81,
  "Ron": 78,
  "Hermione": 99, 
  "Draco": 74,
  "Neville": 62,
}


student_grades = {}


for key, value in student_scores.items():
    print(key, value)


print(student_grades)

Much appreciated in advance!

CodePudding user response：

You can add values to a dictionary by simply assigning the value to the dictionary indexed by the key. For example, student_grades["Harry"] = "Excellent"

You can do the same in your loop:

for key, value in student_scores.items():
    student_grades[key] = "Excellent"

if course, you'll not assign the same value (grade) for all keys. Use an if statement or any other conditional logic to select which grade to assign to each student. For example:

for key, value in student_scores.items():
    if (value > 90)
        student_grades[key] = "Excellent"
    else
        student_grades[key] = "Okey-ish"