oop_grade_calculator.py

from __future__ import annotations
from GradeHolder import GradeHolder
from grade import Grade


course_name = input("which course? ").lower().rstrip()
grade_holder = GradeHolder(course_name)

initialize = True
while initialize:
    action = input("would you like use the data from "
                   "an existing file? (yes, no)\n").lower().rstrip()
    if action == "yes":
        grade_holder.initialize_from_file(f"grades/{course_name}.txt")
        initialize = False
    elif action == "no":
        initialize = False
    else:
        pass

is_on = True
while is_on:
    print("============")
    action = input("a: add new grade \ns: see current grade\nc: calculate "
                   "what you need on the final\nPress any other key to "
                   "end the program\n").lower().rstrip()
    print("============")

    if action == "a":
        name = input("name of assessment: ")
        weight = float(input("weight of assessment: "))
        mark = float(input("Grade you got: "))
        new_grade = Grade(name, weight, mark)
        grade_holder.add_grade(new_grade, write=True)
    elif action == "s":
        print(grade_holder)
    elif action == "c":
        goal = float(input("what is your goal? "))
        print(grade_holder.calculate_required_grade(goal))

    else:
        is_on = False