03. Student Credits

import re


def get_course_name(data):
    valid = []
    pattern = "[A-Za-z]+"

    for el in data:
        match = " ".join(re.findall(pattern, el))
        valid.append(match)
    return valid


def get_course_grades(data):
    valid = []
    pattern = "\-[A-Za-z]|\d+"

    for el in data:
        match = " ".join(re.findall(pattern, el))
        valid.append(match)
    return valid


def students_credits(*data):
    course_names = get_course_name(data)
    course_grades = get_course_grades(data)

    student_info = {}

    for el in range(len(course_names)):
        student_info[course_names[el]] = [int(x) for x in course_grades[el].split()]


    # actual logic for the calculations (start on the following line)
    course_and_credits_info = {}
    total_student_credits = 0

    for course, grade in student_info.items():
        course_credits = grade[0]
        total_points = grade[1]
        student_points = grade[2]

        percentage = student_points / total_points
        student_credits = course_credits * percentage

        course_and_credits_info[course] = student_credits
        total_student_credits += student_credits

    sorted_course_and_credits_info = dict(sorted(course_and_credits_info.items(), key=lambda x: -x[1]))

    if total_student_credits >= 240:
        print(f"Diyan gets a diploma with {total_student_credits:.1f} credits.")
    else:
        print(f"Diyan needs {240 - total_student_credits:.1f} credits more for a diploma.")

    return '\n'.join([f"{k} - {v:.1f}" for k, v in sorted_course_and_credits_info.items()])