Answer:
Here is an example of how you could write a program to perform the tasks described:
# Store the student's name and number of courses
name = input("Enter the student's name: ")
num_courses = int(input("Enter the number of courses: "))
# Create an empty list to store the course data
courses = []
# Loop through each course
for i in range(num_courses):
 # Input the course ID and initialize the total grade to 0
 course_id = input("Enter the course ID: ")
 total_grade = 0
 
 # Input the grades and weights for each category
 print("Enter grades and weights for each category (enter -1 to finish)")
 while True:
 category = input("Enter the category (homework, quiz, test): ")
 if category == "-1":
 break
 grade = int(input("Enter the grade: "))
 weight = int(input("Enter the weight: "))
 
 # Calculate the contribution of this category to the total grade
 total_grade += grade * weight
 
 # Store the course data in a dictionary and add it to the list
 course_data = {
 "id": course_id,
 "grade": total_grade
 }
 courses.append(course_data)
 
# Input the final grade before the exam
final_grade_before_exam = int(input("Enter the final grade before the exam: "))