I'm new in python and I'm using MOOC course to learn (and Udemy). I come across this exercise and I'm stuck with this: Students database exercise - Part 3 I wrote this code (unfinished!), but im having problems with the add_course function. I am not able to ignore adding courses with lower grade. I tried for loops too. Can anyone help me here? Thanks a lot! # Write your solution here def add_student(database: dict, name: str): courses = [] database[name] = courses def add_course(database: dict, name: str, course: tuple): courses = database[name] if course[1] == 0: pass elif course[0] in courses: pass else: courses.append(course) def print_student(database: dict, name: str): if name not in database: print(f"{name}: no such person in the database") else: if len(database[name]) == 0: print(f"{name}:") print(" no completed courses") else: completed_courses = len(database[name]) sum_grades = 0 print(f"{name}:") print(f" {completed_courses} completed courses:") for courses in database[name]: sum_grades += courses[1] avg_grade = sum_grades / len(database[name]) print(f" {courses[0]} {courses[1]}") print(f" average grade {avg_grade}") #def summary(database: dict): # pass if __name__ == "__main__": students = {} add_student(students, "Peter") add_course(students, "Peter", ("Introduction to Programming", 3)) add_course(students, "Peter", ("Advanced Course in Programming", 2)) add_course(students, "Peter", ("Data Structures and Algorithms", 0)) add_course(students, "Peter", ("Introduction to Programming", 2)) print_student(students, "Peter") Tried: For loops, appending to another list first. Expected: If the course is already in the database in that specific student's information, the grade recorded in the database should never be lowered if the course is repeated. Resulted now: I'm getting duplicates. Continue reading...