class student:

    def __init__(self, first_name, last_name, student_id, year):
        self.first_name = first_name
        self.last_name = last_name
        self.student_id = student_id
        self.year = year
        self.course = []

    def __str__(self):
        return self.first_name, 'is enrolled in', self.course

    def enroll(self, course):
        self.course = course



def main():

    file = student('John', 'Smith', 'L01234567', 'senior')
    print(file)
    file.enroll ('CSC225')




main()