Just starting out with OOP in Python, using a set of tutorials by ‘Tech with Tim’
Created a couple of classes for a student database – here is the relevant code.

class Student:
    def __init__(self, name, age, grade):
        self.name = name
        self.age = age
        self.grade = grade

    def get_grade(self):
        return self.grade

And

 def  get_avarage_grade(self):
    value = 0
    for student in self.students:
        value += student.get_grade()
    return value / len(self.students) # here

I think the issue is within the 2nd function.
Any ideas as to why I get the ZeroDivisionError and how can I fix it?
Thanks in advance.

Source: Python Questions