What's the purpose of '.' when importing classes from another py file?

Question

I have created 2 Python files and it's saved in the OOP_1 folder. There are errors when I tried to run and I am unable to understand the purpose of using . when importing the classes from Python files.

I have tried removing the .student , .course , from the relevant Python files, but it wouldn't run in main.py using the from OOP_1 import * .

1. student.py

    class Student: def __init__(self,name, number): self._student_name = name self._student_number = number

2. course.py

    from.student import Student class Course(Student): #instance attributes def __init__(self, name, code, credit, student_limit): # Your code for the constructor self._name = name self._code = code self._credit = credit self._student_limit = student_limit

3. __init__.py

    from.student import Student from.course import Course

4. main.py

    from OOP_1 import *

However, in __init__ , the Python gives me an error:

ModuleNotFoundError: No module named '__main__.student'; '__main__' is not a package

In main.py , Python gives me:

ModuleNotFoundError: No module named 'course'

What can I do to ensure that my folder where I stored my classes will work in main.py file?

Answer 1

A single leading dot indicates a relative import, starting with the current package.

You need to have those modules in the current context to import them like this