如何从同一文件夹和外部通用导入 Python 文件？

Question

I have hierarchy of files:
folder
|
classes
|
class1.py
class2.py
test_class2.py
main.py
Sorry, I can't find how to tab text. Main.py and classes folder is in the same folder.
Main.py imports from class2.py from classes.class2 import someclass .
The class2.py imports from class1.py from classes.class1 import someanotherclass .
This works perfectly in case of running main.py. The problem is if I want to test class2.py in the folder 'classes', I always need to change import to from class1.py import someanotherclass . So is there any universal way to import it in both cases, so as for main.py and class2.py work properly?

Answer 1

I would assume that relative imports is what you are looking for: https://docs.python.org/3/reference/import.html#package-relative-imports

main.py

from classes.class2 import someclass

classes/class2.py

from .class1 import someanotherclass