Python import class from another class

Question

This is an example to better understand my problem:

fileno1.py

class MyClass:
    class MySecondClass:
         value = {"some": "dictionary"}

What I tried:
fileno2.py

from fileno1.MyClass import MysecondClass
print(MySecondClass.value)

but that gave me:
ModuleNotFoundError: No module named 'fileno1.MyClass'; "fileno1" is not a package

Now my question:
Is it somehow possible to import MySecondClass to another file in the same directory so that the variable value is accessible there?

that's now how imports work, you can only import top level defined objects, not nested ones — gold_cy, May 13 '21 at 14:11
Does this answer your question? [python import nested class](https://stackoverflow.com/questions/36514851/python-import-nested-class) — gold_cy, May 13 '21 at 14:14
@gold_cy Yes, but is that the only way how you can do it? Because in my original Project, I have more and deeper nested classes that need to be accessed. — Enoch, May 13 '21 at 14:27
@Matthias I am building an app automation framework with uiautomator2 and with nested classes it is easier to keep track of where the elements are located in the app — Enoch, May 13 '21 at 17:17

alumarcu · Accepted Answer · 2021-05-13T14:18:18.900

3

I believe the correct syntax is to import the top-level class, then call the nested class through the top level class.

from fileno1 import MyClass

print(MyClass.MySecondClass.value)

There's a guide on nested classes here that you might find useful.

edited May 13 '21 at 14:18

answered May 13 '21 at 14:12

alumarcu

133
6

Python import class from another class

1 Answers1