FileNotFoundError: [Errno 2] ?

[JohnnyCoffee]

Hi,

I have the following code in a class that works perfectly fine when inside it. Now when accessing through another class file presents me with error. Below I demonstrate the class that works:

import os 
class WspApplication:

ws_listdir = os.listdir('../application/controllers')

This class works when I print inside it.
It only presents the error below when I try to access it in another class:
ws_listdir = os.listdir('../application/controllers') FileNotFoundError: [Errno 2] No such file or directory: '../application/controllers'

Below is the other class:

from syscore.wsp_application import WspApplication
class WspProtected:

def wsm_dir(ws_path):
   ws_root = WspApplication.ws_listdir
   if ws_path == ws_root:
       return 'Info. . .'.encode('utf-8')

Can disregard the path parameter in the analysis it works!
Obs: These classes are in the same directories, without permissions and using python 3.7.3