Usage of "Matlab python engine" from python executed by Matlab

To reproduce the error, set up an Matlab + python environment with installed matlab.engine.

Executing the code

py.importlib.import_module('matlab.engine')

gives the following error message:

Error using enginesession>__init__ (line 8)
Python Error: EngineError: MATLAB process session cannot be initialized.

Error in __init__><module> (line 80)
_session = EngineSession()

Error in <frozen importlib>_call_with_frames_removed (line 222)

Error in <frozen importlib>exec_module (line 673)

Error in <frozen importlib>_load_unlocked (line 673)

Error in <frozen importlib>_find_and_load_unlocked (line 958)

Error in <frozen importlib>_find_and_load (line 969)

Error in <frozen importlib>_gcd_import (line 986)

Error in __init__>import_module (line 126)
    return _bootstrap._gcd_import(name[level:], package, level)

The basic problem I want to solve by using matlab.engine is to have callbacks from python to Matlab. The trivial solution "passing function handles" is not possible. Is there a different approach possible?

[Tomasz Wyrowinski]

I've also encountered that problem. Is there any solution or workaround maybe?