on macos get long error message, but everything seems to work alright though

[harcokuppens]

On macos I get a long error message, but everything seems to work alright though.
The error happens when running the program https://github.com/ev3dev-python-tools/ev3dev2simulator/blob/master/testprograms/bump.py on the simulator.
The running simulator doesn't give an error, but the running ev3dev2 program does.

The error:

Exception in thread Thread-19:
Traceback (most recent call last):
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyttsx3/init.py", line 44, in init
eng = _activeEngines[driverName]
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/weakref.py", line 137, in getitem
o = self.datakey
KeyError: None

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 926, in _bootstrap_inner
self.run()
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/ev3dev2simulator/connector/sound_connector.py", line 161, in _tts
engine = tts.init()
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyttsx3/init.py", line 46, in init
eng = Engine(driverName, debug)
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyttsx3/engine.py", line 52, in init
self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyttsx3/driver.py", line 75, in init
self._module = importlib.import_module(name)
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1006, in _gcd_import
File "", line 983, in _find_and_load
File "", line 967, in _find_and_load_unlocked
File "", line 677, in _load_unlocked
File "", line 728, in exec_module
File "", line 219, in _call_with_frames_removed
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyttsx3/drivers/nsss.py", line 4, in
from PyObjCTools import AppHelper
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/thonny/backend.py", line 285, in _custom_import
module = self._original_import(*args, **kw)
File "/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyObjCTools/AppHelper.py", line 21, in
from AppKit import (
ImportError: cannot import name 'NSApplicationDidFinishLaunchingNotification' from 'AppKit._AppKit' (/Applications/Thonny-portable-3.2.6.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/AppKit/_AppKit.cpython-37m-darwin.so)