This is a bit off topic for this thread as this is a Mac specific issue.
In response to your issue it is reporting that you do not have the module pathlib2 installed.
Try pip3 install pathlib2 and then reinstall wxPython
This is a bit off topic for this thread as this is a Mac specific issue.
In response to your issue it is reporting that you do not have the module pathlib2 installed.
Try pip3 install pathlib2 and then reinstall wxPython