Hello,
I am trying to get wxPython to work on Catalina using the same setup that I had on older Mac versions, however I am running into some issues. I’ve done a bunch of searching online, but I couldn’t find anything useful or recent about this.
My setup is as follows:
I’ve installed the framework version of Python 3.7 and the xcode dev tools.
I’ve installed virtualenv as pip3 install --user virtualenv.
I create a virtual environment as follows:
> cd ~/Desktop/test
> virtualenv env
> source env/bin/activate
This runs python 3.7, but not the framework version:
> python --version
Python 3.7.3
However, wxpython needs the framework version of python to work.
On older Mac versions I could get around this by following this guide: https://wiki.wxpython.org/wxPythonVirtualenvOnMac.
That guide recommends setting PYTHONHOME to the virtualenv and manually running the framework exectuable. That is, I can do this:
> export PYTHON = /Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7
> export PYTHONHOME = ~/Desktop/test/env/
> $PYTHON my_wxpython_script.py
And this runs fine on older Mac versions.
However, on Catalina I now get the following error:
Fatal Python error: initfsencoding: unable to load the file system codec
ModuleNotFoundError: No module named 'encodings'
Current thread 0x0000000115ce9dc0 (most recent call first):
Any ideas how I can fix the error above, or, alternatively, what is the recommended way of running the framework Python in a virtualenv on Catalina?