py2app generates error

[dsquared22]

Have running simple GUI python app using Beeware's Toga UI library. Runs fine from terminal. After trying to build executable app with py2app, the resulting app fails with this output in terminal:

(beeware-venv) daviddiskin@MacBook-Pro dist % app.app/Contents/MacOS/app pygame 2.1.2 (SDL 2.0.18, Python 3.10.0) Hello from the pygame community. https://www.pygame.org/contribute.html [Cocoa] Not implemented: MultilineTextInput.set_on_change()

MultilineTextInput is a widget from toga.

Any suggestions much appreciated!

app-code-pdf.pdf