I found your tip extremely useful to solve the following problem I posted on stackoverflow:
I had a simple .py script that used tkinter, which I wanted to use to create a Mac OS app. I did my work using python 3.7 and IDLE. The script worked fine when run in IDLE, but the app I created using py2app and clear documentation at (py2app.readthedocs.io/en/latest/tu...) would not function,
I updated my Mac's python version from 2.7.16 to 3.7 and the app worked like a charm! Thanks--this made my day.
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