Machine: new MacBook Air with M1 chip, running Big Sur
Downloaded: Python versions 2.7, 3.8, and 3.9
Situation: Programs run just fine IF I run them out of a terminal window (/usr/local/bin/python name-of-python-program). Also programs that use Tkinter windows and don't require a terminal window for input or output run properly.
Problem: Can't launch programs by double-clicking on them. When I try, Python Launcher starts and displays its preferences and there is a microsecond flash of something on the screen that appears to descend into the program icon that was clicked on. 
Note: Playing with a shebang in the program made no difference. Everything works fine when the programs are opened and run in IDLE.

That quick flash would be your terminal window if I have to guess (based on no Mac experience, but Windows).

William,

Thanks for your comment. I assumed the same thing, but it goes by so fast I am never sure..

> On Feb 3, 2021, at 10:27 PM, William Pickard <report@bugs.python.org> wrote:
> 
> 
> William Pickard <lollol222gg@gmail.com> added the comment:
> 
> That quick flash would be your terminal window if I have to guess (based on no Mac experience, but Windows).
> 
> ----------
> nosy: +WildCard65
> 
> _______________________________________
> Python tracker <report@bugs.python.org>
> <https://bugs.python.org/issue43122>
> _______________________________________

Thanks for the report. The problem here has finally been resolved in the fixes for Issue40477 which will be released in Python 3.9.10, 3.10.2, and 3.11.0a4. (Unfortunately, Python 3.8 is now in the "security-fix" phase of its release cycle; this issue doesn't qualify as a security problem and, in any case, only source releases are provided in this phase, no binary installers.)

Many thanks for notifying me that my issue is fixed in the latest updates. I will try to test this soon.

Kevin Weidenbaum

> On Jan 3, 2022, at 1:59 AM, Ned Deily <report@bugs.python.org> wrote:
> 
> 
> Change by Ned Deily <nad@python.org>:
> 
> 
> ----------
> Removed message: https://bugs.python.org/msg409563
> 
> _______________________________________
> Python tracker <report@bugs.python.org>
> <https://bugs.python.org/issue43122>
> _______________________________________