When I open IDLE, it opens the window, but then shows a pop-up saying “IDLE’s subprocess didn’t make connection. Either IDLE can’t start a subprocess or personal firewall software is blocking the connection.” I tried restarting my computer (I’m running python on linux), but it still isn’t working.
https://docs.python.org/3/library/idle.html#startup-failure
What command are you giving to launch IDLE?
You might try:
python3 -m idlelib
and see if you get the same error.
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