Terry J. Reedy <tjre...@udel.edu> added the comment:
After hours of failure to understand crazy 'impossible' behavior, I went back
to 'timing issue' and this code.
def run_module_event(self, event):
if macosx.isCocoaTk():
# Tk-Cocoa in MacOSX is broken until at least
# Tk 8.5.9, and without this rather
# crude workaround IDLE would hang when a user
# tries to run a module using the keyboard shortcut
# (the menu item works fine).
self.editwin.text_frame.after(200,
lambda: self.editwin.text_frame.event_generate(
'<<run-module-event-2>>'))
return 'break'
else:
return self._run_module_event(event)
When I used the Run menu instead of F5, the problem went away. The problem
also went away when I added 'and 0' to the condition above to disable the
workaround. 3.8 also works fine with the workaround disabled. Ned, if you
verify enough to agree, I will get rid of the wrapper and remove the leading
'_' from the real handler.
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<https://bugs.python.org/issue42508>
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