[MacPorts] #67046: Either python or py-prompt_toolkit is broken on Leopard: KeyError: '0 is not registered' when trying to run dependents

[MacPorts]

#67046: Either python or py-prompt_toolkit is broken on Leopard: KeyError: '0 is
not registered' when trying to run dependents
--------------------------+----------------------
 Reporter:  barracuda156  |      Owner:  xeron
     Type:  defect        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.8.1
 Keywords:                |       Port:
--------------------------+----------------------
 Example is with trying to run `ptpython`, however the error is not in it,
 since another port, `radian`, also depending on `py-prompt_toolkit`, fails
 identically.

 {{{
 Last login: Mon Mar  6 04:05:32 on ttys000
 36-137:~ svacchanda$ ptpython
 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/selector_events.py",
 line 256, in _add_reader
     key = self._selector.get_key(fd)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/selectors.py",
 line 193, in get_key
     raise KeyError("{!r} is not registered".format(fileobj)) from None
 KeyError: '0 is not registered'

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/ptpython/repl.py", line 135, in run
     text = self.read()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/ptpython/python_input.py", line 1045, in read
     result = self.app.run(pre_run=pre_run, in_thread=True)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/application/application.py", line 961, in
 run
     raise exception
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/application/application.py", line 939, in
 run_in_thread
     result = self.run(
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/application/application.py", line 978, in
 run
     return loop.run_until_complete(
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/base_events.py",
 line 649, in run_until_complete
     return future.result()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/application/application.py", line 885, in
 run_async
     return await _run_async(f)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/application/application.py", line 737, in
 _run_async
     with self.input.raw_mode(), self.input.attach(
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/contextlib.py",
 line 135, in __enter__
     return next(self.gen)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10
 /site-packages/prompt_toolkit/input/vt100.py", line 176, in
 _attached_input
     loop.add_reader(fd, callback_wrapper)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/selector_events.py",
 line 331, in add_reader
     self._add_reader(fd, callback, *args)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/selector_events.py",
 line 258, in _add_reader
     self._selector.register(fd, selectors.EVENT_READ,
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/selectors.py",
 line 523, in register
     self._selector.control([kev], 0, 0)
 OSError: [Errno 45] Operation not supported
 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/selector_events.py",
 line 256, in _add_reader
     key = self._selector.get_key(fd)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/selectors.py",
 line 193, in get_key
     raise KeyError("{!r} is not registered".format(fileobj)) from None
 KeyError: '0 is not registered'
 }}}

 This repeats in a loop then.
 Initially I faced the error on 10.6, however it is now confirmed on
 10.5.8, so I can open a legitimate ticket.

-- 
Ticket URL: <https://trac.macports.org/ticket/67046>
MacPorts <https://www.macports.org/>
Ports system for macOS