[MacPorts] #58831: select.poll() not available in Python 3.x but present in Python 2.7

[MacPorts]

#58831: select.poll() not available in Python 3.x but present in Python 2.7
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  Reporter:  reneeotten            |      Owner:  (none)
      Type:  defect                |     Status:  new
  Priority:  Normal                |  Milestone:
 Component:  ports                 |    Version:
Resolution:                        |   Keywords:
      Port:  python3 py-wurlitzer  |
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Comment (by jmroot):

 The configure check seems to be only for a really severely broken poll. On
 < 10.9 it "works", it just burns a lot of CPU unnecessarily.

 I agree it's probably OK to re-enable on 10.9+ at least. On < 10.9, the
 way forward is less clear: this one module would work (badly), but maybe
 other modules work better when they choose kqueue or select instead due to
 poll being unavailable. TBH, wurlitzer should be using the selectors
 module for its I/O multiplexing anyway; relying on poll alone really
 limits portability. (Even just within macOS, Apple's python still disables
 poll to this day.)

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Ticket URL: <https://trac.macports.org/ticket/58831#comment:5>
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