[MacPorts] #60127: pybombs: portindex fails

[MacPorts]

#60127: pybombs: portindex fails
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  Reporter:  dbevans  |      Owner:  michaelld
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  pybombs  |
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Comment (by jmroot):

 It's relying on the default value of python.default_version (which just
 changed) to correspond to one of the declared variants. There's no
 python38 variant.

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Ticket URL: <https://trac.macports.org/ticket/60127#comment:1>
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