[MacPorts] #68071: py37-coverage: missed dependency

[MacPorts]

#68071: py37-coverage: missed dependency
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  Reporter:  catap          |      Owner:  reneeotten
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  py37-coverage  |
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Comment (by petrrr):

 This is not a missing dependency, it is a version incompatibility.
 coverage @7.3.0 is declared to be compatible with Python >= 3.8.

 `typing` is part of the standard lib and `typing.Protocol` was introduces
 with version 3.8, see https://docs.python.org/3/library/typing.html

 Probably we just can remove obsolete subports.

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Ticket URL: <https://trac.macports.org/ticket/68071#comment:1>
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