[MacPorts] #68071: py37-coverage: ImportError: cannot import name 'Protocol' from 'typing' (was: py37-coverage: missed dependency)

[MacPorts]

#68071: py37-coverage: ImportError: cannot import name 'Protocol' from 'typing'
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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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Ticket URL: <https://trac.macports.org/ticket/68071#comment:7>
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