[MacPorts] #63487: py39-mitmproxy and py38-mitmproxy won't run after install

[MacPorts]

#63487: py39-mitmproxy and py38-mitmproxy won't run after install
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  Reporter:  CodingMarkus  |      Owner:  petrrr
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:
      Port:  py-mitmproxy  |
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Comment (by reneeotten):

 there was a [https://github.com/macports/macports-ports/pull/10972 PR]
 doing (some) of the needed update, but was never finished to properly deal
 with the older Python subports. It might be a good starting point for you
 though and it would be great if you could finish up that PR.

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Ticket URL: <https://trac.macports.org/ticket/63487#comment:2>
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