[MacPorts] #71287: Cyclic dependencies in MacPorts

[MacPorts]

#71287: Cyclic dependencies in MacPorts
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 Reporter:  szhorvat  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:            |       Port:
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 Recently a cyclic dependency was introduced in MacPorts.

 `py37-importlib-metadata` depends-lib on `py37-zipp`

 `py37-zipp` depends-build on `py37-setuptools-scm`

 `py37-setuptools-scm` depends-lib on `py37-importlib-metadata`

 This cycle wasn't present a couple of weeks ago (see #71182). It is only
 present for the py37 subports, not any of the later Python versions.

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Ticket URL: <https://trac.macports.org/ticket/71287>
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