[MacPorts] #65037: py39-platformdirs fails to locate installed dependencies

[MacPorts]

#65037: py39-platformdirs fails to locate installed dependencies
------------------------------+------------------------
  Reporter:  mouse07410       |      Owner:  reneeotten
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  py-platformdirs  |
------------------------------+------------------------

Comment (by mouse07410):

 I to don't know what to say... {{{PYTHONPATH}}} is not set.

 {{{

 $ port installed | grep hatch
   py38-hatch-vcs @0.2.0_1 (active)
   py38-hatchling @0.22.0_1 (active)
   py39-hatch-vcs @0.2.0_1 (active)
   py39-hatchling @0.22.0_1 (active)
   py310-hatch-vcs @0.2.0_1 (active)
   py310-hatchling @0.22.0_1 (active)
 $ port installed | grep setuptools
   py27-setuptools @44.1.1_0 (active)
   py38-setuptools @62.1.0_0 (active)
   py38-setuptools_scm @6.4.2_0 (active)
   py39-setuptools @62.1.0_0 (active)
   py39-setuptools_scm @6.4.2_0 (active)
   py310-setuptools @62.1.0_0 (active)
   py310-setuptools_scm @6.4.2_0 (active)
 }}}

 So, while some Python packages were indeed installed via {{{pip}}}, it
 looks like what's required by {{{py39-platformdirs}}} are installed by
 MacPorts.

 And again, I don't understand why Macports is trying to rebuild
 {{{py39-platformdirs}}} , rather than just download the binary created by
 buildbots.

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Ticket URL: <https://trac.macports.org/ticket/65037#comment:12>
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