[MacPorts] #63442: py39-black @21.8b0_0: No matching distribution found for setuptools_scm~=6.0.1

[MacPorts]

#63442: py39-black @21.8b0_0: No matching distribution found for
setuptools_scm~=6.0.1
-----------------------+----------------------
  Reporter:  JD-Veiga  |      Owner:  danchr
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:
      Port:  py-black  |
-----------------------+----------------------

Comment (by JD-Veiga):

 Hi,

 I have updated to last version of `setuptools-scm` (6.3.1, released just
 yesterday) and `py39-black` has been upgraded without any inconvenience.
 So I suppose that it was a bug in `setuptools-scm`.

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Ticket URL: <https://trac.macports.org/ticket/63442#comment:2>
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