[MacPorts] #53262: Add Python 3.6 to py-flake8-mccabe

[MacPorts]

#53262: Add Python 3.6 to py-flake8-mccabe
-------------------------------+----------------------
  Reporter:  radarhere         |      Owner:
      Type:  enhancement       |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.3.5
Resolution:                    |   Keywords:  haspatch
      Port:  py-flake8-mccabe  |
-------------------------------+----------------------
Changes (by radarhere):

 * Attachment "Portfile-py-flake8-mccabe.diff" added.


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Ticket URL: <https://trac.macports.org/ticket/53262>
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