[MacPorts] #53207: Update for python 3.6

[MacPorts]

#53207: Update for python 3.6
----------------------+-----------------
 Reporter:  manuSrep  |      Owner:
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:            |       Port:
----------------------+-----------------
 The title says it. Please, can someone do so?

--
Ticket URL: <https://trac.macports.org/ticket/53207>
MacPorts <https://www.macports.org/>
Ports system for macOS