[MacPorts] #57605: py-xdg: Add python 3

[MacPorts]

#57605: py-xdg: Add python 3
-------------------------+----------------------
 Reporter:  mf2k         |      Owner:  lpsinger
     Type:  enhancement  |     Status:  assigned
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:  py-xdg
-------------------------+----------------------
 Please add python 36 and 37 to py-xdg.

-- 
Ticket URL: <https://trac.macports.org/ticket/57605>
MacPorts <https://www.macports.org/>
Ports system for macOS