[MacPorts] #53239: Add Python 3.6 to py-lxml

[MacPorts]

#53239: Add Python 3.6 to py-lxml
--------------------------+----------------------
  Reporter:  radarhere    |      Owner:
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.5
Resolution:               |   Keywords:  haspatch
      Port:  py-lxml      |
--------------------------+----------------------
Changes (by radarhere):

 * Attachment "Portfile-py-lxml.diff" added.


--
Ticket URL: <https://trac.macports.org/ticket/53239>
MacPorts <https://www.macports.org/>
Ports system for macOS