[MacPorts] #37410: py-mayavi version update to 4.2.0

[MacPorts]

#37410: py-mayavi version update to 4.2.0
---------------------------------+--------------------------------
 Reporter:  jjstickel@…          |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.1.2
 Keywords:  maintainer haspatch  |       Port:  py-mayavi
---------------------------------+--------------------------------
 Portfile patch and new patchfile attached. I have tested this port.

-- 
Ticket URL: <https://trac.macports.org/ticket/37410>
MacPorts <http://www.macports.org/>
Ports system for Mac OS