[MacPorts] #40207: py-pyface: use proper variant(s) for wxPython

[MacPorts]

#40207: py-pyface: use proper variant(s) for wxPython
--------------------------+--------------------------------
  Reporter:  jjstickel@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  reopened
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  wxwidgets haspatch
      Port:  py-pyface    |
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Comment (by jjstickel@…):

 How about:
 {{{
     variant wxpython30 conflicts wxpython28 description {Use wxWidgets-3.0
 (cocoa) backend} {
         depends_lib-append      port:py${python.version}-wxpython-3.0
         notes-append "Warning: wxpython-3.0 is not fully compatible with
 pyface, but the wxpython30 variant exists for testing and future use.\n"
     }

     variant wxpython28 conflicts wxpython28 description {Use wxWidgets-2.8
 (gtk or carbon) backend} {
         depends_lib-append      port:py${python.version}-wxpython-2.8
     }
 }}}
 This leaves it to the user to properly select the appropriate variant
 (gtk/carbon) for wxpython-2.8. If gtk is the default variant, then most
 people will be OK.

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Ticket URL: <https://trac.macports.org/ticket/40207#comment:17>
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