[MacPorts] #57344: mpv dose not work niether variants nor info with Error: No python variant selected when variants.conf has +python37

[MacPorts]

#57344: mpv dose not work niether variants nor  info with Error: No python variant
selected when variants.conf has +python37
---------------------------+--------------------
 Reporter:  stanimura      |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.5.3
 Keywords:  variants.conf  |       Port:  mpv
---------------------------+--------------------
 info and variants dose not work for mpv
 {{{
 $ port info mpv
 Error: No python variant selected. You must select at least one. The
 highest value will be used.
 Error: Unable to open port: Select a python variant.
 }}}
 {{{
 $ port variants mpv
 Error: No python variant selected. You must select at least one. The
 highest value will be used.
 Error: Unable to open port: Select a python variant.
 }}}
 This happens when +python37 and -python27 are added to variants.conf.

 The solution is to edit Profile of mpv.
 {{{
 ---
 /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/multimedia/mpv/Portfile
 2018-10-08 22:35:29.000000000 +0900
 +++ mpv.Portfile        2018-10-11 18:51:19.000000000 +0900
 @@ -277,9 +277,9 @@


  # Shameless copy from ipe-tools.
 -set python.versions         {27 36}
 +set python.versions         {27 37}
  # Remove after 07-30-2018.
 -dict set python.legacy_versions 35 36
 +dict set python.legacy_versions 35 36 37
  set python.default_version  27
  set python.version          ""
 }}}

 This works both info and variants.
 With the edited Portfile, mpv can build and the resulted mpv works for me.

-- 
Ticket URL: <https://trac.macports.org/ticket/57344>
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