[MacPorts] #63478: Introduce pyXX-youtube-dl instead of variants

[MacPorts]

#63478: Introduce pyXX-youtube-dl instead of variants
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 Reporter:  catap   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:
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 youtube-dl is also can be used inside some application as plugin.

 Right now I can't add to my beets port a plugin
 https://github.com/vmassuchetto/beets-ydl because it required to setup
 youtube-dl with the right version of python.

 Right now  youtube-dl  uses variants to configure the python version and
 migrate to select group and pyXX-youtube-dl seems as logical and standard
 way.

 Thanks!

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Ticket URL: <https://trac.macports.org/ticket/63478>
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