[MacPorts] #54450: py-docker @1.8.1: Update to 2.4.2

[MacPorts]

#54450: py-docker @1.8.1: Update to 2.4.2
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  Reporter:  zdw        |      Owner:
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  haspatch
      Port:  py-docker  |
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Comment (by zdw):

 Replying to [comment:2 mf2k]:
 > Please add py36.

 Done

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Ticket URL: <https://trac.macports.org/ticket/54450#comment:5>
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