[MacPorts] #53874: py-csvkit Python 3.6 support

[MacPorts]

#53874: py-csvkit Python 3.6 support
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 Reporter:  mohd-akram  |      Owner:
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  py-csvkit
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 Add support for Python 3.6.

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Ticket URL: <https://trac.macports.org/ticket/53874>
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