[MacPorts] #55814: py-isodate: restore py34 subport

[MacPorts]

#55814: py-isodate: restore py34 subport
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  Reporter:  dbevans     |      Owner:  esafak
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  py-isodate  |
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Comment (by dbevans):

 I was thinking that it was a bit early to start removing py34 subports.
 Many ports have +python34 variants as yet and we still haven't gotten rid
 of all the py26's and py33's yet.

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Ticket URL: <https://trac.macports.org/ticket/55814#comment:2>
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