[MacPorts] #42832: py-tornado @3.2: enable `py34` subport

[MacPorts]

#42832: py-tornado @3.2: enable `py34` subport
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  Reporter:  Peter.Danecek@…  |      Owner:  macports-tickets@…
      Type:  enhancement      |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  py-tornado       |
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Comment (by Peter.Danecek@…):

 Sorry, I realize the Description is not completely correct:

 The sub-port `py34-tornado` is required as dependency for `py34-ipython`
 when `+notebook` variant is requested.

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Ticket URL: <https://trac.macports.org/ticket/42832#comment:1>
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