[MacPorts] #54659: py34-flake8 version: 3.3.0_1 Update requires.txt entry for pyflakes version

[MacPorts]

#54659: py34-flake8  version: 3.3.0_1   Update requires.txt entry for pyflakes
version
--------------------------+----------------------
  Reporter:  gean         |      Owner:
      Type:  update       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.4.1
Resolution:               |   Keywords:  pyflakes
      Port:  py34-flake8  |
--------------------------+----------------------
Changes (by gean):

 * Attachment "Macports_exception__py34-flake8" added.

 Exception occurs when running flake8-3.4

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Ticket URL: <https://trac.macports.org/ticket/54659>
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