[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2245: fix current pyflakes warnings

[Tahoe-LAFS]

#2245: fix current pyflakes warnings
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     Reporter:  warner  |      Owner:
         Type:  defect  |     Status:  new
     Priority:  minor   |  Milestone:  1.11.0
    Component:  code    |    Version:  1.10.0
   Resolution:          |   Keywords:
Launchpad Bug:          |
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Comment (by zooko):

 Reviewed attachment:hush-pyflakes.diff - LGTM.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2245#comment:1>
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