[tahoe-lafs-trac-stream] [tahoe-lafs] #974: provide user-friendly error message if the CLI can't connect to the gateway

[tahoe-lafs]

#974: provide user-friendly error message if the CLI can't connect to the gateway
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     Reporter:  zooko     |      Owner:  amiller
         Type:  defect    |     Status:  new
     Priority:  major     |  Milestone:  1.10.0
    Component:  code-     |    Version:  1.6.0
  frontend-cli            |   Keywords:  usability easy error review-needed
   Resolution:            |
Launchpad Bug:            |
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Changes (by amiller):

 * keywords:  usability easy error test-needed => usability easy error
     review-needed


Comment:

 I used guyzmo's patch except for catching the exception within do_http, as
 per comment:13. Added a unit test based on suggestions from comment:9

 https://github.com/amiller/tahoe-lafs/pull/3.patch

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/974#comment:17>
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