[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2436: "tahoe --version" shouldn't show scary diagnostic warnings

[Tahoe-LAFS]

#2436: "tahoe --version" shouldn't show scary diagnostic warnings
-------------------------+-------------------------------------------------
     Reporter:  warner   |      Owner:  zooko
         Type:  defect   |     Status:  reopened
     Priority:  normal   |  Milestone:  1.10.2
    Component:           |    Version:  1.10.0
  packaging              |   Keywords:  error packaging setuptools review-
   Resolution:           |  needed
Launchpad Bug:           |
-------------------------+-------------------------------------------------
Changes (by daira):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 Oops, I just spotted a bug. `get_package_versions_string` extends
 `_vers_and_locs_list` each time it is called (assuming `not hasattr(sys,
 'frozen')`), but it may be called more than once.

 I will fix it.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2436#comment:14>
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