[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3035: Turn python2 checks from errors into warnings

[Tahoe-LAFS]

#3035: Turn python2 checks from errors into warnings
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 Reporter:  heartsucker  |          Owner:
     Type:  defect       |         Status:  new
 Priority:  normal       |      Milestone:  Support Python 3
Component:  unknown      |        Version:  1.12.1
 Keywords:               |  Launchpad Bug:
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 There are some explicit checks that the python version is 3 or greater. We
 should change these from errors to warnings printed to stderr to allow us
 to start testing python3 compatibility.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3035>
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