[tor-bugs] #30274 [Core Tor/sbws]: Do not scale relays' bandwidth when there is not descriptor

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#30274: Do not scale relays' bandwidth when there is not descriptor
-------------------------------+-------------------------------
     Reporter:  juga           |      Owner:  (none)
         Type:  defect         |     Status:  new
     Priority:  Medium         |  Milestone:  sbws: 1.1.x-final
    Component:  Core Tor/sbws  |    Version:  sbws: 1.1.0
     Severity:  Normal         |   Keywords:  generate
Actual Points:                 |  Parent ID:
       Points:  1              |   Reviewer:
      Sponsor:                 |
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 Sometimes sbws does not get the descriptor for a relay that is in the
 consensus.
 This might be due #29716.
 I was hoping to make a refactor before changing this, but since
 refactoring would take longer, this should be fixed first.

 {{{
 Traceback (most recent call last):
   File "/usr/bin/sbws", line 11, in <module>
     load_entry_point('sbws==1.1.0.dev0', 'console_scripts', 'sbws')()
   File "/usr/lib/python3/dist-packages/sbws/sbws.py", line 75, in main
     exit(comm['f'](*comm['a'], **comm['kw']))
   File "/usr/lib/python3/dist-packages/sbws/core/generate.py", line 119,
 in main
     consensus_path=consensus_path)
   File "/usr/lib/python3/dist-packages/sbws/lib/v3bwfile.py", line 951, in
 from_results
     torflow_cap, round_digs)
   File "/usr/lib/python3/dist-packages/sbws/lib/v3bwfile.py", line 1248,
 in bw_torflow_scale
     desc_bw = min(desc_bw_obs, l.desc_bw_avg)
 TypeError: '<' not supported between instances of 'NoneType' and
 'NoneType'
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30274>
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