[tor-bugs] #33957 [Core Tor/Chutney]: Unexpected keyword argument 'bufsize' in subprocess.check_output()

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#33957: Unexpected keyword argument 'bufsize' in subprocess.check_output()
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     Reporter:  teor              |      Owner:  (none)
         Type:  defect            |     Status:  new
     Priority:  Medium            |  Milestone:
    Component:  Core Tor/Chutney  |    Version:
     Severity:  Normal            |   Keywords:
Actual Points:                    |  Parent ID:
       Points:                    |   Reviewer:
      Sponsor:                    |
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 On some python versions, chutney's call to subprocess.check_output()
 results in the following error:
 {{{
 Unexpected keyword argument 'bufsize'…
 }}}
 https://github.com/torproject/chutney/pull/68#issuecomment-614596946

 The check_output() documentation is unclear about which arguments are
 supported: it simply says that most arguments to Popen() are supported.
 (And bufsize is an argument to Popen().):
 https://docs.python.org/3.5/library/subprocess.html#subprocess.check_output
 https://docs.python.org/3.5/library/subprocess.html#subprocess.Popen

 I think our best option here is to remove the bufsize argument, and accept
 the default buffered behaviour.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33957>
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