[tor-bugs] #26739 [Core Tor/Stem]: SyntaxError with python 3.6 and above

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#26739: SyntaxError with python 3.6 and above
-------------------------------+--------------------
     Reporter:  atagar         |      Owner:  atagar
         Type:  defect         |     Status:  new
     Priority:  High           |  Milestone:
    Component:  Core Tor/Stem  |    Version:
     Severity:  Major          |   Keywords:
Actual Points:                 |  Parent ID:
       Points:                 |   Reviewer:
      Sponsor:                 |
-------------------------------+--------------------
 Great catch from Juan...

 {{{
 BUILDSTDERR:   File "/usr/lib/python3.7/site-
 packages/stem/util/test_tools.py", line 151
 BUILDSTDERR:     self.method.async = self
 BUILDSTDERR:                     ^
 BUILDSTDERR: SyntaxError: invalid syntax
 }}}

 Took a little head scratching but think I know what's going on. Python 3.6
 added a couple new keywords including 'async' and 'await'. This in turn
 breaks the above since we were using that name.

 https://docs.python.org/3/whatsnew/3.6.html#whatsnew36-pep530
 https://www.python.org/dev/peps/pep-0530/

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26739>
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