[issue26182] Deprecation warnings for the future async and await keywords in Python 3.6

[Brett Cannon]

Brett Cannon added the comment:

You need to temporarily turn on warnings for it to work. For example:

  with warnings.catch_warnings():
      warnings.simplefilter('always')
      with self.assertWarnsRegex(DeprecationWarning, "reserved keyword"):
        exec('async = 33')

Do notice I used exec() as otherwise the warning will be triggered at import instead of when the test runs.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26182>
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