[Python-checkins] [python/cpython] 50dbf5: bpo-23890: Fix ref cycle in TestCase.assertRaises ...

[GitHub]

  Branch: refs/heads/3.6
  Home:   https://github.com/python/cpython
  Commit: 50dbf577e10f806056d60ac956db0748d2cc8257
      https://github.com/python/cpython/commit/50dbf577e10f806056d60ac956db0748d2cc8257
  Author: Victor Stinner <victor.stinner at gmail.com>
  Date:   2017-06-16 (Fri, 16 Jun 2017)

  Changed paths:
    M Lib/unittest/case.py
    M Lib/unittest/test/test_case.py
    M Misc/NEWS

  Log Message:
  -----------
  bpo-23890: Fix ref cycle in TestCase.assertRaises (#858)

unittest.TestCase.assertRaises() now manually breaks a
reference cycle to not keep objects alive longer than expected.
(cherry picked from commit bbd3cf8f1ef1e91a8d6dac6411e18b4b9084abf5)