#16897: merge with 3.3.

diff --cc Misc/NEWS
index 8e49199bdc65479bcb1a4931fd216339107010ba,e9c7d9e86c7ba02f5b9e0b199b9991a737f86217..7b85b1b05e022c1ca3637850b3aec8289d2a2487
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -612,8 -408,9 +612,11 @@@ Extension Module
  Tests
  -----
  
 +- Issue #16836: Enable IPv6 support even if IPv6 is disabled on the build host.
 +
+ - Issue #16897: test_bisect now works with unittest test discovery.
+   Initial patch by Zachary Ware.
+ 
  - Issue #16852: test_genericpath, test_posixpath, test_ntpath, and test_macpath
    now work with unittest test discovery.  Patch by Zachary Ware.