Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok.
Mention setuptools & wheel as key terms for distribution
Issue #21477: Idle htest: modify run; add more tests.
Patch by Saimadhav Heblikar. 2.7 version will follow.
Issue 13355:  Make random.triangular degrade gracefully when low == high.
Issue 21558:  Fix a typo in the contextlib docs