Roundup Robot added the comment:
New changeset 82bcc626ffd4 by Benjamin Peterson in branch '3.3':
fix test_posix.test_initgroups to work without supplemental groups (closes
#20249)
http://hg.python.org/cpython/rev/82bcc626ffd4
New changeset 1fbec1c44911 by Benjamin Peterson in branch '2.7':
fix
New submission from Chris Angelico:
When tests are run from an Upstart job in a minimal environment,
test_posix.test_initgroups fails as it attempts to find the max() of an empty
list of supplementary groups.
Problem sighted with 2.7, 3.3, and 3.x branches. Patch derived from 3.x
(default bra