[root@CURRENT-amd64:/usr/home/koobs/repos/freebsd/ports] su -l buildbot
$ whoami
buildbot
$ groups
buildbot
$ python3.5
Python 3.5.2 (default, Aug 13 2016, 04:12:16)
[GCC 4.2.1 Compatible FreeBSD Clang 3.8.0 (tags/RELEASE_380/final 262564)] on freebsd12
Type "help", "copyright", "credits" or "license" for more information.
>>> import getpass
>>> import grp
>>> import pprint
>>>
>>> pprint.pprint(getpass.getuser())
'buildbot'
>>> pprint.pprint([(g.gr_gid, g.gr_name) for g in grp.getgrall()])
[(0, 'wheel'),
 (1, 'daemon'),
 (2, 'kmem'),
 (3, 'sys'),
 (4, 'tty'),
 (5, 'operator'),
 (6, 'mail'),
 (7, 'bin'),
 (8, 'news'),
 (9, 'man'),
 (13, 'games'),
 (14, 'ftp'),
 (20, 'staff'),
 (22, 'sshd'),
 (25, 'smmsp'),
 (26, 'mailnull'),
 (31, 'guest'),
 (44, 'video'),
 (53, 'bind'),
 (59, 'unbound'),
 (62, 'proxy'),
 (63, 'authpf'),
 (64, '_pflogd'),
 (65, '_dhcp'),
 (66, 'uucp'),
 (68, 'dialer'),
 (69, 'network'),
 (77, 'audit'),
 (80, 'www'),
 (160, '_ypldap'),
 (845, 'hast'),
 (65533, 'nogroup'),
 (65534, 'nobody'),
 (1001, 'koobs'),
 (60, 'cyrus'),
 (126, 'maildrop'),
 (125, 'postfix'),
 (1002, 'buildbot'),
 (964, 'git_daemon'),
 (216, 'nsd'),
 (535, 'redis'),
 (616, 'taskd')]
>>> pprint.pprint([(g.gr_gid, g.gr_name, g.gr_mem) for g in grp.getgrall() if getpass.getuser() in g.gr_mem])
[]
>>>