(Unix only) The grp
module provides an interface to the Unix group
database (/etc/group
). The
getgrgid
function returns data for a given group
identity (see Example 12-4), and getgrnam
returns data for a group name.
The getgrall
function returns a list of database
entries for all available groups.
If you’re going to do a lot of group queries, you can save some time
by using getgrall
to copy all the (current)
groups into a dictionary. The groupinfo
function in Example 12-5 returns the information for either a group
identifier (an integer) or a group name (a string).
Example 12-5. Using the grp Module to Cache Group Information
File: grp-example-2.py import grp import os # preload password dictionary _grp = {} for info in grp.getgrall(): _grp[info[0]] = _grp[info[2]] = info def groupinfo(gid): # name or gid integer return _grp[gid] print groupinfo(os.getgid()) print groupinfo("wheel")('effbot', '', 4711, ['effbot'])
('wheel', '', 10, ['root', 'effbot', 'gorbot', 'timbot'])
3.135.200.14