groupgrp = grp.getgrnam(group)
assert usergrp.gr_gid != groupgrp.gr_gid
print("{0}:x:{1}:{2}".format(groupgrp.gr_name, groupgrp.gr_gid, name), file=f)
groupgrp = grp.getgrnam(group)
assert usergrp.gr_gid != groupgrp.gr_gid
print("{0}:x:{1}:{2}".format(groupgrp.gr_name, groupgrp.gr_gid, name), file=f)