How to display all groups (users) that are in the OS (ubuntu)?

Question

linux

Good afternoon, I'm trying to display all the groups that are in Linux OS

import os,grp,pwd

#выводит пользователя
#for p in pwd.getpwall():
 #   print (p[0])
 
#таким образом выводит группы только для конкретного юзера   
for g in grp.getgrnam('asterisk'):
    print (g)

The script displays groups only for a specific user, how to display all the groups that are in the OS?

Answer 1

https://docs.python.org/3/library/grp.html#grp.getgrall
grp.getgrall()