53 def verify_users(users):  argument
54     for u in users:
61 def chcat_user_add(newcat, users):  argument
66     verify_users(users)
67     for u in users:
141 def chcat_user_remove(newcat, users):  argument
146     verify_users(users)
147     for u in users:
227 def chcat_user_replace(newcat, users):  argument
232     verify_users(users)
233     for u in users:
373 def listusercats(users):  argument
374     if len(users) == 0:
376             users.append(os.getlogin())
378             users.append(pwd.getpwuid(os.getuid()).pw_name)
380     verify_users(users)
381     for u in users: