Hello All, 
I have read a lot of cases and uses cases about web2py users. 
But my case is a little différent ; 
I would like to 
List | Create  | Modify and Delete Users directly from Python controller without using HMI
My user db is always the same 
login 1 is user0
login 2 is user1
and I can have a lot of users but user0 and user1 are always here 
1) List all users by id and username without user0 and user1 
    try :
        listusers = db(db.auth.............
        if len(listusers) == 0:
    except Exception as e:
        listusers = []
2) Create a user with a mail / login / and Password directly using python method in the controller with the db (without the GUI) 
3) Modify a password of an already created user directly using python method in the controller with the db (without the gui) 
Note : I have already the id and/or the username of the user 
4) Delete an already created user directly using python method  in the controller with the db (without the gui) 
Note : I have already the id and/or the username of the user 
Thanks in advance 
Regards