print(data)
print(dbuser)
print(username)

 # ./auth.py 
-------------------------
<<<<<<<<<Welcome>>>>>>>>>
-------------------------
Username:659605758501
(659605758501, 'd399dc6259ca2df564e0b939abc334ffd77e41d8')
659605758501
659605758501
please try another user name. This user name is incorrect

  
username = 'john'
 
name_id_dct = {
    'john': 659605758501,
    'mary': 659605758502,
}
 
userid = name_id_dct[username]
 
cursor.execute("SELECT userID, password from db")
data = cursor.fetchone()
dbuserid, dbpass = data
if userid == dbuserid and password == dbpass:
    print('Ok')
else:
    print('Fail')

 # ./auth.py 
-------------------------
<<<<<<<<<Welcome>>>>>>>>>
-------------------------
Username:659605758501
(659605758501, 'd399dc6259ca2df564e0b939abc334ffd77e41d8')
659605758501
659605758501
Enter secret password:
Ok

 print(type(dbuser))
print(type(username))

 <class 'int'>
<class 'str'>