Why does not save the database?

Question

Python

The problem is that in one part of the code the output is 1 (example below), and in the other 0, that is, for some reason the database is not updated

con = sqlite3.connect("orders.db")
        cur = con.cursor()
        cur.execute(f"SELECT users FROM st;")
        users = cur.fetchone()[0]
        print(users)
        us = users+1
        print(us) #тут вывод 0
        cur.execute(f"UPDATE st SET users = {us};")
        conn.commit()
        cur.execute(f"select users from st")
        users1 = cur.fetchone()[0]
        print(users1) #тут вывод 1

Answer 1

I can say one thing
just did not save

con = sqlite3.connect("orders.db")#тут con
 cur = con.cursor()#тут тоже con
conn.commit()#а тут conn

Answer 2

I suppose that here
cur.execute(f"UPDATE st SET users = {us};")
you insert a number into users, and in the database there is a string type. The commit does not work and what was displayed is displayed.
Check the types in the database and those that you contribute.