Ригистрация, учусь работать с БД

simpleRigistartion.py

import sqlite3

conn =  sqlite3.connect('date.db')
cur = conn.cursor()

cur.execute("""CREATE TABLE IF NOT EXISTS users(
               id INTEGER PRIMARY KEY AUTOINCREMENT,
               name TEXT,
               password TEXT);""")
conn.commit()

def rigistration():
    global conn
    global cur

    login = input("Input your login\n> ")

    check = cur.execute('SELECT * FROM users WHERE name=?', (login, ))

    if check.fetchone() is None: 
        password      = input("Input your password\n> ")
        passwordCheck = input("Input password again\n> ")

        if password == passwordCheck:
            inp = (login,password)
            cur.execute("INSERT INTO users(name,password) VALUES(?,?)",inp)
            conn.commit()
            print("All right, you are registered!")
        else:
            print("Oops,you entered two different passwords. Please try again.")

    else:
      print('Login busy')

rigistration()

Password must be stored in hash (not plaintext). Hash is string that always has certain length, which is unique for each set of bits. For example passwords in (GNU/)Linux-based systems are stored in /etc/shadow in hash. For example sha1 from string a is 3f786850e387550fdab836ed7e6dc881de23001b, but sha1sum from string a (previous string with space at end) is 8094deb9fe1d7d15598a8e7b876e151810630635. I recommend to use sha512 hash function (is available in most modern Unix-like systems by default using sha512sum command from terminal)

Sorry for my English

c

Я же написал, что просто учусь работать с бд, да это и было-то когда.