• Sqlite3 Как проверить существование записи?

    @kwarsk
    Здрвствуйте, помогите пожалуйста, вот код:
    import telebot
    import sqlite3
    conn = sqlite3.connect('adcadczscbd.sqlite3', check_same_thread=False)
    cursor = conn.cursor()

    bot = telebot.TeleBot("5739726750:AAE1ysradDAVUfAwGNRyhlObyoj6i4TR7CU")
    @bot.message_handler(commands=['register'])
    def get_text_messages(message):
    usernam = message.from_user.username
    data = cursor.execute(f"SELECT * FROM users WHERE usernames = {usernam}").fetchone()
    if data is None:
    username = [message.from_user.username]
    cursor.execute("INSERT INTO users VALUES (?)", username)
    conn.commit()
    bot.reply_to(message, 'Поздравляю! Ты зарегистрировался')
    else:
    bot.reply_to(message, 'Ты уже зарегистрирован')

    bot.infinity_polling(none_stop=True, timeout=0)

    А вот вывод:
    2022-11-23 09:22:02,205 (__init__.py:964 MainThread) ERROR - TeleBot: "Infinity polling exception: no such column: kwarsk"
    2022-11-23 09:22:02,208 (__init__.py:966 MainThread) ERROR - TeleBot: "Exception traceback:
    Traceback (most recent call last):
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\__init__.py", line 959, in infinity_polling
    self.polling(non_stop=True, timeout=timeout, long_polling_timeout=long_polling_timeout,
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\__init__.py", line 1047, in polling
    self.__threaded_polling(non_stop=non_stop, interval=interval, timeout=timeout, long_polling_timeout=long_polling_timeout,
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\__init__.py", line 1122, in __threaded_polling
    raise e
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\__init__.py", line 1078, in __threaded_polling
    self.worker_pool.raise_exceptions()
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\util.py", line 154, in raise_exceptions
    raise self.exception_info
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\util.py", line 98, in run
    task(*args, **kwargs)
    File "C:\Users\limba\AppData\Roaming\Python\Python310\site-packages\telebot\__init__.py", line 6086, in _run_middlewares_and_handler
    result = handler['function'](message)
    File "E:\Bot\adcadczsc.py", line 10, in get_text_messages
    data = cursor.execute(f"SELECT * FROM users WHERE usernames = {usernam}").fetchone()
    sqlite3.OperationalError: no such column:
    Ответ написан
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