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from flask import Flask, render_template, url_for, request, g
import sqlite3

DATABASE = 'my_database.db'

app = Flask(__name__)

connection = sqlite3.connect('my_database.db')
cursor = connection.cursor()


def get_db():
    db = getattr(g, '_database', None)
    if db is None:
        db = g._database = sqlite3.connect(DATABASE)
    return db


cursor.execute('''
CREATE TABLE IF NOT EXISTS Comments (
username TEXT NOT NULL,
comment TEXT NOT NULL
)
''')

if input("1 - Записать нового пользователя\n2 - Удалить определённого пользователя\nВвод: ") == '1':
    username = input("Введите имя: ")
    text = input("Введите текст: ")
    print(f"{username} - {text}")
    cursor.execute(f'INSERT INTO Comments (username, comment) VALUES ("{username}", "{text}")')
    data = cursor.fetchall()
else:
    username = input("Введите имя пользователя, которое хоттите удалить: ")
    cursor.execute(f'DELETE FROM Comments WHERE username = "{username}"')


cursor.execute(f'SELECT * FROM Comments')
print(cursor.fetchall())

@app.teardown_appcontext
def close_connection(exception):
    db = getattr(g, '_database', None)
    if db is not None:
        db.close()


if __name__ == "__main__":
    app.run(debug=True)
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