有人在Scrapy中有sqlite管道的示例代码吗？

ITEM_PIPELINES = {
    'myproject.pipelines.SQLitePipeline': 300,
}

SQLITE_DATABASE = 'data.db'

import sqlite3

class SQLitePipeline(object):
    def __init__(self, sqlite_database):
        self.sqlite_database = sqlite_database

    @classmethod
    def from_crawler(cls, crawler):
        return cls(
            sqlite_database=crawler.settings.get('SQLITE_DATABASE')
        )

    def open_spider(self, spider):
        self.connection = sqlite3.connect(self.sqlite_database)
        self.cursor = self.connection.cursor()
        self.cursor.execute('CREATE TABLE IF NOT EXISTS items (id INTEGER PRIMARY KEY, name TEXT, price REAL)')

    def close_spider(self, spider):
        self.connection.commit()
        self.connection.close()

    def process_item(self, item, spider):
        self.cursor.execute('INSERT INTO items (name, price) VALUES (?, ?)', (item['name'], item['price']))
        return item