此Python类应该查询SQLite数据库：

import sqlite3

class Database:
    def __init__(self):
        self.connection = sqlite3.connect('devel.db')
        self.cursor = self.connection.cursor()
        self.connection.commit()
    
    def query(self, query, params=()):
        if params == ():
            self.cursor.execute(query)
        else:
            self.cursor.execute(query, params)
        self.connection.commit()
        return True
    
    def select(self, query, params=()):
        if params == ():
            self.cursor.execute(query)
        else:
            self.cursor.execute(query, params)
        return self.cursor.fetchall()

id = 1
Database.select("SELECT * FROM users WHERE id = ?", (id,))

它提供了：
AttributeError：“Str”对象没有属性“”Cursor“”
我还尝试了self.connection.cursor()而不是self.cursor。