尝试使用sqlachemy python中的date.today()进行筛选时出现参数错误

from datetime import datetime, date
from sqlalchemy import create_engine, Column, Integer, String, Date
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base

# 创建数据库连接
engine = create_engine('数据库连接字符串')
Session = sessionmaker(bind=engine)
session = Session()

# 创建模型类
Base = declarative_base()

class MyModel(Base):
    __tablename__ = 'my_table'
    id = Column(Integer, primary_key=True)
    name = Column(String)
    date = Column(Date)

# 获取今天的日期
today = date.today()

# 将日期对象转换为datetime对象
today_datetime = datetime.combine(today, datetime.min.time())

# 使用转换后的datetime对象进行筛选
results = session.query(MyModel).filter(MyModel.date >= today_datetime).all()