使用sqlalchemy在sqlite数据库中保存numpy整数

import numpy as np
from sqlalchemy import create_engine, Column, Integer
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

engine = create_engine('sqlite:///database.db')
Base = declarative_base(bind=engine)
Session = sessionmaker(bind=engine)
session = Session()

class NumpyInteger(Base):
    __tablename__ = 'numpy_integers'
    id = Column(Integer, primary_key=True)
    value = Column(Integer)

Base.metadata.create_all()

numpy_integer = np.int64(42)

db_integer = NumpyInteger(value=numpy_integer)
session.add(db_integer)
session.commit()