SQLAlchemy を使って SQLite データベースの注文ステータスを更新するためのサンプルコードです：

```
from sqlalchemy import create_engine, Column, Integer, String, ForeignKey
from sqlalchemy.orm import relationship, sessionmaker
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()

class Order(Base):
    __tablename__ = 'orders'
    orderID = Column(Integer, primary_key=True)
    customerID = Column(Integer, ForeignKey('customers.customerID'))
    orderDate = Column(String)
    orderTotal = Column(String)
    orderStatus = Column(String)
    
    customer = relationship("Customer", back_populates="orders")

class Customer(Base):
    __tablename__ = 'customers'
    customerID = Column(Integer, primary_key=True)
    customerName = Column(String)
    customerAddress = Column(String)
    customerEmail = Column(String)
    
    orders = relationship("Order", back_populates="customer")

def update_order_status(orderID, orderStatus):
    engine = create_engine('sqlite:///orders.db')
    Session = sessionmaker(bind=engine)
    session = Session()
    
    order = session.query(Order).filter_by(orderID=orderID).first()
    order.orderStatus = orderStatus
    session.commit()
    session.close()

```
Here's a sample code to help you update the order status in the SQLite database using SQLAlchemy:

```
from sqlalchemy import create_engine, Column, Integer, String, ForeignKey
from sqlalchemy.orm import relationship, sessionmaker
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()

class Order(Base):
    __tablename__ = 'orders'
    orderID = Column(Integer, primary_key=True)
    customerID = Column(Integer, ForeignKey('customers.customerID'))
    orderDate = Column(String)
    orderTotal = Column(String)
    orderStatus = Column(String)
    
    customer = relationship("Customer", back_populates="orders")

class Customer(Base):
    __tablename__ = 'customers'
    customerID = Column(Integer, primary_key=True)
    customerName = Column(String)
    customerAddress = Column(String)
    customerEmail = Column(String)
    
    orders = relationship("Order", back_populates="customer")

def update_order_status(orderID, orderStatus):
    engine = create_engine('sqlite:///orders.db')
    Session = sessionmaker(bind=engine)
    session = Session()
    
    order = session.query(Order).filter_by(orderID=orderID).first()
    order.orderStatus = orderStatus
    session.commit()
    session.close()

```