sqlalchemy multiple databases with same table names not working

I have two databases that I'm working with in with Python using SQLAlchemy, the databases share table names and therefore I'm getting an error message when running the code.

The error message is :

sqlalchemy.exc.InvalidRequestError: Table 'wo' is already defined for this MetaData instance.  Specify 'extend_existing=True' to redefine options and columns on an existing Table object.

The simplified code is below:

from sqlalchemy import create_engine, Column, Integer, String, DateTime, ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, relationship, backref
from mysql.connector.connection import MySQLConnection

Base = declarative_base()



def get_characterset_info(self):
    return self.get_charset()

MySQLConnection.get_characterset_info = MySQLConnection.get_charset


mysqlengine = create_engine('mysql+mysqlconnector://......../mp2', echo=True)
MYSQLSession = sessionmaker(bind=mysqlengine)     
mysqlsession= MYSQLSession()                      


MP2engine = create_engine('mssql+pyodbc://......../mp2', echo=True)
MP2Session = sessionmaker(bind=MP2engine)     
mp2session= MP2Session()                      


class MYSQLWo(Base):
    __tablename__= 'wo'

    wonum = Column(String, primary_key=True)
    taskdesc = Column(String)    


    comments = relationship("MYSQLWocom", order_by="MYSQLWocom.wonum", backref='wo')



class MYSQLWocom (Base):
    __tablename__='wocom'

    wonum = Column(String, ForeignKey('wo.wonum'), primary_key=True)
    comments = Column(String, primary_key=True)





class MP2Wo(Base):
    __tablename__= 'wo'

    wonum = Column(String, primary_key=True)
    taskdesc = Column(String)    


    comments = relationship("MP2Wocom", order_by="MP2Wocom.wonum", backref='wo')


class MP2Wocom (Base):
    __tablename__='woc'

    wonum = Column(String, ForeignKey('wo.wonum'), primary_key=True)
    location = Column(String)
    sublocat