busroutes.py

from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column, Integer, String

Base = declarative_base()

class BusRoute(Base):
    __tablename__ = 'busroutes'
    bus_no = Column(Integer, primary_key=True)
    start_point = Column(String(100))
    end_point = Column(String(100))
    route = Column(String(200))

    def __businfo__(self):
        return "<BusClass(start_point='%s', end_point='%s', route='%s')>" % (
                             self.start_point, self.end_point, self.route)

I dont see any problem with this.

>>> from sqlalchemy.ext.declarative import declarative_base
>>> from sqlalchemy import Column, Integer, String
>>>  
>>> Base = declarative_base()
>>>  
>>> class BusRoute(Base):
...     __tablename__ = 'busroutes'
...     bus_no = Column(Integer, primary_key=True)
...     start_point = Column(String(100))
...     end_point = Column(String(100))
...     route = Column(String(200))
...  
...     def __businfo__(self):
...         return "<BusClass(start_point='%s', end_point='%s', route='%s')>" % (
...                              self.start_point, self.end_point, self.route)
... 
>>> 
>>> 
>>> businfo=BusRoute(start_point='m',end_point='u',route='lalbagh')
>>> businfo
<BusRoute object at 0xa91baac>
>>> businfo.__businfo__()
"<BusClass(start_point='m', end_point='u', route='lalbagh')>"
>>>