SQLAlchemy: avoiding repetition in declarative style class definition

Question

I\'m using SQLAlchemy, and many classes in my object model have the same two attributes: id and (integer & primary key), and name (a string). I\'m trying to avoid declaring

Answer 1

Could you also use the Column's copy method? This way, fields can be defined independently of tables, and those fields that are reused are just field.copy()-ed.

id = Column(Integer, primary_key = True)
name = Column(String)

class C1(declarative_base()):
    id = id.copy()
    name = name.copy()
    #...

class C2(declarative_base()):
    id = id.copy()
    name = name.copy()
    #...