Is this legal? The field "title" is exposed in one polymorphic subclass as the attribute "file_name" and in another as "name".
<code> class _Doc(Base): """ An OpenGroupare Document object """ __tablename__ = 'doc' object_id = Column("document_id", Integer, Sequence('key_generator'), primary_key=True) .... _is_folder = Column("is_folder", Integer) __mapper_args__ = {'polymorphic_on': _is_folder} class Document(_Doc): __entityName__ = 'File' __mapper_args__ = {'polymorphic_identity': 0} file_name = Column("title", String(255)) class Folder(_Doc): __entityName__ = 'Folder' __mapper_args__ = {'polymorphic_identity': 1} name = Column("title", String(255)) </code> When I run this as "python app.py" it works. However if I install the Egg and run app.py it fails with the error - <error> Traceback (most recent call last): File "/usr/bin/coils-master-service", line 5, in <module> pkg_resources.run_script('OpenGroupware==0.1.16', 'coils-master-service') File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 448, in run_script self.require(requires)[0].run_script(script_name, ns) File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 1173, in run_script exec script_code in namespace, namespace File "/usr/lib/python2.6/site-packages/OpenGroupware-0.1.16-py2.6.egg/EGG-INFO/scripts/coils-master-service", line 23, in <module> File "build/bdist.linux-x86_64/egg/coils/foundation/__init__.py", line 24, in <module> File "build/bdist.linux-x86_64/egg/coils/foundation/alchemy/__init__.py", line 28, in <module> File "build/bdist.linux-x86_64/egg/coils/foundation/alchemy/doc.py", line 206, in <module> File "/usr/lib/python2.6/site-packages/SQLAlchemy-0.6.1-py2.6.egg/sqlalchemy/ext/declarative.py", line 830, in __init__ _as_declarative(cls, classname, cls.__dict__) File "/usr/lib/python2.6/site-packages/SQLAlchemy-0.6.1-py2.6.egg/sqlalchemy/ext/declarative.py", line 806, in _as_declarative (c, cls, inherited_table.c[c.name]) sqlalchemy.exc.ArgumentError: Column 'title' on class <class 'coils.foundation.alchemy.doc.Folder'> conflicts with existing column 'doc.title' </error> -- Adam Tauno Williams <awill...@whitemice.org> LPIC-1, Novell CLA <http://www.whitemiceconsulting.com> OpenGroupware, Cyrus IMAPd, Postfix, OpenLDAP, Samba -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.