[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
Hello Michael, Thanks for your input! I got the latest trunk from SVN. However, if my app specific baseclass is an old style class, it still breaks., this time in orm\attributes.py Traceback (most recent call last): File SqlDB_Test.py, line 9, in ? dbo = SqlDB(SqlDB_Test.Sqlite,c:\\testdbs) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 77, in __init_ _ self.initSetup(echo) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 115, in initSe tup elixir.setup_all(True) File d:\recogsys\src\python\rsiterm\__init__.py, line 145, in setup_all File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 816, in setup_entities File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 409, in setup_mapper File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\__init__.py, line 643, in mapper return Mapper(class_, local_table, *args, **params) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 197, in __init__ self.__compile_class() File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 852, in __compile_class manager = attributes.create_manager_for_cls(self.class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1494, in create_manager_for_cls manager = factory(class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1047, in __init__ cls_state = manager_of_class(base) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1511, in manager_of_class finder = self.manager_finders[cls] File C:\Python24\lib\weakref.py, line 219, in __getitem__ return self.data[ref(key)] TypeError: cannot create weak reference to 'classobj' object This error goes away when I make my app baseclass as a new style class. It is not giving any problems with Exceptions class in Py2.4 though. Could this be a possible issue? On Wed, Aug 20, 2008 at 9:28 PM, Michael Bayer [EMAIL PROTECTED]wrote: On Aug 20, 2008, at 11:52 AM, Harish K Vishwanath wrote: Hello, Sorry if I am being stupid. I saw the ticket and r0535 and 537 changeset. Which version of SQLA incorporates these changesets? no worries...use the latest trunk, which will ultimately be released either as 0.5beta4 or 0.5.0. -- Regards, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
Thanks for the traceback. Give r5050 a try. Cheers, Jason Harish K Vishwanath wrote: Hello Michael, Thanks for your input! I got the latest trunk from SVN. However, if my app specific baseclass is an old style class, it still breaks., this time in orm\attributes.py Traceback (most recent call last): File SqlDB_Test.py, line 9, in ? dbo = SqlDB(SqlDB_Test.Sqlite,c:\\testdbs) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 77, in __init_ _ self.initSetup(echo) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 115, in initSe tup elixir.setup_all(True) File d:\recogsys\src\python\rsiterm\__init__.py, line 145, in setup_all File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 816, in setup_entities File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 409, in setup_mapper File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\__init__.py, line 643, in mapper return Mapper(class_, local_table, *args, **params) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 197, in __init__ self.__compile_class() File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 852, in __compile_class manager = attributes.create_manager_for_cls(self.class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1494, in create_manager_for_cls manager = factory(class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1047, in __init__ cls_state = manager_of_class(base) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1511, in manager_of_class finder = self.manager_finders[cls] File C:\Python24\lib\weakref.py, line 219, in __getitem__ return self.data[ref(key)] TypeError: cannot create weak reference to 'classobj' object This error goes away when I make my app baseclass as a new style class. It is not giving any problems with Exceptions class in Py2.4 though. Could this be a possible issue? On Wed, Aug 20, 2008 at 9:28 PM, Michael Bayer [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: On Aug 20, 2008, at 11:52 AM, Harish K Vishwanath wrote: Hello, Sorry if I am being stupid. I saw the ticket and r0535 and 537 changeset. Which version of SQLA incorporates these changesets? no worries...use the latest trunk, which will ultimately be released either as 0.5beta4 or 0.5.0. http://0.5.0. -- Regards, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
Thanks Jason. Downloaded R5051, it works fine! Cheers, Harish On Thu, Aug 21, 2008 at 7:58 PM, jason kirtland [EMAIL PROTECTED] wrote: Thanks for the traceback. Give r5050 a try. Cheers, Jason Harish K Vishwanath wrote: Hello Michael, Thanks for your input! I got the latest trunk from SVN. However, if my app specific baseclass is an old style class, it still breaks., this time in orm\attributes.py Traceback (most recent call last): File SqlDB_Test.py, line 9, in ? dbo = SqlDB(SqlDB_Test.Sqlite,c:\\testdbs) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 77, in __init_ _ self.initSetup(echo) File d:\recogsys\src\python\RSITerm\SQLConvert\SqlDB.py, line 115, in initSe tup elixir.setup_all(True) File d:\recogsys\src\python\rsiterm\__init__.py, line 145, in setup_all File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 816, in setup_entities File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 409, in setup_mapper File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\__init__.py, line 643, in mapper return Mapper(class_, local_table, *args, **params) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 197, in __init__ self.__compile_class() File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\mapper.py, line 852, in __compile_class manager = attributes.create_manager_for_cls(self.class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1494, in create_manager_for_cls manager = factory(class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1047, in __init__ cls_state = manager_of_class(base) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta4dev_r5048-py2.4.egg\s qlalchemy\orm\attributes.py, line 1511, in manager_of_class finder = self.manager_finders[cls] File C:\Python24\lib\weakref.py, line 219, in __getitem__ return self.data[ref(key)] TypeError: cannot create weak reference to 'classobj' object This error goes away when I make my app baseclass as a new style class. It is not giving any problems with Exceptions class in Py2.4 though. Could this be a possible issue? On Wed, Aug 20, 2008 at 9:28 PM, Michael Bayer [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: On Aug 20, 2008, at 11:52 AM, Harish K Vishwanath wrote: Hello, Sorry if I am being stupid. I saw the ticket and r0535 and 537 changeset. Which version of SQLA incorporates these changesets? no worries...use the latest trunk, which will ultimately be released either as 0.5beta4 or 0.5.0. http://0.5.0. -- Regards, Harish -- Regards, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
seems your baseclass is oldstyle class, not inheriting 'object'. python 2.5 newstyle classes (off object) has that __subclasses__() classmethod (see dir(type)), not sure if 2.4 has that at all. i've no idea where these are explained (as well as mro() and other type' stuff.) i looked a bit at the src and i have a may be related question: why, once a instrumentation (descriptor) is installed on some class X attribute xyz, the same descriptor has to be installed on all subclasses of it? getattr( some_subclass_of_X, 'xyz') would return it anyway? if it is to allow diff subclasses to have diff. instrumentation, why it has to be triggered by the base class and not by mapper? and if that is because the subclass may have no mapper... what it has to do with SA then? On Wednesday 20 August 2008 12:39:15 Harish K Vishwanath wrote: Hello, I was using elixir 0.5.2 (SQL Alchemy 0.4.6) on Py 2.4. All my model objects inherits from Entity as well as another baseobject specific to our application. class User(elixir.Entity, application.baseobject): ... ... It used to work fine. Today I upgraded to SQLA 0.5 beta3 and elixir 0.6.1. The same code doesn't work anymore. File c:\Python24\lib\site- packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 816, in setup_entities File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity .py, line 409, in setup_mapper File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\__init__.py, line 623, in mapper return Mapper(class_, local_table, *args, **params) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\mapper.py, line 196, in __init__ self.__compile_class() File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\mapper.py, line 844, in __compile_class manager = attributes.create_manager_for_cls(self.class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\attributes.py, line 1498, in create_manager_for_cls existing_factories = collect_management_factories_for(class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\attributes.py, line 1604, in collect_management_factories_for hierarchy = util.class_hierarchy(cls) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \util.py, line 408, in class_hierarchy for s in [_ for _ in c.__subclasses__() if _ not in hier]: AttributeError: class IRObject has no attribute '__subclasses__' IRObject is our app specific base class. Any ideas? Thanks, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
Hello, I changed my baseclass to Inherit from object and made it as a new class. Now it dies in trying to find hierarchy for built-in class exception.Exception. AttributeError: class Exception has no attribute '__subclasses__' In Py 2.5, Exceptions have been changed to new style classes, but it doesn't seem to be so in py 2.4. Is there a way to bypass this assumption of SA? Thanks, Harish On Wed, Aug 20, 2008 at 4:02 PM, [EMAIL PROTECTED] wrote: seems your baseclass is oldstyle class, not inheriting 'object'. python 2.5 newstyle classes (off object) has that __subclasses__() classmethod (see dir(type)), not sure if 2.4 has that at all. i've no idea where these are explained (as well as mro() and other type' stuff.) i looked a bit at the src and i have a may be related question: why, once a instrumentation (descriptor) is installed on some class X attribute xyz, the same descriptor has to be installed on all subclasses of it? getattr( some_subclass_of_X, 'xyz') would return it anyway? if it is to allow diff subclasses to have diff. instrumentation, why it has to be triggered by the base class and not by mapper? and if that is because the subclass may have no mapper... what it has to do with SA then? On Wednesday 20 August 2008 12:39:15 Harish K Vishwanath wrote: Hello, I was using elixir 0.5.2 (SQL Alchemy 0.4.6) on Py 2.4. All my model objects inherits from Entity as well as another baseobject specific to our application. class User(elixir.Entity, application.baseobject): ... ... It used to work fine. Today I upgraded to SQLA 0.5 beta3 and elixir 0.6.1. The same code doesn't work anymore. File c:\Python24\lib\site- packages\elixir-0.6.1-py2.4.egg\elixir\entity.py, line 816, in setup_entities File c:\Python24\lib\site-packages\elixir-0.6.1-py2.4.egg\elixir\entity .py, line 409, in setup_mapper File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\__init__.py, line 623, in mapper return Mapper(class_, local_table, *args, **params) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\mapper.py, line 196, in __init__ self.__compile_class() File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\mapper.py, line 844, in __compile_class manager = attributes.create_manager_for_cls(self.class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\attributes.py, line 1498, in create_manager_for_cls existing_factories = collect_management_factories_for(class_) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \orm\attributes.py, line 1604, in collect_management_factories_for hierarchy = util.class_hierarchy(cls) File c:\python24\lib\site-packages\SQLAlchemy-0.5.0beta3-py2.4.egg\sqla lchemy \util.py, line 408, in class_hierarchy for s in [_ for _ in c.__subclasses__() if _ not in hier]: AttributeError: class IRObject has no attribute '__subclasses__' IRObject is our app specific base class. Any ideas? Thanks, Harish -- Regards, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
On Aug 20, 2008, at 5:39 AM, Harish K Vishwanath wrote: Hello, I was using elixir 0.5.2 (SQL Alchemy 0.4.6) on Py 2.4. All my model objects inherits from Entity as well as another baseobject specific to our application. class User(elixir.Entity, application.baseobject): ... ... It used to work fine. Today I upgraded to SQLA 0.5 beta3 and elixir 0.6.1. The same code doesn't work anymore. when using SQLA betas, keep your eye on the SVN timeline. This issue is ticket 1078 and has been fixed in r5037. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
On Aug 20, 2008, at 6:32 AM, [EMAIL PROTECTED] wrote: seems your baseclass is oldstyle class, not inheriting 'object'. python 2.5 newstyle classes (off object) has that __subclasses__() classmethod (see dir(type)), not sure if 2.4 has that at all. i've no idea where these are explained (as well as mro() and other type' stuff.) i looked a bit at the src and i have a may be related question: why, once a instrumentation (descriptor) is installed on some class X attribute xyz, the same descriptor has to be installed on all subclasses of it? getattr( some_subclass_of_X, 'xyz') would return it anyway? if you look closely you'll see that the InstrumentedAttribute has state which is specific to the actual mapper in use. Try commenting it out and see which tests break (theres a few for that specifically). if it is to allow diff subclasses to have diff. instrumentation, why it has to be triggered by the base class and not by mapper? and if that is because the subclass may have no mapper... what it has to do with SA then? mostly with construction of expressions, like Cls.foobar == 5 types of things. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
Hello, Sorry if I am being stupid. I saw the ticket and r0535 and 537 changeset. Which version of SQLA incorporates these changesets? On Wed, Aug 20, 2008 at 7:15 PM, Michael Bayer [EMAIL PROTECTED]wrote: On Aug 20, 2008, at 5:39 AM, Harish K Vishwanath wrote: Hello, I was using elixir 0.5.2 (SQL Alchemy 0.4.6) on Py 2.4. All my model objects inherits from Entity as well as another baseobject specific to our application. class User(elixir.Entity, application.baseobject): ... ... It used to work fine. Today I upgraded to SQLA 0.5 beta3 and elixir 0.6.1. The same code doesn't work anymore. when using SQLA betas, keep your eye on the SVN timeline. This issue is ticket 1078 and has been fixed in r5037. -- Regards, Harish --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: Code working on SQLA 0.4.6 is breaking on SQLA 0.5beta3
On Aug 20, 2008, at 11:52 AM, Harish K Vishwanath wrote: Hello, Sorry if I am being stupid. I saw the ticket and r0535 and 537 changeset. Which version of SQLA incorporates these changesets? no worries...use the latest trunk, which will ultimately be released either as 0.5beta4 or 0.5.0. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
