Re: [Zope] Persistence.py does not define Persistent
Skip Montanaro writes: > > I'm trying to publish my own module with ZServer (from Zope 2.2.0). I get > the following traceback: > > > from Persistence import Persistent > ImportError: cannot import name Persistent > > When I look at lib/python/Persistence.py, all I see is a copyright notice > and the following short doc string: > > """Provide access to Persistent and PersistentMapping > > This avoids dependency on the database package name. > """ > > I can't find a definition of an object named Persistent (probably ought to > be a class or ExtensionClass, based upon the usage I saw) anywhere in the > Zope 2.2.0 tree. "Persistence" is only a "placeholder" module that gets filled by the really used Object Database package (ZODB, BoboPOS2, BoboPOS3, ...) that implements persistence. For the current Zope, "ZODB/__init__.py" fills this module with "cPersistence.Persistent" and "PersistentMapping". By the way, Andrew Kuchling works on separate packages for various Zope parts. I think, ZODB is one of this packages. There was an announcement in zope-dev. Dieter ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Persistence.py does not define Persistent
On Mon, 14 Aug 2000, Skip Montanaro wrote: > I'm trying to publish my own module with ZServer (from Zope 2.2.0). I get > the following traceback: > > from Persistence import Persistent > ImportError: cannot import name Persistent > > When I look at lib/python/Persistence.py, all I see is a copyright notice > and the following short doc string: > > """Provide access to Persistent and PersistentMapping > > This avoids dependency on the database package name. > """ > > I can't find a definition of an object named Persistent (probably ought to > be a class or ExtensionClass, based upon the usage I saw) anywhere in the > Zope 2.2.0 tree. The comment implies it should work. There's a cPersistent in the ZODB directory, which I think is the ExtensionClass you are looking for. from ZODB.cPersistence import Persistent seems to do something...but PersistentMapping.py in the ZODB directory just does an 'import Persistence', so I don't see why that doesn't work when I try it from the python command line. --RDM ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] Persistence.py does not define Persistent
I'm trying to publish my own module with ZServer (from Zope 2.2.0). I get the following traceback: Traceback (most recent call last): File "z2.py", line 673, in ? from AccessControl.User import super File "/home/beluga/skip/src/Zope-2.2.0-src/lib/python/AccessControl/User.py", line 89, in ? import Globals, socket, regex, SpecialUsers File "/home/beluga/skip/src/Zope-2.2.0-src/lib/python/Globals.py", line 90, in ? import Acquisition, ComputedAttribute, App.PersistentExtra, os File "/home/beluga/skip/src/Zope-2.2.0-src/lib/python/App/PersistentExtra.py", line 87, in ? from Persistence import Persistent ImportError: cannot import name Persistent When I look at lib/python/Persistence.py, all I see is a copyright notice and the following short doc string: """Provide access to Persistent and PersistentMapping This avoids dependency on the database package name. """ I can't find a definition of an object named Persistent (probably ought to be a class or ExtensionClass, based upon the usage I saw) anywhere in the Zope 2.2.0 tree. Suggestions? -- Skip Montanaro ([EMAIL PROTECTED]) http://www.mojam.com/ http://www.musi-cal.com/ ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
