[Zope-dev] property type
According to docs and testing (in the interpreter) I can make a read-only calculated attribute using property() (I know that setters do not work w/ non-new-style classes). So I tried the following: class CMixin: def getter(self): return 'test' prop = property(getter) and when I try to mix in this object w/ a Folder object, the instance returns property object at 0x8b45edc for the 'prop' attribute. Is this an issue with pickling or something else? Cheers, Tim -- Tim McLaughlin Chief Technology Officer Siteworx, Inc... Set your site on the future! 703.390.5421 msg12579/pgp0.pgp Description: PGP signature
Re: [Zope-dev] property type
Tim McLaughlin wrote: According to docs and testing (in the interpreter) I can make a read-only calculated attribute using property() (I know that setters do not work w/ non-new-style classes). So I tried the following: class CMixin: def getter(self): return 'test' prop = property(getter) and when I try to mix in this object w/ a Folder object, the instance returns property object at 0x8b45edc for the 'prop' attribute. Is this an issue with pickling or something else? In Zope 2, the ExtensionClass that is the C base class used for Persistent classes, doesn't work with python 2.2 properties. -- Steve Alexander ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] property type
Steve Alexander wrote: Tim McLaughlin wrote: According to docs and testing (in the interpreter) I can make a read-only calculated attribute using property() (I know that setters do not work w/ non-new-style classes). So I tried the following: class CMixin: def getter(self): return 'test' prop = property(getter) and when I try to mix in this object w/ a Folder object, the instance returns property object at 0x8b45edc for the 'prop' attribute. Is this an issue with pickling or something else? In Zope 2, the ExtensionClass that is the C base class used for Persistent classes, doesn't work with python 2.2 properties. But, you can use a ComputedAttribute to get much the same effect. -- Steve Alexander ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
