Re: Optional C extensions
Tim Hoffman <[email protected]>
| Newsgroups | gmane.comp.web.zope.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi Jim Yeah I agree with you. I haven't ever distributed that version of zope.proxy , just used it internally to support deferredimport. zope.security could never to what it does with a pure python version of zope.proxy. the 'c' wrappers are very important to ensure security. Unfortunately I needed deferredimport and was completely unsure how else to proceed at the time. I use code generation for gae based models, and the unfortunately reference entities need actual models/classes which means you can very easily create cyclic dependancies. Storm allows references to be defined "strings" such as "model.MyClass" but gae doesn't implement such a thing, so deferredimport was the next best thing. T On Wed, Mar 10, 2010 at 8:05 PM, Jim Fulton <[email protected]> wrote: > On Tue, Mar 9, 2010 at 6:15 PM, Tim Hoffman <[email protected]> wrote: >> Hi >> >> As Attila pointed out, zope.proxy is possible to implement using >> peak.util.proxies >> if you only want some limited zope.proxy support. You won't get >> zope.security going down >> this path. >> >> I do that specifically so that I can use zope.deferredimport on app engine. >> >> Below is the awful hacking I do to zope.proxy.__init__ to make it >> support zope.deferredimport on appengine. > > Please don't encourage this. > > People reading this, please forget you read Tim's email. :) > (Jim whips out special pen and asks that everyone look in his > direction for a moement.) > > zope.deferred import should, perhaps, be modified to use > peak.util.proxies, but we should not have packages floating around > that modify zope.proxy to weaken it. > > I wish I had agitated to make changes to Python to make deferred > imports use of zope.proxy unnecessary. > > Jim > > -- > Jim Fulton > _______________________________________________ Zope-Dev maillist - [email protected] https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )