[Zope3-dev] 'thread_local' AttributeError in zope.security.checker
jim at zope.com
Wed Aug 15 09:47:04 EDT 2007
On Aug 14, 2007, at 7:32 PM, Paul Carduner wrote:
> Hello zope3-dev,
> I came across an error I have not seen before. Just for reference,
> here is the last snippet from the traceback:
> File "/home/pcardune/Work/ZContact/zcontact-lp/eggs/tmpgwuq6O/
> line 420, in ?
> AttributeError: 'module' object has no attribute 'thread_local'
I wish you had included the whole traceback.
> The interesting part to me is that it was so easy to fix. Here is a
> snippet of the relevant area of failing code from
> # Get optimized versions
> import zope.security._zope_security_checker
> except ImportError:
> from zope.security._zope_security_checker import _checkers,
> from zope.security._zope_security_checker import NoProxy, Checker
> from zope.security._zope_security_checker import _defaultChecker
> from zope.security._zope_security_checker import
> zope.interface.classImplements(Checker, INameBasedChecker)
> The very first import statement is throwing the error, but alas, it is
> not an ImportError. If I patch this code by catching the
> AttributeError in the same way the ImportError is caught, then
> everything works fine.
Except you don't get the C optimizations. IOW, you would just be
covering up a real error.
> I tried looking into the c code, but after
> years of python development, the c code just frightens me (a bit).
> That said, I would really appreciate any pointers people might be able
> to give me on what thread_local is for and why I (don't) need it.
I rearranged the imports in zope.security yesterday. I apparently
broke your usage, but I can't tell what your usage is. I'll need to
see the whole traceback. In particular, I'll need to see the import
Jim Fulton mailto:jim at zope.com Python Powered!
CTO (540) 361-1714 http://www.python.org
Zope Corporation http://www.zope.com http://www.zope.org
More information about the Zope3-dev