[Zope] getPhysicalRoot and <Special Object Used to Force Acquisition>

[Dieter Maurer]

Gabriel Genellina writes:
 > Inside a Python product, I tried to access another object this way:
 > 
 >          self.restrictedTraverse('/Folder/Object')
 > 
 > This worked fine until this evening, when I got an error 'Object not callable'
 > The error was on Traversable.py, function unrestrictedTraverse, line 166 
 > (Zope 2.4.3 (binary release, python 2.1, win32-x86), python 2.1.0, win32)
 > 
 >              self=self.getPhysicalRoot()
 > 
 > When I printed type(self.getPhysicalRoot), I got: <Special Object Used to 
 > Force Acquisition>' (what's that???)
That tells the acquisition machinery to use acquisition to
get at the object, even if this is an explicit acquisition wrapper.
See documentation in "lib/Components/ExtensionClass/doc/acquistion.html"
for details.

Is it possible that your object ("self") was not acquisition wrapped
(i.e. used inside "__init__", "__setstate__" or "__getattr__")?


Dieter