[Zope] 2.6.0 Manage WebDAV locks: 'has_key() takes exactly 1 argument (2 given)'??

[Thomas Blatter]

Hi,

    when i try to open the WebDAV lock Manager in ZMI i get the 'has_key() 
takes exactly 1 argument (2 given)' error.

    Traceback is:

Traceback (innermost last):
   Module ZPublisher.Publish, line 98, in publish
   Module ZPublisher.mapply, line 88, in mapply
   Module ZPublisher.Publish, line 39, in call_object
   Module Shared.DC.Scripts.Bindings, line 252, in __call__
   Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec
   Module App.special_dtml, line 174, in _exec
   Module DocumentTemplate.DT_Let, line 75, in render
   Module DocumentTemplate.DT_Util, line 201, in eval
    - __traceback_info__: REQUEST
   Module <string>, line 0, in ?
TypeError: has_key() takes exactly 1 argument (2 given)

Versions:
  Zope: (Zope 2.6.0 (binary release, python 2.1, linux2-x86), python 2.1.3, 
linux2)
  Python: 2.1.3 (#1, Sep 19 2002, 13:15:46) [GCC egcs-2.91.66 
19990314/Linux (egcs-1.1.2 release)]

  Any ideas?

  Kind regards

   Thomas Blatter