[Zope-dev] External Method Missery

[Chris Withers]

I think this is a bgu so I'll chuck it into the collector unless someone
tells me otherwise...

I have an external method called navTree (dtml-tree was too broken to
fix in the time frame :( ) with a spec as follows:

def navTree(self,start):

It's called in some DTML as:

<dtml-var "nav_tree(PARENTS[-2])">

which is fine, unless I call it with the following:

<dtml-var "nav_tree(start=PARENTS[-2])">

in which case I get:
TypeError: not enough arguments; expected 2, got 0

which is not very helpful :(

Any ideas?

cheers,

Chris

PS:
Traceback (innermost last):
  File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/Publish.py,
line 214, in publish_module
  File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/Publish.py,
line 179, in publish
  File /mnt/data/2/zope/external/2-1-6/lib/python/Zope/__init__.py, line
202, in zpublisher_exception_hook
    (Object: ElementWithAttributes)
  File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/Publish.py,
line 165, in publish
  File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/mapply.py,
line 160, in mapply
    (Object: index_html)
  File /mnt/data/2/zope/external/2-1-6/lib/python/ZPublisher/Publish.py,
line 102, in call_object
    (Object: index_html)
  File /mnt/data/2/zope/external/2-1-6/lib/python/OFS/DTMLMethod.py,
line 150, in __call__
    (Object: index_html)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_String.py,
line 502, in __call__
    (Object: index_html)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_Util.py,
line 335, in eval
    (Object: _[REQUEST['lang']])
    (Info: REQUEST)
  File &lt;string&gt;, line 0, in ?
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_Util.py,
line 161, in careful_getitem
  File /mnt/data/2/zope/external/2-1-6/lib/python/OFS/DTMLDocument.py,
line 162, in __call__
    (Object: en)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_String.py,
line 502, in __call__
    (Object: en)
  File /mnt/data/2/zope/external/2-1-6/lib/python/OFS/DTMLMethod.py,
line 146, in __call__
    (Object: standard_html_header)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_String.py,
line 502, in __call__
    (Object: standard_html_header)
  File /mnt/data/2/zope/external/2-1-6/lib/python/OFS/DTMLMethod.py,
line 146, in __call__
    (Object: left_menu)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_String.py,
line 502, in __call__
    (Object: left_menu)
  File
/mnt/data/2/zope/external/2-1-6/lib/python/DocumentTemplate/DT_Util.py,
line 335, in eval
    (Object: nav_tree(start=PARENTS[-2]))
    (Info: PARENTS)
  File &lt;string&gt;, line 0, in ?
  File
/mnt/data/2/zope/external/2-1-6/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 248, in __call__
    (Object: nav_tree)
    (Info: ((), {'start': &lt;Folder instance at 86d4de0&gt;}, None))