I get this traceback after upgrading an existing data.fs, logging in as a teacher (hoffman:passwd) and clicking on gradebook.
ValueError:
Traceback
File "/usr/lib/python2.5/site-packages/zope/publisher/publish.py", line 133, in publish
result = publication.callObject(request, obj)
File "/usr/lib/python2.5/site-packages/zope/app/publication/zopepublication.py", line 167, in callObject
return mapply(ob, request.getPositionalArguments(), request)
File "/usr/lib/python2.5/site-packages/zope/publisher/publish.py", line 108, in mapply
return debug_call(obj, args)
Extra information: <zope.app.pagetemplate.simpleviewclass.SimpleViewClass from /usr/lib/python2.5/site-packages/schooltool/gradebook/browser/gradebook_overview.pt object at 0xd5c5e2c>
File "/usr/lib/python2.5/site-packages/zope/publisher/publish.py", line 114, in debug_call
return obj(*args)
File "/usr/lib/python2.5/site-packages/zope/app/pagetemplate/simpleviewclass.py", line 44, in __call__
return self.index(*args, **kw)
File "/usr/lib/python2.5/site-packages/zope/app/pagetemplate/viewpagetemplatefile.py", line 83, in __call__
return self.im_func(im_self, *args, **kw)
File "/usr/lib/python2.5/site-packages/zope/app/pagetemplate/viewpagetemplatefile.py", line 51, in __call__
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/usr/lib/python2.5/site-packages/zope/pagetemplate/pagetemplate.py", line 115, in pt_render
strictinsert=0, sourceAnnotations=sourceAnnotations)()
Template "/usr/lib/python2.5/site-packages/schooltool/gradebook/browser/gradebook_overview.pt"
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 271, in __call__
self.interpret(self.program)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 891, in do_useMacro
self.interpret(macro)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 536, in do_optTag_tal
self.do_optTag(stuff)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 521, in do_optTag
return self.no_tag(start, program)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 516, in no_tag
self.interpret(program)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 957, in do_defineSlot
self.interpret(block)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 536, in do_optTag_tal
self.do_optTag(stuff)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 521, in do_optTag
return self.no_tag(start, program)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 516, in no_tag
self.interpret(program)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 949, in do_defineSlot
self.interpret(slot)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 346, in interpret
handlers[opcode](self, args)
File "/usr/lib/python2.5/site-packages/zope/tal/talinterpreter.py", line 822, in do_loop_tal
iterator = self.engine.setRepeat(name, expr)
File "/usr/lib/python2.5/site-packages/zope/tales/tales.py", line 682, in setRepeat
expr = self.evaluate(expr)
File "/usr/lib/python2.5/site-packages/zope/tales/tales.py", line 696, in evaluate
return expression(self)
Template "/usr/lib/python2.5/site-packages/schooltool/gradebook/browser/gradebook_overview.pt", line 178, column 4
Expression: <PathExpr standard:u'view/table'>
File "/usr/lib/python2.5/site-packages/zope/tales/expressions.py", line 217, in __call__
return self._eval(econtext)
File "/usr/lib/python2.5/site-packages/zope/tales/expressions.py", line 211, in _eval
return ob()
File "/usr/lib/python2.5/site-packages/schooltool/gradebook/browser/gradebook.py", line 548, in table
average = convertAverage(average, self.average_scoresystem)
File "/usr/lib/python2.5/site-packages/schooltool/gradebook/browser/gradebook.py", line 98, in convertAverage
raise ValueError
