TypeError: unsupported operand type(s) for -: 'Undefined' and 'Undefined'

[admin]

How to Reproduce

While doing a GET operation on /sprint/Client Comments for ishipr, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'name': u'Client Comments for ishipr'}

User Agent was: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0 (.NET CLR 3.5.30729) FBSMTWB

System Information

Trac	0.11.5
Python	2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)]
setuptools	0.6c9
SQLite	3.3.4
pysqlite	2.3.2
Genshi	0.5.1
Agilo	1.0.2-pro
Subversion	1.5.6 (r36142)
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "D:\Program Files\Agilo\lib\site-packages\trac-0.11.5-py2.5.egg\trac\web\main.py", line 444, in _dispatch_request
    dispatcher.dispatch(req)
  File "D:\Program Files\Agilo\lib\site-packages\trac-0.11.5-py2.5.egg\trac\web\main.py", line 226, in dispatch
    data, content_type)
  File "D:\Program Files\Agilo\lib\site-packages\trac-0.11.5-py2.5.egg\trac\web\chrome.py", line 765, in render_template
    stream.render(method, doctype=doctype, out=buffer)
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 179, in render
    return encode(generator, method=method, encoding=encoding, out=out)
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 61, in encode
    for chunk in iterator:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 311, in __call__
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 753, in __call__
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 592, in __call__
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 698, in __call__
    for kind, data, pos in chain(stream, [(None, None, None)]):
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\output.py", line 532, in __call__
    for ev in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 283, in _ensure
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 283, in _ensure
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\trac-0.11.5-py2.5.egg\trac\web\chrome.py", line 830, in _strip_accesskeys
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 283, in _ensure
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\trac-0.11.5-py2.5.egg\trac\web\chrome.py", line 819, in _generate
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 569, in _include
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 298, in _match
    ctxt, start=idx + 1, **vars):
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 298, in _match
    ctxt, start=idx + 1, **vars):
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 245, in _match
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 543, in _exec
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 533, in _eval
    for event in substream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 496, in _eval
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 551, in _flatten
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 283, in _ensure
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\path.py", line 141, in _generate
    subevent = stream.next()
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 569, in _include
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 245, in _match
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 234, in _strip
    event = stream.next()
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 543, in _exec
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 533, in _eval
    for event in substream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 496, in _eval
    for kind, data, pos in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 551, in _flatten
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\core.py", line 283, in _ensure
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\path.py", line 141, in _generate
    subevent = stream.next()
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 569, in _include
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\markup.py", line 234, in _strip
    event = stream.next()
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 543, in _exec
    for event in stream:
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 520, in _eval
    result = _eval_expr(data, ctxt, **vars)
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\base.py", line 286, in _eval_expr
    retval = expr.evaluate(ctxt)
  File "D:\Program Files\Agilo\lib\site-packages\genshi-0.5.1-py2.5-win32.egg\genshi\template\eval.py", line 180, in evaluate
    return eval(self.code, _globals, {'__data__': data})
  File "D:\Program Files\Agilo\lib\site-packages\binary_agilo-1.0.2_pro-py2.5.egg\agilo\scrum\sprint\templates\agilo_sprint.html", line 40, in <Expression u'planned_tickets - closed_tickets'>
    ${planned_tickets - closed_tickets} tickets are currently open,
TypeError: unsupported operand type(s) for -: 'Undefined' and 'Undefined'

[Christian Boos]

AgiloForScrum issue.