Type Error

[reiter@…]

I get these strange errors, and I have no idea how to fix them.

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/Trac-0.11.4-py2.5.egg/trac/web/api.py", line 367, in send_error
    'text/html')
  File "/usr/lib/python2.5/site-packages/Trac-0.11.4-py2.5.egg/trac/web/chrome.py", line 742, in render_template
    stream.render(method, doctype=doctype, out=buffer)
  File "build/bdist.linux-i686/egg/genshi/core.py", line 179, in render
    return encode(generator, method=method, encoding=encoding, out=out)
  File "build/bdist.linux-i686/egg/genshi/output.py", line 61, in encode
    for chunk in iterator:
  File "build/bdist.linux-i686/egg/genshi/output.py", line 311, in __call__
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/output.py", line 753, in __call__
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/output.py", line 592, in __call__
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/output.py", line 698, in __call__
    for kind, data, pos in chain(stream, [(None, None, None)]):
  File "build/bdist.linux-i686/egg/genshi/output.py", line 532, in __call__
    for ev in stream:
  File "build/bdist.linux-i686/egg/genshi/core.py", line 283, in _ensure
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/core.py", line 283, in _ensure
    for event in stream:
  File "/usr/lib/python2.5/site-packages/Trac-0.11.4-py2.5.egg/trac/web/chrome.py", line 796, in _generate
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 569, in _include
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/markup.py", line 298, in _match
    ctxt, start=idx + 1, **vars):
  File "build/bdist.linux-i686/egg/genshi/template/markup.py", line 298, in _match
    ctxt, start=idx + 1, **vars):
  File "build/bdist.linux-i686/egg/genshi/template/markup.py", line 245, in _match
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 543, in _exec
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 533, in _eval
    for event in substream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 496, in _eval
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 551, in _flatten
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/core.py", line 283, in _ensure
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/path.py", line 141, in _generate
    subevent = stream.next()
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 569, in _include
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/markup.py", line 234, in _strip
    event = stream.next()
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 543, in _exec
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 533, in _eval
    for event in substream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 496, in _eval
    for kind, data, pos in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 551, in _flatten
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/core.py", line 283, in _ensure
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/path.py", line 141, in _generate
    subevent = stream.next()
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 569, in _include
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/markup.py", line 234, in _strip
    event = stream.next()
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 543, in _exec
    for event in stream:
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 520, in _eval
    result = _eval_expr(data, ctxt, **vars)
  File "build/bdist.linux-i686/egg/genshi/template/base.py", line 286, in _eval_expr
    retval = expr.evaluate(ctxt)
  File "build/bdist.linux-i686/egg/genshi/template/eval.py", line 180, in evaluate
    return eval(self.code, _globals, {'__data__': data})
  File "/usr/lib/python2.5/site-packages/Trac-0.11.4-py2.5.egg/trac/templates/error.html", line 171, in <Expression u'shorten_line(repr(value))'>
    <td><code>${shorten_line(repr(value))}</code></td>
  File "/usr/lib/python2.5/site-packages/Trac-0.11.4-py2.5.egg/trac/resource.py", line 111, in __repr__
    return '<Resource %r>' % (', '.join(reversed(path)))
TypeError: sequence item 0: expected string, NoneType found

I installed Page2Docbook 0.6.3. I also have some other plugins installed, some of them written myself (but they don't seem to be involved here).

[Filipe Correia]

Will keep you posted, but probably will be able to look into this only next month.

[Filipe Correia]

Btw, does this happen with all of your wiki pages or only with some of them?

[anonymous]

There two cases:

1. The above error message appears
2. The page loads and loads and loads and does not finish loading.

[Filipe Correia]

Replying to anonymous:

There two cases:

1. The above error message appears
2. The page loads and loads and loads and does not finish loading.

And does this happens for the same wikipage interchangeably, at different times?

[reiter@…]

Yes. The StartingPage always produces such a timeout problem. Another page always produces the error message.

[Filipe Correia]

Replying to reiter@cl.uni-heidelberg.de:

Yes. The StartingPage always produces such a timeout problem. Another page always produces the error message.

Could you please provide an example of a wiki page that produces the error? I am not being able to reproduce the same error here.

[reiter@…]

I've tracked down the problem to something related to the Webserver or mod_python.

The problem occurs with all trac-environment on the server, but if I use the same environment with tracd, everything works fine. So it's apparently not a defect of the plugin. I'll close the ticket.