AttributeError: 'NoneType' object has no attribute 'label'

[fhirschberg@…]

How to Reproduce

While doing a GET operation on /timeline, Trac issued an internal error.

I changed the name of the build configuration and the label to "DailyBuild". Since then the timeline was broken. The Timeline is not usable anymore… How can i fix the timeline view to get the site working again?

Request parameters:

{'daysback': u'30', 'from': u'2009-10-19'}

User Agent was: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.0.14) Gecko/2009090217 Ubuntu/9.04 (jaunty) Firefox/3.0.14

System Information

Trac	0.11.5
Python	2.5.2 (r252:60911, Jul 22 2009, 15:52:25) [GCC 4.2.4 (Ubuntu 4.2.4-1ubuntu3)]
setuptools	0.6c9
SQLite	3.4.2
pysqlite	2.3.2
Genshi	0.5.1
mod_python	3.3.1
Pygments	0.9
Bitten	0.6b2
Subversion	1.5.1 (r32289)
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/web/main.py", line 444, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/web/main.py", line 226, in dispatch
    data, content_type)
  File "/usr/lib/python2.5/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 "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-0.11.5-py2.5.egg/trac/web/chrome.py", line 830, in _strip_accesskeys
    for kind, data, pos 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-0.11.5-py2.5.egg/trac/web/chrome.py", line 819, 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-0.11.5-py2.5.egg/trac/timeline/templates/timeline.html", line 41, in <Expression u"event.render('title', context)">
    <span class="time">${format_time(event.date, str('%H:%M'))}</span> ${event.render('title', context)}
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/timeline/web_ui.py", line 294, in <lambda>
    provider.render_timeline_event(context, field, event)
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/attachment.py", line 476, in render_timeline_event
    name = get_resource_name(self.env, attachment.parent)
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/resource.py", line 338, in get_resource_name
    return get_resource_description(env, resource)
  File "/usr/lib/python2.5/site-packages/Trac-0.11.5-py2.5.egg/trac/resource.py", line 335, in get_resource_description
    return manager.get_resource_description(resource, format, **kwargs)
  File "/usr/lib/python2.5/site-packages/Bitten-0.6b2-py2.5.egg/bitten/main.py", line 130, in get_resource_description
    config_label = config.label or config_name
AttributeError: 'NoneType' object has no attribute 'label'

[Remy Blank]

This is an issue with Bitten, please report it on the Bitten Trac at ​http://bitten.edgewall.org/.

[osimons]

No need to report it again - I spotted this ticket and have fixed it already in ​bitten:changeset:782. Update to latest from Bitten 0.6.x branch to get your Trac timeline working again.

[anonymous]

Thanks for helping so fast! I'll try it with the fixed version today.

[anonymous]

Works like a charm!

But one short question… Line 130 in main.py was changed to this:

config_label = config and config.label and config.label or config_name

Isn't the second "and config.label" futile? Or do i miss something?

Thanks for the patch.