launchpad developmentThis page is to aid debugging unhelpful error messages.
Contents
ValueError: dictionary update sequence element #0 has length 1; 2 is required
Example:
File "lib/canonical/launchpad/pagetests/branches/xx-code-review-messages.txt", line 33, in xx-code-review-messages.txt
Failed example:
anon_browser.getLink('Reply').click()
Exception raised:
Traceback (most recent call last):
File "/home/abentley/src/trunk/lib/zope/testing/doctest.py", line 1260, in __run
compileflags, 1) in test.globs
File "<doctest xx-code-review-messages.txt[17]>", line 1, in ?
File "/home/abentley/src/mp-schema-db/lib/zope/testbrowser/browser.py", line 379, in click
self.browser.mech_browser.follow_link(self.mech_link)
File "/home/abentley/src/mp-schema-db/lib/mechanize/_mechanize.py", line 510, in follow_link
return self.open(self.click_link(link, **kwds))
File "/home/abentley/src/mp-schema-db/lib/mechanize/_mechanize.py", line 254, in open
return self._mech_open(url, data)
File "/home/abentley/src/mp-schema-db/lib/mechanize/_mechanize.py", line 277, in _mech_open
self._response = UserAgent.open(self, self.request, data)
File "/usr/lib/python2.4/urllib2.py", line 358, in open
response = self._open(req, data)
File "/usr/lib/python2.4/urllib2.py", line 376, in _open
'_open', req)
File "/usr/lib/python2.4/urllib2.py", line 337, in _call_chain
result = func(*args)
File "/home/abentley/src/mp-schema-db/lib/zope/testbrowser/testing.py", line 112, in http_open
return self.do_open(PublisherConnection, req)
File "/usr/lib/python2.4/urllib2.py", line 993, in do_open
h.request(req.get_method(), req.get_selector(), req.data, headers)
File "/home/abentley/src/mp-schema-db/lib/zope/testbrowser/testing.py", line 69, in request
self.response = self.caller(request_string, handle_errors)
File "/home/abentley/src/mp-schema-db/lib/canonical/testing/layers.py", line 1021, in my__call__
response = orig__call__(
File "/home/abentley/src/trunk/lib/zope/app/testing/functional.py", line 588, in __call__
request=request_cls, publication=publication_cls)
File "/home/abentley/src/trunk/lib/zope/app/debug/debug.py", line 86, in _request
request = request(stdin, env)
File "/home/abentley/src/mp-schema-db/lib/canonical/launchpad/webapp/servers.py", line 160, in __call__
request = self.requestfactory(body_instream, environ, response)
File "/home/abentley/src/mp-schema-db/lib/canonical/launchpad/webapp/servers.py", line 442, in __init__
super(LaunchpadBrowserRequest, self).__init__(
File "/home/abentley/src/mp-schema-db/lib/canonical/launchpad/webapp/servers.py", line 395, in __init__
super(BasicLaunchpadRequest, self).__init__(
File "/home/abentley/src/trunk/lib/zope/publisher/browser.py", line 221, in __init__
super(BrowserRequest, self).__init__(body_instream, environ, response)
File "/home/abentley/src/trunk/lib/zope/publisher/http.py", line 317, in __init__
self.__setupCookies()
File "/home/abentley/src/trunk/lib/zope/publisher/http.py", line 421, in __setupCookies
self._parseCookies(cookie_header, self._cookies)
File "/home/abentley/src/trunk/lib/zope/publisher/http.py", line 403, in _parseCookies
c = SimpleCookie(text)
File "/usr/lib/python2.4/Cookie.py", line 568, in __init__
if input: self.load(input)
File "/usr/lib/python2.4/Cookie.py", line 623, in load
self.update(rawdata)
ValueError: dictionary update sequence element #0 has length 1; 2 is requiredThis can be caused by opening a unicode URL in a page test, and then navgating elsewhere. This is due to some buggy code in Python 2.4 that checks whether the object is an str, not whether it's a basestring. Note that canonical_url generates unicode urls.
NameError: name 'OverflowWarning' is not defined
Traceback (most recent call last):
File "jml.py", line 14, in <module>
from zope.component import getUtility
File "/srv/bazaar.staging.launchpad.net/staging/launchpad/lib/zope/component/__init__.py", line 23, in <module>
from zope.component.interfaces import IComponentArchitecture
File "/srv/bazaar.staging.launchpad.net/staging/launchpad/lib/zope/component/interfaces.py", line 24, in <module>
from zope.exceptions import NotFoundError
File "/srv/bazaar.staging.launchpad.net/staging/launchpad/lib/zope/exceptions/__init__.py", line 37, in <module>
from zope.exceptions._notfounderror import NotFoundError, INotFoundError
File "/srv/bazaar.staging.launchpad.net/staging/launchpad/lib/zope/exceptions/_notfounderror.py", line 21, in <module>
from zope.interface.common.interfaces import IKeyError
File "/srv/bazaar.staging.launchpad.net/staging/launchpad/lib/zope/interface/common/interfaces.py", line 80, in <module>
classImplements(OverflowWarning, IOverflowWarning)
NameError: name 'OverflowWarning' is not definedSolution: Use python2.4.
AttributeError: 'NoneType' object has no attribute 'poll'
Running canonical.testing.layers.TwistedAppServerLayer tests:
Set up canonical.testing.layers.ZopelessLayer in 3.350 seconds.
Set up canonical.testing.layers.DatabaseLayer in 0.457 seconds.
Set up canonical.testing.layers.LibrarianLayer in 4.786 seconds.
Set up canonical.testing.layers.LaunchpadLayer in 0.000 seconds.
Set up canonical.testing.layers.LaunchpadScriptLayer in 0.001 seconds.
Set up canonical.testing.layers.LaunchpadZopelessLayer in 0.000 seconds.
Set up canonical.testing.layers.TwistedLaunchpadZopelessLayer in 0.000 seconds.
Set up canonical.testing.layers.TwistedAppServerLayer in 31.229 seconds.
Running:
test_lock_with_magic_id (canonical.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration)Traceback (most recent call last):
File "./test.py", line 190, in ?
result = testrunner.run(defaults)
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 238, in run
failed = not run_with_options(options)
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 403, in run_with_options
setup_layers, failures, errors)
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 585, in run_layer
return run_tests(options, tests, layer_name, failures, errors)
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 513, in run_tests
test(result)
File "/home/mwh/canonical/checkouts/trunk/lib/twisted/trial/unittest.py", line 632, in __call__
return self.run(*args, **kwargs)
File "/home/mwh/canonical/checkouts/init-stack-pull/lib/canonical/codehosting/puller/tests/test_scheduler.py", line 681, in run
return TrialTestCase.run(self, result)
File "/home/mwh/canonical/checkouts/trunk/lib/twisted/trial/unittest.py", line 961, in run
result.stopTest(self)
File "/home/mwh/canonical/checkouts/trunk/lib/twisted/trial/unittest.py", line 1158, in stopTest
self.original.stopTest(method)
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 871, in stopTest
self.testTearDown()
File "/home/mwh/canonical/checkouts/trunk/lib/zope/testing/testrunner.py", line 755, in testTearDown
layer.testTearDown()
File "/home/mwh/canonical/checkouts/init-stack-pull/lib/canonical/testing/profiled.py", line 28, in profiled_func
return func(cls, *args, **kw)
File "/home/mwh/canonical/checkouts/init-stack-pull/lib/canonical/testing/layers.py", line 1535, in testTearDown
LayerProcessController.postTestInvariants()
File "/home/mwh/canonical/checkouts/init-stack-pull/lib/canonical/testing/profiled.py", line 28, in profiled_func
return func(cls, *args, **kw)
File "/home/mwh/canonical/checkouts/init-stack-pull/lib/canonical/testing/layers.py", line 1389, in postTestInvariants
if cls.appserver.poll() is not None:
AttributeError: 'NoneType' object has no attribute 'poll'Solution: probably one of "make build", "make schema" or "killing left over librarians".
