id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
16447	settings_changed signal uses strings for sender	Alex Gaynor	nobody	"Since internally the sender is represented by the id() this is not valid, because there's no guarntee 2 strings of the same value have the same id().  This reproduces easily with PyPy:
{{{
alex@alex-gaynor-laptop:~/projects/django$ PYTHONPATH=`pwd` ~/projects/pypy/pypy-c tests/runtests.py --settings=test_sqlite settings_tests --failfast
Creating test database for alias 'default'...
Creating test database for alias 'other'...
...........F
======================================================================
FAIL: test_signal_callback_context_manager (regressiontests.settings_tests.tests.SettingsTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File ""/home/alex/projects/django/tests/regressiontests/settings_tests/tests.py"", line 80, in test_signal_callback_context_manager
    self.assertEqual(testvalue, 'override')
AssertionError: None != 'override'

----------------------------------------------------------------------
Ran 12 tests in 0.004s

FAILED (failures=1)
Destroying test database for alias 'default'...
Destroying test database for alias 'other'...
}}}

but it would also be possible to reproduce with CPython."	Bug	closed	Testing framework	dev	Normal	fixed			Unreviewed	0	0	0	0	0	0