#21348: RuntimeError: maximum recursion depth exceeded while calling a Python
object
----------------------------------------------+----------------------------
Reporter: un33k | Owner: nobody
Type: Bug | Status: new
Component: Database layer (models, ORM) | Version: master
Severity: Release blocker | Keywords: recursion
Triage Stage: Unreviewed | depth
Easy pickings: 0 | Has patch: 0
| UI/UX: 0
----------------------------------------------+----------------------------
'''Sample project to take Django 1.6 for a spin.
'''
Project works well with 1.6b4 and runs into the following problem as soon
as I upgrade to 1.6c1.
'''Env''':
1. Linux Ubuntu 12.04
2. Python 2.7.3
3. Sqlite3
4. Django 1.6c1
'''Done''':
1. Did a diff of tags: 1.6b4 and 1.6c1 and nothing jump out at me.
2. Searched Google and djangoproject.com for a duplicate ticket or a
possible fix. No result!
Creating the ticket to share my finding for speedier clouser.
Note: There is no 1.6-rc-1 yet, hence setting version to Master.
Please review and share you thoughts on this.
Thanks
'''---- LOG ----
'''
RuntimeError
RuntimeError: maximum recursion depth exceeded while calling a Python
object
Traceback (most recent call last)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/dozer/leak.py", line 111, in __call__
return self.app(environ, start_response)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
return self.application(environ, start_response)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/core/handlers/wsgi.py", line 206, in __call__
response = self.get_response(request)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/core/handlers/base.py", line 196, in get_response
response = self.handle_uncaught_exception(request, resolver,
sys.exc_info())
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/core/handlers/base.py", line 231, in
handle_uncaught_exception
return debug.technical_500_response(request, *exc_info)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/core/handlers/base.py", line 90, in get_response
response = middleware_method(request)
File
"/mnt/hgfs/Projects/workon/web/djangoware/djangoware/apps/userware/middleware/logout.py",
line 14, in process_request
if request.user.is_authenticated():
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/utils/functional.py", line 213, in inner
self._setup()
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/utils/functional.py", line 298, in _setup
self._wrapped = self._setupfunc()
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/contrib/auth/middleware.py", line 18, in <lambda>
request.user = SimpleLazyObject(lambda: get_user(request))
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/contrib/auth/middleware.py", line 10, in get_user
request._cached_user = auth.get_user(request)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/contrib/auth/__init__.py", line 137, in get_user
user = backend.get_user(user_id) or AnonymousUser()
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/contrib/auth/backends.py", line 69, in get_user
return UserModel._default_manager.get(pk=user_id)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/manager.py", line 151, in get
return self.get_queryset().get(*args, **kwargs)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/query.py", line 301, in get
num = len(clone)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/query.py", line 77, in __len__
self._fetch_all()
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/query.py", line 854, in _fetch_all
self._result_cache = list(self.iterator())
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/query.py", line 220, in iterator
for row in compiler.results_iter():
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/sql/compiler.py", line 710, in results_iter
for rows in self.execute_sql(MULTI):
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/models/sql/compiler.py", line 781, in execute_sql
cursor.execute(sql, params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/devserver/modules/sql.py", line 77, in execute
return super(DatabaseStatTracker, self).execute(sql, params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/util.py", line 69, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
............. hundreds of recursion on line 69 as above
...................
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/util.py", line 69, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/util.py", line 73, in execute
sql = self.db.ops.last_executed_query(self.cursor, sql, params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/__init__.py", line 854, in last_executed_query
u_params = tuple(to_unicode(val) for val in params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/__init__.py", line 854, in <genexpr>
u_params = tuple(to_unicode(val) for val in params)
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/db/backends/__init__.py", line 852, in <lambda>
to_unicode = lambda s: force_text(s, strings_only=True, errors='replace')
File "/mnt/hgfs/Projects/.web-virenv/djangoware/lib/python2.7/site-
packages/django/utils/encoding.py", line 93, in force_text
if isinstance(s, six.text_type):
RuntimeError: maximum recursion depth exceeded while calling a Python
object
The debugger caught an exception in your WSGI application. You can now
look at the traceback which led to the error.
To switch between the interactive traceback and the plaintext one, you can
click on the "Traceback" headline. From the text traceback you can also
create a paste of it. For code execution mouse-over the frame you want to
debug and click on the console icon on the right side.
You can execute arbitrary Python code in the stack frames and there are
some extra helpers available for introspection:
dump() shows all variables in the frame
dump(obj) dumps all that's known about the object
--
Ticket URL: <https://code.djangoproject.com/ticket/21348>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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