Django and psycopg2cffi

[volvofixthis]

I have strange behaviour with django 1.11 and different versions of psycopg2cffi. Here is traceback:

Environment:

Request Method: GET
Request URL: http://testpolls.rbc.ru/v1/api/rest/user/

Django Version: 1.11
Python Version: 2.7.13
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'suit',
'debug_toolbar',
'django.contrib.admin',
'rest_framework',
'social_django',
'django_select2',
'raven.contrib.django.raven_compat',
'apps.back')
Installed Middleware:
(u'raven.contrib.django.middleware.SentryMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'apps.back.change_http_host.ChangeHttpHost',
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')

Traceback:

File "/www/polls/pypy_env/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)

File "/www/polls/pypy_env/site-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)

File "/www/polls/pypy_env/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)

File "/www/polls/pypy_env/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/www/polls/pypy_env/site-packages/django/views/decorators/csrf.py" in wrapped_view
58. return view_func(*args, **kwargs)

File "/www/polls/pypy_env/site-packages/django/views/generic/base.py" in view
68. return self.dispatch(request, *args, **kwargs)

File "/www/polls/pypy_env/site-packages/rest_framework/views.py" in dispatch
489. response = self.handle_exception(exc)

File "/www/polls/pypy_env/site-packages/rest_framework/views.py" in handle_exception
449. self.raise_uncaught_exception(exc)

File "/www/polls/pypy_env/site-packages/rest_framework/views.py" in dispatch
477. self.initial(request, *args, **kwargs)

File "/www/polls/pypy_env/site-packages/rest_framework/views.py" in initial
394. self.perform_authentication(request)

File "/www/polls/pypy_env/site-packages/rest_framework/views.py" in perform_authentication
320. request.user

File "/www/polls/pypy_env/site-packages/rest_framework/request.py" in getattribute
381. return super(Request, self).getattribute(attr)

File "/www/polls/pypy_env/site-packages/rest_framework/request.py" in user
196. self._authenticate()

File "/www/polls/pypy_env/site-packages/rest_framework/request.py" in _authenticate
345. user_auth_tuple = authenticator.authenticate(self)

File "/www/polls/pypy_env/site-packages/rest_framework/authentication.py" in authenticate
125. if not user or not user.is_active:

File "/www/polls/pypy_env/site-packages/django/utils/functional.py" in inner
238. self._setup()

File "/www/polls/pypy_env/site-packages/django/utils/functional.py" in _setup
385. self._wrapped = self._setupfunc()

File "/www/polls/pypy_env/site-packages/django/contrib/auth/middleware.py" in
24. request.user = SimpleLazyObject(lambda: get_user(request))

File "/www/polls/pypy_env/site-packages/django/contrib/auth/middleware.py" in get_user
12. request._cached_user = auth.get_user(request)

File "/www/polls/pypy_env/site-packages/django/contrib/auth/init.py" in get_user
213. user = backend.get_user(user_id)

File "/www/polls/pypy_env/site-packages/django/contrib/auth/backends.py" in get_user
102. user = UserModel._default_manager.get(pk=user_id)

File "/www/polls/pypy_env/site-packages/django/db/models/manager.py" in manager_method
85. return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/www/polls/pypy_env/site-packages/django/db/models/query.py" in get
373. num = len(clone)

File "/www/polls/pypy_env/site-packages/django/db/models/query.py" in len
232. self._fetch_all()

File "/www/polls/pypy_env/site-packages/django/db/models/query.py" in _fetch_all
1102. self._result_cache = list(self._iterable_class(self))

File "/www/polls/pypy_env/site-packages/django/db/models/query.py" in iter
53. results = compiler.execute_sql(chunked_fetch=self.chunked_fetch)

File "/www/polls/pypy_env/site-packages/django/db/models/sql/compiler.py" in execute_sql
874. cursor = self.connection.cursor()

File "/www/polls/pypy_env/site-packages/debug_toolbar/panels/sql/tracking.py" in cursor
48. return state.Wrapper(connection._djdt_cursor(*args, **kwargs), connection, panel)

File "/www/polls/pypy_env/site-packages/django/db/backends/base/base.py" in cursor
254. return self._cursor()

File "/www/polls/pypy_env/site-packages/django/db/backends/base/base.py" in _cursor
229. self.ensure_connection()

File "/www/polls/pypy_env/site-packages/django/db/backends/base/base.py" in ensure_connection
213. self.connect()

File "/www/polls/pypy_env/site-packages/django/db/backends/base/base.py" in connect
190. self.set_autocommit(self.settings_dict['AUTOCOMMIT'])

File "/www/polls/pypy_env/site-packages/django/db/backends/base/base.py" in set_autocommit
411. self._set_autocommit(autocommit)

File "/www/polls/pypy_env/site-packages/django/db/backends/postgresql/base.py" in _set_autocommit
236. self.connection.autocommit = autocommit

File "/www/polls/pypy_env/site-packages/django/db/utils.py" in exit
94. six.reraise(dj_exc_type, dj_exc_value, traceback)

File "/www/polls/pypy_env/site-packages/django/db/backends/postgresql/base.py" in _set_autocommit
236. self.connection.autocommit = autocommit

File "/www/polls/pypy_env/site-packages/psycopg2cffi/_impl/connection.py" in autocommit
313. self.set_session(autocommit=value)

File "/www/polls/pypy_env/site-packages/psycopg2cffi/impl/connection.py" in check_closed
43. return func(self, *args, **kwargs)

File "/www/polls/pypy_env/site-packages/psycopg2cffi/impl/connection.py" in check_notrans
51. raise exceptions.ProgrammingError('not valid in transaction')

Exception Type: ProgrammingError at /v1/api/rest/user/
Exception Value: not valid in transaction

[volvofixthis]

It was django initalization, i submitted patch already.

[lopuhin]

PR is #89, I'll need to check what psycopg2 does in this case