psycopg2 ver >= 2.8 adds connection.info object

[mozartilize]

I dont know where to report this, maybe it should be implemented in sqlalchemy but I'm quite not sure.

psycopg2 ver >= 2.8 adds connection.info object and the pool connection get from sqlalchemy pool actually has info object but it's an empty dict so it causes this error

In [1]: from django.db import connection                                                                                                                                                                                                                                          

In [2]: c = connection.cursor()                                                                                                                                                                                                                                                   
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-2-5783720e8456> in <module>
----> 1 c = connection.cursor()

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/db/backends/base/base.py in cursor(self)
    252         Creates a cursor, opening a connection if necessary.
    253         """
--> 254         return self._cursor()
    255 
    256     def commit(self):

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/db/backends/base/base.py in _cursor(self, name)
    227 
    228     def _cursor(self, name=None):
--> 229         self.ensure_connection()
    230         with self.wrap_database_errors:
    231             return self._prepare_cursor(self.create_cursor(name))

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/db/backends/base/base.py in ensure_connection(self)
    211         if self.connection is None:
    212             with self.wrap_database_errors:
--> 213                 self.connect()
    214 
    215     # ##### Backend-specific wrappers for PEP-249 connection methods #####

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/db/backends/base/base.py in connect(self)
    190         self.set_autocommit(self.settings_dict['AUTOCOMMIT'])
    191         self.init_connection_state()
--> 192         connection_created.send(sender=self.__class__, connection=self)
    193 
    194         self.run_on_commit = []

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/dispatch/dispatcher.py in send(self, sender, **named)
    191         return [
    192             (receiver, receiver(signal=self, sender=sender, **named))
--> 193             for receiver in self._live_receivers(sender)
    194         ]
    195 

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/dispatch/dispatcher.py in <listcomp>(.0)
    191         return [
    192             (receiver, receiver(signal=self, sender=sender, **named))
--> 193             for receiver in self._live_receivers(sender)
    194         ]
    195 

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/django/contrib/postgres/signals.py in register_type_handlers(connection, **kwargs)
     14             register_hstore(connection.connection, globally=True, unicode=True)
     15         else:
---> 16             register_hstore(connection.connection, globally=True)
     17     except ProgrammingError:
     18         # Hstore is not available on the database.

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/psycopg2/extras.py in register_hstore(conn_or_curs, globally, unicode, oid, array_oid)
    956     """
    957     if oid is None:
--> 958         oid = HstoreAdapter.get_oids(conn_or_curs)
    959         if oid is None or not oid[0]:
    960             raise psycopg2.ProgrammingError(

~/.local/share/virtualenvs/atom-admin-py3.6/lib/python3.6/site-packages/psycopg2/extras.py in get_oids(self, conn_or_curs)
    901 
    902         # column typarray not available before PG 8.3
--> 903         typarray = conn.info.server_version >= 80300 and "typarray" or "NULL"
    904 
    905         rv0, rv1 = [], []

AttributeError: 'dict' object has no attribute 'server_version'