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
26414	postgres_test fail with psycopg2==2.4.5	a-sh		"{{{#!bash

$ pip freeze |grep psycopg2
psycopg2==2.4.5

$ PYTHONPATH=..:$PYTHONPATH ./runtests.py postgres_tests
Traceback (most recent call last):
  File ""./runtests.py"", line 458, in <module>
    options.debug_sql, options.parallel)
  File ""./runtests.py"", line 275, in django_tests
    extra_tests=extra_tests,
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/test/runner.py"", line 532, in run_tests
    old_config = self.setup_databases()
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/test/runner.py"", line 482, in setup_databases
    self.parallel, **kwargs
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/test/runner.py"", line 726, in setup_databases
    serialize=connection.settings_dict.get(""TEST"", {}).get(""SERIALIZE"", True),
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/backends/base/creation.py"", line 78, in create_test_db
    self.connection._test_serialized_contents = self.serialize_db_to_string()
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/backends/base/creation.py"", line 122, in serialize_db_to_string
    serializers.serialize(""json"", get_objects(), indent=None, stream=out)
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/core/serializers/__init__.py"", line 129, in serialize
    s.serialize(queryset, **options)
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/core/serializers/base.py"", line 79, in serialize
    for count, obj in enumerate(queryset, start=1):
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/backends/base/creation.py"", line 118, in get_objects
    for obj in queryset.iterator():
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/models/query.py"", line 52, in __iter__
    results = compiler.execute_sql()
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/models/sql/compiler.py"", line 848, in execute_sql
    cursor.execute(sql, params)
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/backends/utils.py"", line 64, in execute
    return self.cursor.execute(sql, params)
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/utils.py"", line 95, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/db/backends/utils.py"", line 64, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column postgres_tests_integerarraymodel.field does not exist
LINE 1: SELECT ""postgres_tests_integerarraymodel"".""id"", ""postgres_te...
                                                        ^

}}}


Try import `ArrayField`
{{{#!bash
$ python -c 'from django.contrib.postgres.fields import ArrayField'
Traceback (most recent call last):
  File ""<string>"", line 1, in <module>
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/contrib/postgres/fields/__init__.py"", line 1, in <module>
    from .array import *  # NOQA
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/contrib/postgres/fields/array.py"", line 4, in <module>
    from django.contrib.postgres.forms import SimpleArrayField
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/contrib/postgres/forms/__init__.py"", line 4, in <module>
    from .ranges import *  # NOQA
  File ""/home/user/dev/env/django-1.9.3/local/lib/python2.7/site-packages/Django-1.9.3-py2.7.egg/django/contrib/postgres/forms/ranges.py"", line 1, in <module>
    from psycopg2.extras import DateRange, DateTimeTZRange, NumericRange
ImportError: cannot import name DateRange
[1]    6784 exit 1     python -c 'from django.contrib.postgres.fields import ArrayField'
}}}

then I check newer verision of psycopg2
{{{#!bash
$ pip install psycopg2==2.5.1
$ python -c 'from django.contrib.postgres.fields import ArrayField'

$ pip install psycopg2==2.6.1
$ python -c 'from django.contrib.postgres.fields import ArrayField'
}}}
tests would pass 

"	Bug	closed	contrib.postgres	1.9	Normal	duplicate			Unreviewed	1	0	0	0	0	0