title: Raise Improperly configured psycopg2(postgresql)
body: <p>I am new to django. I had tried to configure postgresql with my project.
  steps what i followed:</p>
  
  <p>1) sudo apt-get install psycopg2</p>
  
  <p>2) changing settings.py</p>
  
  <pre><code>DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.postgresql_psycopg2',
          'NAME': 'dbname',
          'USER': 'postgres',
          'PASSWORD': 'postgres',
          'HOST': '',
          'PORT': '',
      }
  }
  </code></pre>
  
  <p>3) running python manage.py makemigrations</p>
  
  <p>but i am getting error</p>
  
  <pre><code>Traceback (most recent call last):
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 20, in &lt;module&gt;
      import psycopg2 as Database
  ImportError: No module named 'psycopg2'
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "manage.py", line 10, in &lt;module&gt;
      execute_from_command_line(sys.argv)
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
      utility.execute()
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 312, in execute
      django.setup()
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/__init__.py", line 18, in setup
      apps.populate(settings.INSTALLED_APPS)
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/apps/registry.py", line 108, in populate
      app_config.import_models(all_models)
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/apps/config.py", line 198, in import_models
      self.models_module = import_module(models_module_name)
    File "/home/vivekpradhan/joker/basket/lib/python3.4/importlib/__init__.py", line 109, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 2231, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 2214, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 2203, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 1200, in _load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 1129, in _exec
    File "&lt;frozen importlib._bootstrap&gt;", line 1448, in exec_module
    File "&lt;frozen importlib._bootstrap&gt;", line 321, in _call_with_frames_removed
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/contrib/auth/models.py", line 41, in &lt;module&gt;
      class Permission(models.Model):
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/models/base.py", line 139, in __new__
      new_class.add_to_class('_meta', Options(meta, **kwargs))
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/models/base.py", line 324, in add_to_class
      value.contribute_to_class(cls, name)
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/models/options.py", line 250, in contribute_to_class
      self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/__init__.py", line 36, in __getattr__
      return getattr(connections[DEFAULT_DB_ALIAS], item)
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/utils.py", line 240, in __getitem__
      backend = load_backend(db['ENGINE'])
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/utils.py", line 111, in load_backend
      return import_module('%s.base' % backend_name)
    File "/home/vivekpradhan/joker/basket/lib/python3.4/importlib/__init__.py", line 109, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 2231, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 2214, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 2203, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 1200, in _load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 1129, in _exec
    File "&lt;frozen importlib._bootstrap&gt;", line 1448, in exec_module
    File "&lt;frozen importlib._bootstrap&gt;", line 321, in _call_with_frames_removed
    File "/home/vivekpradhan/joker/basket/local/lib/python3.4/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 24, in &lt;module&gt;
      raise ImproperlyConfigured("Error loading psycopg2 module: %s" % e)
  django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: No module named 'psycopg2'
  </code></pre>