old_contents: #! /usr/bin/env python
  """From http://stackoverflow.com/a/12260597/400691."""
  import os
  import sys
  
  import dj_database_url
  import django
  from colour_runner.django_runner import ColourRunnerMixin
  from django.conf import settings
  from django.test.runner import DiscoverRunner
  
  
  BASEDIR = os.path.dirname(os.path.dirname(__file__))
  PUBLIC_PGP_KEY_PATH = os.path.abspath(os.path.join(BASEDIR, 'tests/keys/public.key'))
  PRIVATE_PGP_KEY_PATH = os.path.abspath(os.path.join(BASEDIR, 'tests/keys/private.key'))
  
  
  settings.configure(
      DATABASES={
          'default': dj_database_url.config(
              default='postgres://localhost/pgcrypto_fields'
          ),
      },
      INSTALLED_APPS=(
          'pgcrypto_fields',
          'tests',
      ),
      MIDDLEWARE_CLASSES = (),
      PUBLIC_PGP_KEY=open(PUBLIC_PGP_KEY_PATH, 'r').read(),
      PRIVATE_PGP_KEY=open(PRIVATE_PGP_KEY_PATH, 'r').read(),
      PGCRYPTO_KEY='ultrasecret',
  )
  
  
  if django.VERSION >= (1, 7):
      django.setup()
  
  
  class TestRunner(ColourRunnerMixin, DiscoverRunner):
      """Enable colorised output."""
  
  
  test_runner = TestRunner(verbosity=1)
  failures = test_runner.run_tests(['tests'])
  if failures:
      sys.exit(1)
  
new_contents: #! /usr/bin/env python
  """From http://stackoverflow.com/a/12260597/400691."""
  import os
  import sys
  
  import dj_database_url
  import django
  from colour_runner.django_runner import ColourRunnerMixin
  from django.conf import settings
  from django.test.runner import DiscoverRunner
  
  
  BASEDIR = os.path.dirname(os.path.dirname(__file__))
  PUBLIC_PGP_KEY_PATH = os.path.abspath(os.path.join(BASEDIR, 'tests/keys/public.key'))
  PRIVATE_PGP_KEY_PATH = os.path.abspath(os.path.join(BASEDIR, 'tests/keys/private.key'))
  
  
  settings.configure(
      DATABASES={
          'default': dj_database_url.config(
              default='postgres://localhost/pgcrypto_fields'
          ),
      },
      INSTALLED_APPS=(
          'pgcrypto_fields',
          'tests',
      ),
      MIDDLEWARE_CLASSES=(),
      PUBLIC_PGP_KEY=open(PUBLIC_PGP_KEY_PATH, 'r').read(),
      PRIVATE_PGP_KEY=open(PRIVATE_PGP_KEY_PATH, 'r').read(),
      PGCRYPTO_KEY='ultrasecret',
  )
  
  
  if django.VERSION >= (1, 7):
      django.setup()
  
  
  class TestRunner(ColourRunnerMixin, DiscoverRunner):
      """Enable colorised output."""
  
  
  test_runner = TestRunner(verbosity=1)
  failures = test_runner.run_tests(['tests'])
  if failures:
      sys.exit(1)
  
subject: Fix pep8 error