old_contents: #!/usr/bin/env python
  import sys
  import os
  
  import django
  from django.conf import settings
  
  
  if not settings.configured:
      # Choose database for settings
      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.sqlite3',
              'NAME': ':memory:'
          }
      }
  
      test_db = os.environ.get('DB', 'sqlite')
  
      if test_db == 'mysql':
          DATABASES['default'].update({
              'ENGINE': 'django.db.backends.mysql',
              'NAME': 'sendgrid',
              'USER': 'root',
          })
      elif test_db == 'postgres':
          DATABASES['default'].update({
              'ENGINE': 'django.db.backends.postgresql_psycopg2',
              'USER': 'postgres',
              'NAME': 'sendgrid',
              'OPTIONS': {
                  'autocommit': True,
              }
          })
  
      settings.configure(
          DATABASES=DATABASES,
          INSTALLED_APPS=(
              'django.contrib.contenttypes',
              'sendgrid',
          ),
          SITE_ID=1,
          SECRET_KEY='this-is-just-for-tests-so-not-that-secret',
          ROOT_URLCONF='sendgrid.urls',
          TIME_ZONE='UTC',  # so we can switch USE_TZ on and off in-flight with postgres
      )
  
  
  from django.test.utils import get_runner
  
  
  def run_tests():
      if hasattr(django, 'setup'):
          django.setup()
      apps = sys.argv[1:] or ['sendgrid', ]
      test_runner = get_runner(settings)
      test_runner = test_runner(verbosity=1, interactive=True, failfast=False)
      failures = test_runner.run_tests(apps)
      sys.exit(failures)
  
  
  if __name__ == '__main__':
      run_tests()
  
new_contents: #!/usr/bin/env python
  import sys
  import os
  
  import django
  from django.conf import settings
  
  
  if not settings.configured:
      # Choose database for settings
      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.sqlite3',
              'NAME': ':memory:'
          }
      }
  
      test_db = os.environ.get('DB', 'sqlite')
  
      if test_db == 'mysql':
          DATABASES['default'].update({
              'ENGINE': 'django.db.backends.mysql',
              'NAME': 'sendgrid',
              'USER': 'root',
          })
      elif test_db == 'postgres':
          DATABASES['default'].update({
              'ENGINE': 'django.db.backends.postgresql_psycopg2',
              'USER': 'postgres',
              'NAME': 'sendgrid',
              'OPTIONS': {
                  'autocommit': True,
              }
          })
  
      settings.configure(
          DATABASES=DATABASES,
          INSTALLED_APPS=(
              'django.contrib.contenttypes',
              'sendgrid',
          ),
          SITE_ID=1,
          SECRET_KEY='this-is-just-for-tests-so-not-that-secret',
          ROOT_URLCONF='sendgrid.urls',
          TIME_ZONE='UTC',  # so we can switch USE_TZ on and off in-flight with postgres
          MIDDLEWARE_CLASSES=('django.middleware.csrf.CsrfViewMiddleware', )
      )
  
  
  from django.test.utils import get_runner
  
  
  def run_tests():
      if hasattr(django, 'setup'):
          django.setup()
      apps = sys.argv[1:] or ['sendgrid', ]
      test_runner = get_runner(settings)
      test_runner = test_runner(verbosity=1, interactive=True, failfast=False)
      failures = test_runner.run_tests(apps)
      sys.exit(failures)
  
  
  if __name__ == '__main__':
      run_tests()
  
subject: add csrf middleware to testing config