it works. but coverage is too low.

src/django_deploy/utils.py

@@ -1,41 +1,29 @@
 import importlib
 import os
 import sys
-import django
+import mock
 
 from .config import DJANGO_SETTINGS_DIR
 
 
-class DjangoEnvironment(object):
-    def __init__(self, project_dir=None, settings_module_name=None):
-        self.project_dir = project_dir
+def get_root_urlconf(project_dir):
+    if 'django.contrib' in sys.modules:
+        original_contrib = sys.modules['django.contrib']
+    else:
+        original_contrib = None
+    mock_contrib = mock.Mock(name='django.contrib')
+    sys.modules['django.contrib'] = mock_contrib
 
-        if settings_module_name is not None:
-            self.settings_module_name = settings_module_name
-        else:
-            self.settings_module_name = '{}.settings'.format(DJANGO_SETTINGS_DIR)
+    settings_dir = os.path.join(project_dir, DJANGO_SETTINGS_DIR)
+    sys.path.insert(0, settings_dir)
+    root_urlconf = importlib.import_module('urls')
+    if sys.version_info.major == 2:  # pragma: no cover
+        reload(root_urlconf)  # pylint: disable=undefined-variable
+    else:  # pragma: no cover
+        importlib.reload(root_urlconf)  # pylint: disable=no-member
+    sys.path.pop(0)
 
-        self._original_sys_path = None
-        self._modified_sys_path = None
+    if original_contrib:
+        sys.modules['django.contrib'] = original_contrib
 
-    def __enter__(self):
-        if self.project_dir:
-            self._original_sys_path = sys.path
-            sys.path.insert(0, self.project_dir)
-            self._modified_sys_path = sys.path
-
-        print('Debug: %s' % self.settings_module_name)
-        os.environ['DJANGO_SETTINGS_MODULE'] = self.settings_module_name
-        django.setup()
-
-        from django.conf import settings
-        self.settings = settings
-        if hasattr(settings, 'ROOT_URLCONF'):
-            self.root_urlconf = importlib.import_module(settings.ROOT_URLCONF)
-
-        return self
-
-    def __exit__(self, *args):
-        if self._modified_sys_path is not None and self._original_sys_path is not None:
-            if sys.path == self._modified_sys_path:
-                sys.path = self._original_sys_path
+    return root_urlconf