diff -r b758351d191f -r cc9b7e14412b web/lib/django/template/loaders/app_directories.py
--- a/web/lib/django/template/loaders/app_directories.py	Wed May 19 17:43:59 2010 +0200
+++ b/web/lib/django/template/loaders/app_directories.py	Tue May 25 02:43:45 2010 +0200
@@ -9,6 +9,7 @@
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.template import TemplateDoesNotExist
+from django.template.loader import BaseLoader
 from django.utils._os import safe_join
 from django.utils.importlib import import_module
 
@@ -19,7 +20,7 @@
     try:
         mod = import_module(app)
     except ImportError, e:
-        raise ImproperlyConfigured, 'ImportError %s: %s' % (app, e.args[0])
+        raise ImproperlyConfigured('ImportError %s: %s' % (app, e.args[0]))
     template_dir = os.path.join(os.path.dirname(mod.__file__), 'templates')
     if os.path.isdir(template_dir):
         app_template_dirs.append(template_dir.decode(fs_encoding))
@@ -27,29 +28,47 @@
 # It won't change, so convert it to a tuple to save memory.
 app_template_dirs = tuple(app_template_dirs)
 
-def get_template_sources(template_name, template_dirs=None):
-    """
-    Returns the absolute paths to "template_name", when appended to each
-    directory in "template_dirs". Any paths that don't lie inside one of the
-    template dirs are excluded from the result set, for security reasons.
-    """
-    if not template_dirs:
-        template_dirs = app_template_dirs
-    for template_dir in template_dirs:
-        try:
-            yield safe_join(template_dir, template_name)
-        except UnicodeDecodeError:
-            # The template dir name was a bytestring that wasn't valid UTF-8.
-            raise
-        except ValueError:
-            # The joined path was located outside of template_dir.
-            pass
+class Loader(BaseLoader):
+    is_usable = True
+
+    def get_template_sources(self, template_name, template_dirs=None):
+        """
+        Returns the absolute paths to "template_name", when appended to each
+        directory in "template_dirs". Any paths that don't lie inside one of the
+        template dirs are excluded from the result set, for security reasons.
+        """
+        if not template_dirs:
+            template_dirs = app_template_dirs
+        for template_dir in template_dirs:
+            try:
+                yield safe_join(template_dir, template_name)
+            except UnicodeDecodeError:
+                # The template dir name was a bytestring that wasn't valid UTF-8.
+                raise
+            except ValueError:
+                # The joined path was located outside of template_dir.
+                pass
+
+    def load_template_source(self, template_name, template_dirs=None):
+        for filepath in self.get_template_sources(template_name, template_dirs):
+            try:
+                file = open(filepath)
+                try:
+                    return (file.read().decode(settings.FILE_CHARSET), filepath)
+                finally:
+                    file.close()
+            except IOError:
+                pass
+        raise TemplateDoesNotExist(template_name)
+
+_loader = Loader()
 
 def load_template_source(template_name, template_dirs=None):
-    for filepath in get_template_sources(template_name, template_dirs):
-        try:
-            return (open(filepath).read().decode(settings.FILE_CHARSET), filepath)
-        except IOError:
-            pass
-    raise TemplateDoesNotExist, template_name
+    # For backwards compatibility
+    import warnings
+    warnings.warn(
+        "'django.template.loaders.app_directories.load_template_source' is deprecated; use 'django.template.loaders.app_directories.Loader' instead.",
+        PendingDeprecationWarning
+    )
+    return _loader.load_template_source(template_name, template_dirs)
 load_template_source.is_usable = True