--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/template/loaders/app_directories.py	Fri Jul 18 18:22:23 2008 +0000
@@ -0,0 +1,52 @@
+"""
+Wrapper for loading templates from "template" directories in INSTALLED_APPS
+packages.
+"""
+
+import os
+
+from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
+from django.template import TemplateDoesNotExist
+from django.utils._os import safe_join
+
+# At compile time, cache the directories to search.
+app_template_dirs = []
+for app in settings.INSTALLED_APPS:
+    i = app.rfind('.')
+    if i == -1:
+        m, a = app, None
+    else:
+        m, a = app[:i], app[i+1:]
+    try:
+        if a is None:
+            mod = __import__(m, {}, {}, [])
+        else:
+            mod = getattr(__import__(m, {}, {}, [a]), a)
+    except ImportError, e:
+        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)
+
+# 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):
+    if not template_dirs:
+        template_dirs = app_template_dirs
+    for template_dir in template_dirs:
+        try:
+            yield safe_join(template_dir, template_name)
+        except ValueError:
+            # The joined path was located outside of template_dir.
+            pass
+
+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
+load_template_source.is_usable = True