+
−# Wrapper for loading templates from eggs via pkg_resources.resource_string.
+
−
+
−try:
+
−    from pkg_resources import resource_string
+
−except ImportError:
+
−    resource_string = None
+
−
+
−from django.template import TemplateDoesNotExist
+
−from django.conf import settings
+
−
+
−def load_template_source(template_name, template_dirs=None):
+
−    """
+
−    Loads templates from Python eggs via pkg_resource.resource_string.
+
−
+
−    For every installed app, it tries to get the resource (app, template_name).
+
−    """
+
−    if resource_string is not None:
+
−        pkg_name = 'templates/' + template_name
+
−        for app in settings.INSTALLED_APPS:
+
−            try:
+
−                return (resource_string(app, pkg_name).decode(settings.FILE_CHARSET), 'egg:%s:%s' % (app, pkg_name))
+
−            except:
+
−                pass
+
−    raise TemplateDoesNotExist, template_name
+
−load_template_source.is_usable = resource_string is not None