1 # Wrapper for loading templates from eggs via pkg_resources.resource_string.

     2 

     3 try:

     4     from pkg_resources import resource_string

     5 except ImportError:

     6     resource_string = None

     7 

     8 from django.template import TemplateDoesNotExist

     9 from django.conf import settings

    10 

    11 def load_template_source(template_name, template_dirs=None):

    12     """

    13     Loads templates from Python eggs via pkg_resource.resource_string.

    14 

    15     For every installed app, it tries to get the resource (app, template_name).

    16     """

    17     if resource_string is not None:

    18         pkg_name = 'templates/' + template_name

    19         for app in settings.INSTALLED_APPS:

    20             try:

    21                 return (resource_string(app, pkg_name).decode(settings.FILE_CHARSET), 'egg:%s:%s' % (app, pkg_name))

    22             except:

    23                 pass

    24     raise TemplateDoesNotExist, template_name

    25 load_template_source.is_usable = resource_string is not None