      to locate files.
      """
      def __init__(self, apps=None, *args, **kwargs):
          # Maps dir paths to an appropriate storage instance
          self.storages = SortedDict()
          if not isinstance(settings.STATICFILES_DIRS, (list, tuple)):
              raise ImproperlyConfigured(
                  "Your STATICFILES_DIRS setting is not a tuple or list; "
                  "perhaps you forgot a trailing comma?")
 
</s> remove             self.locations.add((prefix, root))
        # Don't initialize multiple storages for the same location
 </s> add             if (prefix, root) not in self.locations:
                self.locations.append((prefix, root)) </s> remove         # Set of locations with static files
        self.locations = set()
 </s> add 
        # List of locations with static files
        self.locations = []
      to locate files.
      """
      def __init__(self, apps=None, *args, **kwargs):
        # List of locations with static files
        self.locations = []
          # Maps dir paths to an appropriate storage instance
          self.storages = SortedDict()
          if not isinstance(settings.STATICFILES_DIRS, (list, tuple)):
              raise ImproperlyConfigured(
                  "Your STATICFILES_DIRS setting is not a tuple or list; "
                  "perhaps you forgot a trailing comma?")
keep keep add keep keep keep keep keep keep
 Preserve order of STATICFILES_DIRS locations in FileSystemFinder.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15389 bcc190cf-cafb-0310-a4f2-bffc1f526a37 
django/contrib/staticfiles/finders.py