code: def _find_filepath_in_roots(filename):
      
      for root in settings.DJANGO_STATIC_MEDIA_ROOTS:
          filepath = _filename2filepath(filename, root)
          if os.path.isfile(filepath):
              return filepath, root
      # havent found it in DJANGO_STATIC_MEDIA_ROOTS look for apps' files if we're
      #  in DEBUG mode
      if settings.DEBUG:
          try:
              from django.contrib.staticfiles import finders
              absolute_path = finders.find(filename)
              if absolute_path:
                  root, filepath = os.path.split(absolute_path)
                  return absolute_path, root
          except ImportError:
              pass
      return None, None
docs: Look for filename in all MEDIA_ROOTS, and return the first one found.