from django.utils.translation import ugettext_lazy as _
from django.core.validators import RegexValidator
from django.core.exceptions import ValidationError
-from django.template import Template, Parser, Lexer, TOKEN_BLOCK, TOKEN_VAR
+from django.template import Template, Parser, Lexer, TOKEN_BLOCK, TOKEN_VAR, TemplateSyntaxError
from django.utils import simplejson as json
import re
from philo.utils import LOADED_TEMPLATE_ATTR