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chapkovski/gist:5c7c34667882c3a159cfdc0aa515a4a2

Created August 10, 2018 13:09
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copypaste from django extends tag
Raw
gistfile1.txt
@register.tag('extends')
def do_extends(parser, token):
...
nodelist = parser.parse()
if nodelist.get_nodes_by_type(ExtendsNode):
raise TemplateSyntaxError("'%s' cannot appear more than once in the same template" % bits[0])
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