This templatetag evaluates Python expressions including built-in functions, lambda functions etc... Use with caution.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | from django import template
register = template.Library()
@register.tag(name='eval')
def do_eval(parser, token):
"Usage: {% eval %}1 + 1{% endeval %}"
nodelist = parser.parse(('endeval',))
class EvalNode(template.Node):
def render(self, context):
return eval(nodelist.render(context))
parser.delete_first_token()
return EvalNode()
|
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