raise an exception in jinja if we passed in a variable that is not present in the template

Question

Is there a method for jinja2 to raise an exception when we pass a variable that is not present in the template?

PS: This is different(or opposite) from raising an except

Answer 1

Maybe this could help you https://jinja.palletsprojects.com/en/2.11.x/api/#the-meta-api

>>> from jinja2 import Environment, meta
>>> env = Environment()
>>> ast = env.parse('{% set foo = 42 %}{{ bar + foo }}')
>>> meta.find_undeclared_variables(ast)
set(['bar'])