CODEWITHSUNDEEP
pythonjinja2
badbishop
badbishop

Reputation: 1668

How to Make Rendering Fail if Object has no Attribute?

If an object obj has no attribute foo, then I would like referring to {{obj.foo}} in a Jinja2 template to fail when rendering.

Currently I'm getting the template text with empty variables. How to get the standard AttributeError exception instead?

Sample code looks like this:

class Foo:
    pass
  
env = Environment(
        loader=PackageLoader("mydistro"),
        autoescape=select_autoescape()
    )   

t = env.get_template("template/path/to.j2")
print(t.render(obj=Foo()))

Upvotes: 0

Views: 55

Answers (1)

AKX
AKX

Reputation: 169338

Initialize your environment with StrictUndefined as the undefined class.

env = Environment(
    loader=PackageLoader("mydistro"),
    autoescape=select_autoescape(),
    undefined=StrictUndefined,
)

Upvotes: 2

Related Questions