How to detect debug mode in jinja?
To inject new variables automatically into the context of a template, context processors exist in Flask. Context processors run before the template is rendered and have the ability to inject new values into the template context. A context processor is a function that returns a dictionary. The keys and values of this dictionary are then merged with the template context, for all templates in the app:
@app.context_processordef inject_debug(): return dict(debug=app.debug)now debug variable accessible in templates.