breakpoints in flask jinja templates

Question

Is there a way to put breakpoints in a jinja template that is being rendered from flask ? Maybe something that can enable you do inspect the variables that are available to the template at various points in the template ? Ive seen a blog that says you can do it in django https://opensourcehacker.com/2013/05/16/putting-breakpoints-to-html-templates-in-python/ was hoping for something similar with flask.

Answer 1

Flask has app_context_processor make variables available on templates:

Context processors run before the template is rendered and have the ability to inject new values into the template context.

class Letters():
    A = 1
    B = 2

@app.context_processor
def share_context():
    return dict(Letters=Letters)

Now you can access this class

# index.html
{{ Letters.A }}
{% if Letters.B != 1 %}
...
{% endif %}

flask context processors