Jinja2 if statement in vs equals on dict

Question

I'm new to Jinja2 and using it as part of Flask. I've got two statements below. The one with "in" works. The one with "equals" isn't. The equals version is getting a syntax error shown below. I'm curious as to why, as the way the equals version is written, to me at least, is easier to read.

{% if "SN" in P01["type"] %}
  {% include 'sn.html' %}
{% endif %}

{% if P01["type"] equals "SN" %}
  {% include 'sn.html' %}
{% endif %}

The errors message from jinja2.exceptions.TemplateSyntaxError

TemplateSyntaxError: expected token 'end of statement block', got 'equals'

Thank you.

Answer 1

In Jinja2 you would use == instead of equals, for example:

{% if P01["type"] == "SN" %}
  {% include 'sn.html' %}
{% endif %}

http://jinja.pocoo.org/docs/switching/#conditions

I'm pretty sure this is what you are looking for, but you should note that this has a different meaning than "SN" in P01["type"], using in is a substring test, so for example "foo" in "foobar" would be True.