How to write a multiline Jinja statement

Question

I have an if statement in my Jinja templates which I want to write it in multines for readability reasons. Consider the case

{% if (foo == 'foo' or bar == 'bar') and (fooo == 'fooo' or baar == 'baar') etc.. %} 

Answer 1

According to the documentation: https://jinja.palletsprojects.com/en/2.10.x/templates/#line-statements you may use multi-line statements as long as the code has parens/brackets around it. Example:

{% if ( (foo == 'foo' or bar == 'bar') and          (fooo == 'fooo' or baar == 'baar') ) %}     <li>some text</li> {% endif %} 

Edit: Using line_statement_prefix = '#'* the code would look like this:

# if ( (foo == 'foo' or bar == 'bar') and         (fooo == 'fooo' or baar == 'baar') )     <li>some text</li> # endif 

*Here's an example of how you'd specify the line_statement_prefix in the Environment:

from jinja2 import Environment, PackageLoader, select_autoescape env = Environment(     loader=PackageLoader('yourapplication', 'templates'),     autoescape=select_autoescape(['html', 'xml']),     line_statement_prefix='#' ) 

Or using Flask:

from flask import Flask app = Flask(__name__, instance_relative_config=True, static_folder='static') app.jinja_env.filters['zip'] = zip app.jinja_env.line_statement_prefix = '#'