How to output a comma delimited list in jinja python template?
You want your if check to be:
{% if not loop.last %} ,{% endif %}Note that you can also shorten the code by using If Expression:
{{ ", " if not loop.last else "" }}
you could also use the builtin "join" filter (http://jinja.pocoo.org/docs/templates/#join like this:
{{ users|join(', ') }}
And using the joiner from https://jinja.palletsprojects.com/templates/#joiner
{% set comma = joiner(",") %}{% for user in userlist %} {{ comma() }}<a href="/profile/{{ user }}/">{{ user }}</a>{% endfor %} It's made for this exact purpose. Normally a join or a check of forloop.last would suffice for a single list, but for multiple groups of things it's useful.
A more complex example on why you would use it.
{% set pipe = joiner("|") %}{% if categories %} {{ pipe() }} Categories: {{ categories|join(", ") }}{% endif %}{% if author %} {{ pipe() }} Author: {{ author() }}{% endif %}{% if can_edit %} {{ pipe() }} <a href="?action=edit">Edit</a>{% endif %}