Modify the jinja2.Environment global namespace itself if you see fit. import jinja2 env = jinja2.Environment() env.globals.update(zip=zip) # use env to load template(s) This may be helpful in separating view (template) logic from application logic, but it enables the reverse as well. #separationofconcerns
You can’t use break, you’d filter instead. From the Jinja2 documentation on {% for %}: Unlike in Python it’s not possible to break or continue in a loop. You can however filter the sequence during iteration which allows you to skip items. The following example skips all the users which are hidden: {% for user … Read more
Here are the results of the popular template engines for rendering a 10×1000 HTML table. Python 2.6.2 on a 3GHz Intel Core 2 Kid template 696.89 ms Kid template + cElementTree 649.88 ms Genshi template + tag builder 431.01 ms Genshi tag builder 389.39 ms Django template 352.68 ms Genshi template 266.35 ms ElementTree 180.06 … Read more
I know, the question is rather old but I found a nice solution to this problem. You can apply filters to whole text blocks: Template Designer Documentation / Filters {% filter indent(width=4) %} {% include “./sub-template.yml.j2” %} {% endfilter %}
The render_template function takes any number of keyword arguments. Query for each of the things you need in the template, then pass the results of each query as another argument to render_template. @app.route(“/user/<user_id>/post/<post_id>”) def im_research(user_id, post_id): user = get_user_by_id(id) post = get_user_post_by_id(user, id) return render_template(“post.html”, user=user, post=post) Python also has a built-in locals() function that … Read more
Try with quotes: alert(“{{name}}”);
Update: Using Jinja2 and Python 3, this worked quite nicely in the template without having to define any custom code: {{ “${:,.2f}”.format(543921.9354) }} I’m not sure exactly what the dependencies are to have this work, but IMHO anyone else reading this answer would do well to at least try it before worrying about custom filters.
From flask docs: Flask’s Context Processors 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 … Read more