TL;DR: Pass Unicode to template.render() Encode the rendered unicode result to a bytestring before writing it to a file This had me puzzled for a while. Because you do index_file.write( template.render(index_variables) ) in one statement, that’s basically just one line where Python is concerned, so the traceback you get is misleading: The exception I got … Read more
AFAIK you can’t do it using native Jinja2 templating. You’re better off creating a new combined iterable and passing that to your template, eg: from itertools import chain x = xrange(3) y = xrange(3, 7) z = chain(x, y) # pass this to your template for i in z: print i As per comments, you … Read more
I’m going to propose something even simpler than using a decorator or template method or anything like that: def render_sidebar_template(tmpl_name, **kwargs): (var1, var2, var3) = generate_sidebar_data() return render_template(tmpl_name, var1=var1, var2=var2, var3=var3, **kwargs) Yup, just a function. That’s all you really need, isn’t it? See this Flask Snippet for inspiration. It’s essentially doing exactly the same … Read more
This has to do with autoescaping. Solution that worked for me was: {% autoescape false %} {{ ‘item1|item2|item3’ | replace(“|”, “<br/>”) }} {% endautoescape %}
I had the same problem too. It’s a simple answer. This retrieves the last five items in site.posts: {% for recent in site.posts[-5:] %} {% for post in recent %} <li> <a href=”https://stackoverflow.com/{{ post.url }}”>{{ post.title }}</a></li> {% endfor %} {% endfor %}
I do not believe so. Typically you include or extend other templates by specifying their paths relative to the root of whatever template loader and environment you’re using. So let’s say your templates are all in /path/to/templates and you’ve set up Jinja like so: import jinja2 template_dir=”/path/to/templates” loader = jinja2.FileSystemLoader(template_dir) environment = jinja2.Environment(loader=loader) Now, if … Read more
You can put parens around the value that you want to round. (This works for division as well, contrary to what @sobri wrote.) {{ (deet.value/100)|round }} NOTE: round returns a float so if you really want the int you have to pass the value through that filter as well. {{ (deet.value/100)|round|int }}
This should work too. {% extends “layout.html” %} {% block body %} {{ data|safe }} {% endblock %}
With the pipe character you pass a value to a filter. There are numerous Jinja 2 filters but Ansible brings some additional filters. The term filter might be confusing at times because all the filters work very differently. Some for example reduce a result set of a hash/array, some modify contents of a string, but … Read more