How do I html-escape dangerous unsanitized input in jinja2?
e.g. {{ user.username|e }} Pipe it through the |e filter Jinja: Template Designer Documentation -> HTML Escaping
jinja2
Test Flask render_template() context
You can use the assert_template_used method of TestCase provided by flask-testing. from flask.ext.testing import TestCase class MyTest(TestCase): def create_app(self): return myflaskapp def test_greeting(self): self.app.get(“https://stackoverflow.com/”) self.assert_template_used(‘hello.html’) self.assert_context(“greeting”, “hello”) The method create_app must provide your flask app.
How do I use regular expressions in Jinja2?
There is an already existing filter called replace that you can use if you don’t actually need a regular expression. Otherwise, you can register a custom filter: {# Replace method #} {{my_str|replace(“some text”, “”)|replace(” “, “_”)}} # Custom filter method def regex_replace(s, find, replace): “””A non-optimal implementation of a regex filter””” return re.sub(find, replace, … Read more
Is there a way to hide the csrf label while looping through form using Flask and Flask-WTForms?
If you want a more general solution that works for all hidden fields instead of just the CSRF token: {{ form.hidden_tag() }} {% for field in form if field.widget.input_type != ‘hidden’ %} {{ field.label }} {{ field }} {% endfor %} form.hidden_tag() is supplied by Flask-WTF.
How to add a new entry into a dictionary object while using Jinja2?
Without the jinja2.ext.do extension, you can do this: {% set x=my_dict.__setitem__(“key”, “value”) %} Disregard the x variable and use the dictionary which is now updated. This also works for len() (__len__()), str() (__str__()), repr() (__repr__()) and many similar things.
how to append to a list in jinja2 for ansible
Try below code: {% set port=”1234″ %} {% set server_ip = [] %} {% for ip in host_ip %} {{ server_ip.append( ip+”:”+port ) }} {% endfor %} {{ server_ip|join(‘,’) }} You ll get: 192.168.56.14:1234,192.168.56.13:1234,192.168.56.10:1234
Append list variable to another list in Ansible
If you really want to append to content, you will need to use the set_fact module. But if you just want to use the merged lists it is as easy as this: {{ list1 + list2 }} With set_fact it would look like this: – set_fact: list_merged: “{{ list1 + list2 }}” NOTE: If you … Read more
Rendering a dictionary in Jinja2
Your url_list should look like this: url_list = [{‘target’: ‘http://10.58.48.103:5000/’, ‘clicks’: ‘1’}, {‘target’: ‘http://slash.org’, ‘clicks’: ‘4’}, {‘target’: ‘http://10.58.48.58:5000/’, ‘clicks’: ‘1’}, {‘target’: ‘http://de.com/a’, ‘clicks’: ‘0’}] Then using: <li>{{ item[“target”] }}</li> in your template will work. Edit 1: Your template think you’re passing a list in, so are you sure you’re passing in your original dict and … Read more
How can I escape double curly braces in jinja2?
{% raw %}{{ databasehost }}{% endraw %} should work. You can also use {{ ‘{{ databasehost }}’ }} as an alternative.
Python – ‘ascii’ codec can’t decode byte
Try to add this: import sys reload(sys) sys.setdefaultencoding(‘utf-8’) It fixed my problem, good luck.