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pythonflaskjinja2

quote_plus URL-encode filter in Jinja2

There is a urlencode filter in Jinja, which can be used with {{ url | urlencode }}, but I'm looking for a "plus" version that replaces spaces with + instead of %20, like urllib.quote_plus(). Is there anything off the shelf or is it a time for a custom filter?

Solution

  • No, Jinja2 does not have a built-in method that functions like quote_plus; you will need to create a custom filter.

    Python

    from flask import Flask
# for python2 use 'from urllib import quote_plus' instead
from urllib.parse import quote_plus

app = Flask('my_app')    
app.jinja_env.filters['quote_plus'] = lambda u: quote_plus(u)

    HTML

    <html>
   {% set url = 'http://stackoverflow.com/questions/33450404/quote-plus-urlencode-filter-in-jinja' %}
   {{ url|quote_plus }}
</html>