Django {% include_partial %} template tag

Django {% include_partial %} template tag

import re
from django.template import Context, Library, Node, Variable, TemplateSyntaxError
from django.template.loader import get_template, render_to_string

register = Library()

class PartialNode(Node):

    def __init__(self, partial, params):
        self.partial = partial
        self.params = params

    def render(self, context):
        context_params = {}

        for k, v in self.params.items():
            context_params[k] = Variable(v).resolve(context)

        t = get_template('%s' % self.partial)

        return t.render(Context(context_params))

@register.tag
def include_partial(parser, token):
    """
        Include a template snippet (partial) with it's own context
        Heavily based on http://freeasinbeard.org/post/107743420/render-partial-in-django
    """

    __doc__ = '{% include_partial "path/to/template.html" field=form.name label="string" arg3=foo %}'

    bits = token.split_contents()

    if len(bits) == 1:
        raise TemplateSyntaxError('Accepted format: %s' % __doc__)

    params = {}
    try:
        tag_name, partial = bits[:2]
        if partial.startswith('"'):
            partial = partial[1:-1]

        for bit in bits[2:]:
            s, key, value = re.split('^(\w+)=', bit)
            params[key] = value

    except ValueError:
        raise TemplateSyntaxError('Accepted format: %s' % __doc__)

    return PartialNode(partial, params)