Django template tag for encoding images in base64 and rendering with server

staticencoder.py

from django import template
from django.contrib.staticfiles.finders import find as find_static_file
from django.conf import settings

register = template.Library()


@register.simple_tag
def encode_static(path, encoding='base64', file_type='image'):
    """
    a template tag that returns a encoded string representation of a staticfile

    Usage::

        {% encode_static path [encoding] %}

    Examples::

        <img src="{% encode_static 'path/to/img.png' %}">
    """
    file_path = find_static_file(path)
    ext = file_path.split('.')[-1]
    file_str = get_file_data(file_path).encode(encoding)
    return u"data:{0}/{1};{2},{3}".format(file_type, ext, encoding, file_str)

@register.simple_tag
def raw_static(path):
    """
    a template tag that returns a raw staticfile

    Usage::

        {% raw_static path %}

    Examples::
        <style>{% raw_static path/to/style.css %}</style>

    """
    if path.startswith(settings.STATIC_URL):
        # remove static_url if its included in the path
        path = path.replace(settings.STATIC_URL, '')
    file_path = find_static_file(path)
    return get_file_data(file_path)


def get_file_data(file_path):
    with open(file_path, 'rb') as f:
        data = f.read()
        f.close()
        return data

+1 for this, it's exactly what I needed.

I added a try/except clause in https://gist.github.com/Pettles/23b0d250417ff7183f183a64d8082f06, just because hitting an IOError (or any other exception) prevents the template from rendering entirely. So if one image fails to decode, etc. the while template dies.

Thanks again!

Thank you so much! I've implemented a modified version of @Pettles gist to make it work in Python 3.x. Link