from hashlib import md5
from django import template
from django.utils.encoding import smart_bytes
register = template.Library()
@register.filter()
def gravatar(email, size=64):
"""
Return the Gravatar URL for the provided email.
:param email: the email address to hash
:param size: the size of the Gravatar to generate
:returns: the URL of the image
"""
return '//gravatar.com/avatar/%s?d=identicon&size=%s' % (
md5(smart_bytes(email)).hexdigest(),
size,
)