import hashlib
from urllib.parse import  urlencode
from  django import template
from django.conf import settings

register=template.Library()


@register.filter
def gravatar(user):
    email=user.email.lower().encode('utf-8')
    default='mm'
    size=256
    url='https://www.gravatar.com/avatar/{md5}?{params}'.format(
        md5=hashlib.md5(email).hexdigest(),
        params=urlencode({'d':default,'s':str(size)})
    )
    return url
import hashlib
from urllib.parse import  urlencode
from  django import template
from django.conf import settings

register=template.Library()


@register.filter
def gravatar(user):
    email=user.email.lower().encode('utf-8')
    default='mm'
    size=256
    url='https://www.gravatar.com/avatar/{md5}?{params}'.format(
        md5=hashlib.md5(email).hexdigest(),
        params=urlencode({'d':default,'s':str(size)})
    )
    return url