danfairs

import base64
import hashlib
import hmac
import simplejson as json

def base64_url_decode(inp):
    padding_factor = (4 - len(inp) % 4) % 4
    inp += "="*padding_factor 
    return base64.b64decode(unicode(inp).translate(dict(zip(map(ord, u'-_'), u'+/'))))

danfairs

"""
Utilities for working with bulk data and batches.
"""
import itertools


def batches(items, batch_size=500):
    """
    Given an iterable of items and a batch size, yield individual lists
    of items of maximum length `batch_size`.