Throttling with cache

cache_count.py

def inc_and_get_request_count(token):
    """Increment the request count for `token` and return the new count.
    
    """
    cache_key = COUNT_CACH_TEMPLATE.format(token)
    try:
        count = cache.incr(cache_key)
    except ValueError:
        # key doesn't exist in cache. insert it, start it at 1
        count = 1
        # cache for an hour. this will enforce our count/hour
        cache.set(cache_key, count, 3600)
    return count