lotus_eaters

A simple Python throttling lib relying on the token bucket algorithm - Redis Backend

The throttle library provides a robust and versatile throttling mechanism for Python.

It can be used in multiple environments, from a single thread to a distributed server cluster.

It supports Python versions 2.6 to 3.3.

In order to perform throttling tasks, simply use the :meth:~throttle.throttle function:

.. code-block:: python

import throttle

def some_fun(uid):
    if not throttle.check(key=uid, rate=30, size=10):
        raise ThrottleError()
    # Do the job

throttle uses the "token bucket" algorithm: for each key, a virtual bucket exists.

Whenever a new request gets in, the algorithm performs the following actions:

Test if adding the request's cost to the bucket would exceed its capacity; in that case, return False
Otherwise, add the request's cost to the bucket, and return True

Simultaneously, the bucket's current value is decremented at the chosen rate.

This allows for temporary bursts and average computations.

.. code-block:: sh

$ pip install lotus_eaters

From Github:

.. code-block:: sh

$ git clone git://github.com/mpetyx/lotus_eaters.git