rerate 0.0.2

Flexible, easy to use rate limiter

Rerate

Flexible rate limiter in Python, with (soon) multiple algorithms and backend stores.

Installing

pip install rerate

Usage

from rerate import limiter, RateLimitedException
from time import sleep

limit = Limiter(limit=2, period=1, store_option='REDIS', host='localhost', port=6379)

@limit
def example():
    sleep(0.3)
    print('hi')

for _ in range(100):
    try:
        example()
    except RateLimitedException as e:
        print('I got limited!')

Supported Storage Options

• Redis
• Local (dictionary)

Supported Algorithms

• Generic Cell Rate

Todo

• More backends, more algorithms
• Better exceptions
• Built in retry
• Async

Acknowledgments

A lot of the ideas/code is inspired by:

• https://engineering.ramp.com/rate-limiting-with-redis
• https://smarketshq.com/implementing-gcra-in-python-5df1f11aaa96
• https://github.com/tomasbasham/ratelimit