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Makes it easy to respect rate limits.

Project Description

Ratelim is a simple Python library that limits the number of times a function can be called during a time interval. It is particularly useful when using online APIs, which commonly enforce rate limits.

Features

  • Works in Py2 and Py3.
  • Greedy and patient rate limiting.
  • Preserves function signature.

Installation

$ pip install ratelim

Usage

Say you want to call a function at most for n_calls during a n_seconds time interval.

# 10 times in 5 seconds
@ratelim.greedy(10, 5)
def hello():
    print("hello")

The greedy rate limiter calls does not delay any function call until it’s really necessary.

In some scenarios, for example when crawling data from an API, you want to maximize the number of calls you make and you want to avoid sending them in short sequence. To this aim, we can use the patient rate limiter. It distributes calls evenly between each other.

# 10 times in 5 seconds
# Gets called at most every 0.5 seconds
@ratelim.patient(10, 5)
def hello():
    print("hello")

LICENSE

MIT.

Release History

This version
History Node

0.1.6

History Node

0.1.5

History Node

0.1.4

History Node

0.1.3

History Node

0.1.2

History Node

0.1.1

History Node

0.1.0

History Node

0.1.0a0

Download Files

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Filename, Size & Hash SHA256 Hash Help File Type Python Version Upload Date
ratelim-0.1.6-py2.py3-none-any.whl
(4.0 kB) Copy SHA256 Hash SHA256
Wheel py2.py3 Feb 27, 2015
ratelim-0.1.6.tar.gz
(2.8 kB) Copy SHA256 Hash SHA256
Source None Feb 27, 2015

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