async_lru

info:	Simple lru cache for asyncio

Installation

pip install async_lru

Usage

This package is 100% port of Python built-in function functools.lru_cache for asyncio

import asyncio

import aiohttp
from async_lru import alru_cache


@alru_cache(maxsize=32)
async def get_pep(num):
    resource = 'http://www.python.org/dev/peps/pep-%04d/' % num
    async with aiohttp.ClientSession() as session:
        try:
            async with session.get(resource) as s:
                return await s.read()
        except aiohttp.ClientError:
            return 'Not Found'


async def main():
    for n in 8, 290, 308, 320, 8, 218, 320, 279, 289, 320, 9991:
        pep = await get_pep(n)
        print(n, len(pep))

    print(get_pep.cache_info())
    # CacheInfo(hits=3, misses=8, maxsize=32, currsize=8)

    # closing is optional, but highly recommended
    await get_pep.close()


loop = asyncio.get_event_loop()

loop.run_until_complete(main())

loop.close()

Python 3.3+ is required

Plus it supports keyword argument expires that expire the cached item after certain number of seconds.

Thanks

The library was donated by Ocean S.A.

Thanks to the company for contribution.