uvfiles

uvfiles is an asynchronous file I/O library built on top of libuv, with an API designed to feel close to aiofiles. Its goal is to provide libuv's cross-platform portability and, on Linux, leverage io_uring (when available) for truly asynchronous file access.

Installation

Install dependencies with uv in the project directory:

uv sync

Simple Example

uvfiles requires a uvloop event loop.

import asyncio
import uvloop
from uvfiles import async_open

asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())


async def main() -> None:
    async_file = await async_open("example.txt", "w")
    await async_file.write("hello uvfiles\n")
    await async_file.close()

    async_file = await async_open("example.txt", "r")
    content = await async_file.read()
    await async_file.close()

    print(content)


asyncio.run(main())

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