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sniffio: Sniff out which async library your code is running under

You’re writing a library. You’ve decided to be ambitious, and support multiple async I/O packages, like Trio, and asyncio, and … You’ve written a bunch of clever code to handle all the differences. But… how do you know which piece of clever code to run?

This is a tiny package whose only purpose is to let you detect which async library your code is running under.

This library is maintained by the Trio project, as a service to the async Python community as a whole.

Quickstart

from sniffio import current_async_library
import trio
import asyncio

async def print_library():
    library = current_async_library()
    print("This is:", library)

# Prints "This is trio"
trio.run(print_library)

# Prints "This is asyncio"
asyncio.run(print_library())

For more details, including how to add support to new async libraries, please peruse our fine manual.

Release files for sniffio 1.3.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for sniffio 1.3.0
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sniffio-1.3.0.tar.gz 17.1 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for sniffio 1.3.0
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sniffio-1.3.0-py3-none-any.whl Python 3 none any Details

Total release size: 27.3 kB

Release files / sniffio-1.3.0.tar.gz

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