Event loop lock detector for Python.

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Installation

pip install gadasyncblock

Usage

import contextlib

from fastapi import FastAPI

from gadasyncblock import AsyncBlock

detector = AsyncBlock(timeout=1)

@contextlib.asynccontextmanager
async def lifespan(_: FastAPI):
    await detector.start()
    yield
    await detector.shutdown()


app = FastAPI(lifespan=lifespan)

@app.post("/run")
async def run():
    time.sleep(2)
    return {"message": "Blocked"}