我是异步新手。尝试创建一个异步装饰器来阻塞 I/O 代码。def singletonAsyncMaker(func): async def inner(obj, ): loop = asyncio.get_event_loop() tasks = (loop.run_in_executor(None, func, i) for i in obj) return await asyncio.gather(*tasks) def main(obj): return asyncio.run(inner(obj)) return main@singletonAsyncMakerdef sleeper(obj): sleep(2) return objx = sleeper([8, 5, 6, 6, 4645, 63, 4, 6, 1, 64, 614, 24, 65, ])print(x)这通常运行良好,并且在正常的非异步函数中也运行良好,但是当通过 Sanic 服务器的路由函数调用时,它会抛出此错误。Traceback (most recent call last): File "/app.py", line 99, in extractImageResponse result = perform_textract_bytestream(images) File "async_experiment.py", line 51, in main return asyncio.run(inner(obj)) File "env/lib/python3.8/asyncio/runners.py", line 33, in run raise RuntimeError(RuntimeError: asyncio.run() cannot be called from a running event loop@app.route("/v0/xxxxxxxxxxxxxxx", methods=['POST'])def function_name(request): ----------------- x = sleeper(list) ----------------- return jsonify(json_op)尝试将async添加到 sanicfunction_name定义并在调用之前等待sleeper(),但没有成功。我知道 sanic 可以与 asyncio 一起使用,这对此有帮助吗?有什么修复或解决方法吗?
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九州编程
TA贡献1785条经验 获得超4个赞
无需asyncio.run在 Sanic 内部调用。
@app.route("/v0/xxxxxxxxxxxxxxx", methods=['POST'])
async def function_name(request):
await call_to_some_coroutine()
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