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Django 4.0: implementing Custom Middleware Affecting Async Views

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django asyncio middleware Python

I'm working on a personal project and I'm experiencing unexpected behavior when using custom middleware in my Django 4.0 application that employs async views... The middleware is meant to log request details and modify the request object, but it seems to disrupt the async flow, leading to a `RuntimeError: This event loop is already running` behavior when accessing `async` views. Here’s a snippet of my middleware: ```python class CustomMiddleware: async def __call__(self, request, next): print(f'Request path: {request.path}') # Modifying request object request.custom_attr = 'value' response = await next(request) return response ``` I've tried ensuring that all middlewares are compatible with async, but the scenario continues. I also considered using `asgiref` to manage the event loop but still received the same behavior. My `settings.py` has the middleware listed as: ```python MIDDLEWARE = [ ..., 'myapp.middleware.CustomMiddleware', ..., ] ``` When I comment out the middleware, the async views function correctly, so I’m certain the middleware is the root cause. Any guidance on how to properly structure async middleware in Django would be greatly appreciated. I'm also curious if there's a better pattern for modifying the request object in async contexts. What am I doing wrong?