NotImplementedError on Windows when running Playwright in asyncio with Python 3.11

[adnanbaigkairos]

Code:

import asyncio
import `sys`
from fastapi import FastAPI

if sys.platform == 'win32':
    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())

from skyvern import Skyvern

app = FastAPI()
prompt = """Prompt here"""

@app.get("/analyze-website")
async def analyze_website():
    skyvern = Skyvern()
    response = await skyvern.run_task(prompt=prompt)
    return {"response": response}


if __name__ == "__main__":
    import uvicorn
    uvicorn.run("test:app", host="127.0.0.1", port=6776)

When trying to run a Playwright-based async task in our Skyvern project on Windows 10 with Python 3.11, the task fails with the following error:
File "asyncio\base_events.py", line 502, in _make_subprocess_transport
raise NotImplementedError

Environment:
OS: Windows 11
Python: 3.11
Playwright: Latest version installed via pip
Project: Skyvern running local using Gemini LLM (setup in .env)
Run Command: python test.py / uvicorn test:app

Expected Behavior:
Playwright should initialize the browser instance as expected without throwing an error.

Observed Behavior:
Fails with NotImplementedError during the async Playwright initialization.

Solution tried but NOT solved the issue:

import sys
import asyncio

if sys.platform == 'win32':
    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())

Please fixed this issue as soon as possible and provide the no error/issue solution