[Python] ConnectionRefusedError: [WinError 1225] The remote computer refused the network...

I'm running this code in VS Code:

import asyncio

async def tcp_echo_client(message):
reader, writer = await asyncio.open_connection(
'127.0.0.1', 80)

print(f'Send: {message!r}')
writer.write(message.encode())
await writer.drain()

data = await reader.read(100)
print(f'Received: {data.decode()!r}')

print('Close the connection')
writer.close()
await writer.wait_closed()

asyncio.run(tcp_echo_client('Hello World!'))


It's exactly the same in Python's original docs, but I have no idea why I get that error.

In Spyder the error's a little different: RuntimeError: asyncio.run() cannot be called from a running event loop

I also tried different IPs and ports. When I tried another IP like Google's DNS, (8.8.8.8), I encountered this another weird error: OSError: [WinError 121] The semaphore timeout period has expired

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