timeout not respected with socks5 proxy

[crinkytreadmill]

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I am also experiencing this issue. The timeout property has no effect on reads with SOCKS5 proxies, while the same functionality works as expected with HTTP proxies.

Discussed in https://github.com/encode/httpx/discussions/2951

^{Originally posted by a14n November 20, 2023} With httpx[socks]==0.23.3and the following code an httpx.ReadTimeout is raised only with https proxy and not with socks5 proxy. Is it an known issue?

async def main():
   async_client = httpx.AsyncClient(
#        proxies="https://my-https-proxy:443",
       proxies="socks5://my-socks5-proxy:3128",
       follow_redirects=True,
       timeout=1,
   )
   start = time.time_ns()
   try:
       response = await async_client.get(
           "http://www.protesa.net/",
           follow_redirects=False,
       )
       print("status", response.status_code)
   except Exception as e:
       print("ex", type(e))
 #      traceback.print_exc()
   finally:
       print(f"{time.time_ns() - start}ns")
   await async_client.aclose()

if __name__ == '__main__':
   asyncio.run(main())

The output for socks5 proxy is:

ex <class 'socksio.exceptions.ProtocolError'>
59288033291ns

The output for http proxy is:

ex <class 'httpx.ReadTimeout'>
1345715709ns
```</div>