httpx.ConnectError is no message when I make async request.

[pixelcola]

I am testing an incorrect request url use async client, but I can`t get expected error.

httpx version is 0.24.0

async request code:

import asyncio
from typing import Any, Optional

from httpx import AsyncClient, Request, Response


async def send_request(method: str, url: str, **kwargs: Any) -> Optional[str]:
    request: Request = Request(method, url, **kwargs)

    async with AsyncClient() as client:
        response: Response = await client.send(request)
        return response.text


asyncio.run(send_request("get", "https://httpbinn.org/get"))

get traceback:

traceback

Traceback (most recent call last):
File "/usr/lib/python3.9/asyncio/selector_events.py", line 856, in _read_ready__data_received
    data = self._sock.recv(self.max_size)
ConnectionResetError: [Errno 104] Connection reset by peer

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_exceptions.py", line 10, in map_exceptions
    yield
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 78, in start_tls
    raise exc
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 69, in start_tls
    ssl_stream = await anyio.streams.tls.TLSStream.wrap(
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/anyio/streams/tls.py", line 122, in wrap
    await wrapper._call_sslobject_method(ssl_object.do_handshake)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/anyio/streams/tls.py", line 137, in _call_sslobject_method
    data = await self.transport_stream.receive()
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/anyio/_backends/_asyncio.py", line 1274, in receive
    raise self._protocol.exception
anyio.BrokenResourceError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 60, in map_httpcore_exceptions
    yield
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 353, in handle_async_request
    resp = await self._pool.handle_async_request(req)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_async/connection_pool.py", line 253, in handle_async_request
    raise exc
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_async/connection_pool.py", line 237, in handle_async_request
    response = await connection.handle_async_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_async/http_proxy.py", line 289, in handle_async_request
    stream = await stream.start_tls(**kwargs)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/asyncio.py", line 78, in start_tls
    raise exc
File "/usr/lib/python3.9/contextlib.py", line 135, in __exit__
    self.gen.throw(type, value, traceback)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
    raise to_exc(exc)
httpcore.ConnectError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/root/codespaces/PRSS/app/utils.py", line 16, in <module>
    asyncio.run(send_request("get", "https://httpbinn.org/get"))
File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
    return future.result()
File "/root/codespaces/PRSS/app/utils.py", line 12, in send_request
    response: Response = await client.send(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 1617, in send
    response = await self._send_handling_auth(
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 1645, in _send_handling_auth
    response = await self._send_handling_redirects(
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 1682, in _send_handling_redirects
    response = await self._send_single_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 1719, in _send_single_request
    response = await transport.handle_async_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 353, in handle_async_request
    resp = await self._pool.handle_async_request(req)
File "/usr/lib/python3.9/contextlib.py", line 135, in __exit__
    self.gen.throw(type, value, traceback)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 77, in map_httpcore_exceptions
    raise mapped_exc(message) from exc
httpx.ConnectError

I get httpx.ConnectError

non-async request code:

import asyncio
from typing import Any, Optional

from httpx import Client, Request, Response


def send_request(method: str, url: str, **kwargs: Any) -> Optional[str]:
    request: Request = Request(method, url, **kwargs)

    with Client() as client:
        response: Response = client.send(request)
        return response.text


asyncio.run(send_request("get", "https://httpbinn.org/get"))

get traceback:

traceback

Traceback (most recent call last):
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_exceptions.py", line 10, in map_exceptions
    yield
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/sync.py", line 62, in start_tls
    raise exc
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/sync.py", line 57, in start_tls
    sock = ssl_context.wrap_socket(
File "/usr/lib/python3.9/ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
File "/usr/lib/python3.9/ssl.py", line 1040, in _create
    self.do_handshake()
File "/usr/lib/python3.9/ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 60, in map_httpcore_exceptions
    yield
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 218, in handle_request
    resp = self._pool.handle_request(req)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_sync/connection_pool.py", line 253, in handle_request
    raise exc
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_sync/connection_pool.py", line 237, in handle_request
    response = connection.handle_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_sync/http_proxy.py", line 289, in handle_request
    stream = stream.start_tls(**kwargs)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/backends/sync.py", line 62, in start_tls
    raise exc
File "/usr/lib/python3.9/contextlib.py", line 135, in __exit__
    self.gen.throw(type, value, traceback)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpcore/_exceptions.py", line 14, in map_exceptions
    raise to_exc(exc)
httpcore.ConnectError: [Errno 104] Connection reset by peer

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/root/codespaces/PRSS/app/utils.py", line 15, in <module>
    asyncio.run(send_request("get", "https://httpbinn.org/get"))
File "/root/codespaces/PRSS/app/utils.py", line 11, in send_request
    response: Response = client.send(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 901, in send
    response = self._send_handling_auth(
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 929, in _send_handling_auth
    response = self._send_handling_redirects(
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 966, in _send_handling_redirects
    response = self._send_single_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_client.py", line 1002, in _send_single_request
    response = transport.handle_request(request)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 218, in handle_request
    resp = self._pool.handle_request(req)
File "/usr/lib/python3.9/contextlib.py", line 135, in __exit__
    self.gen.throw(type, value, traceback)
File "/root/.cache/pypoetry/virtualenvs/prss-pK7lCckW-py3.9/lib/python3.9/site-packages/httpx/_transports/default.py", line 77, in map_httpcore_exceptions
    raise mapped_exc(message) from exc
httpx.ConnectError: [Errno 104] Connection reset by peer

I get httpx.ConnectError: [Errno 104] Connection reset by peer

[lahwaacz]

This is already reported in #2681