Asynchronous code using proxy error

[JoeanAmier]

This synchronization code can be executed normally.

import httpx
import asyncio


async def main():
    with httpx.Client(
            verify=False,
            mounts={
                "http://": httpx.HTTPTransport(proxy=None),
                "https://": httpx.HTTPTransport(proxy=None),
            }, ) as client:
        response = client.get("https://www.baidu.com")
        print(response.status_code)


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

But after changing to asynchronous code, an error will be reported.

import httpx
import asyncio


async def main():
    async with httpx.AsyncClient(
            verify=False,
            mounts={
                "http://": httpx.HTTPTransport(proxy=None),
                "https://": httpx.HTTPTransport(proxy=None),
            }, ) as client:
        response = await client.get("https://www.baidu.com")
        print(response.status_code)


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

The error message is as follows:

Traceback (most recent call last):
  File "C:\Users\youyq\AppData\Roaming\JetBrains\PyCharm2024.3\scratches\scratch_1.py", line 17, in <module>
    asyncio.run(main())
  File "C:\Program Files\Python312\Lib\asyncio\runners.py", line 194, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "C:\Program Files\Python312\Lib\asyncio\runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\Python312\Lib\asyncio\base_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "C:\Users\youyq\AppData\Roaming\JetBrains\PyCharm2024.3\scratches\scratch_1.py", line 6, in main
    async with httpx.AsyncClient(
               ^^^^^^^^^^^^^^^^^^
  File "C:\Users\youyq\PycharmProjects\general_venv\Lib\site-packages\httpx\_client.py", line 2007, in __aenter__
    await proxy.__aenter__()
          ^^^^^^^^^^^^^^^^
AttributeError: 'HTTPTransport' object has no attribute '__aenter__'. Did you mean: '__enter__'?

If I remove the proxy settings for asynchronous code, the code can run normally. It seems that the error is caused by the proxy and not by the proxy itself.

[karpetrosyan]

You changed your sync classes to async but forgot about transports. They also have an asynchronous alternative. HTTPTransport becomes AsyncHTTPTransport.