Unable to install with speedups in CPython 3.10.0-alpha-7 due to failures with pycares

[davfsa]

🐞 Describe the bug
When installing aiohttp with speedupds, it installs aiodns, which itself relies on pycares. These two libs are currently unmaintained as stated here: saghul/pycares#139. This will make installing aiohttp with speedups impossible in CPython 3.10.

💡 To Reproduce
Install CPython 3.10 and try to install aiohttp with speedups.

Examples:

• https://github.com/hikari-py/hikari/pull/516/checks?check_run_id=2305172086 (Linux)
• https://github.com/hikari-py/hikari/pull/516/checks?check_run_id=2305172150 (MacOS)
• https://github.com/hikari-py/hikari/pull/516/checks?check_run_id=2305172240 (Windows)

💡 Expected behavior
Installation with speedups succeeds. This might require looking for a different package or maintaining that package.

📋 Logs/tracebacks
Check links above

📋 Your version of the Python

$ python --version
Python 3.10.0a7

📋 Your version of the aiohttp/yarl/multidict distributions
Unable to install, but the version that we are trying to install is 3.7.4.post0

📋 Additional context
None

[webknjaz]

Well, that's unfortunate... As a workaround, you could install Brotli and cchardet directly w/o depending on the speedups extra. I don't know how much we can do about these deps. Maybe we could guide them towards setting up shared maintenance but I doubt anybody under @aio-libs has the capacity to step up.

[davfsa]

Well, that's unfortunate... As a workaround, you could install Brotli and cchardet directly w/o depending on the speedups extra. I don't know how much we can do about these deps. Maybe we could guide them towards setting up shared maintenance but I doubt anybody under @aio-libs has the capacity to step up.

In my project we install the dependencies separately to aiohttp if people choose to install the speedups, so we will most likely disable aiodns for Python 3.10 if nobody takes over. Thanks for the info tho. I hope someone can take over (I personally lack too much C knowledge for this task)

[Molkree]

@davfsa, try installing wheel first, then you should be able to install aiohttp[speedups] on Python 3.10.
See here.
And when I removed wheel here.

[davfsa]

@davfsa, try installing wheel first, then you should be able to install aiohttp[speedups] on Python 3.10.
See here.
And when I removed wheel here.

Yep, that seems to have fixed it 👍 TIL that -e flag will not install the requires specified in pyproject.toml. Thanks for pointing this out!

I think this issue should be fixed then, as you can just use wheels to install the package