Removed files in wheel

[lambdalisue]

I noticed that the wheel file of asyncssh 2.1.0 on pypi contains the following removed directories/files.

So that users who installed asyncssh via wheel see quite confusing message when they accidentally tried to import asyncssh.crypto.pyca or whatever.

Python 3.7.6 (default, Dec 25 2019, 14:48:36)
[Clang 11.0.0 (clang-1100.0.33.8)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncssh.crypto.pyca
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/alisue/.anyenv/envs/pyenv/versions/3.7.6/lib/python3.7/site-packages/asyncssh/crypto/pyca/__init__.py", line 15, in <module>
    from . import cipher
  File "/Users/alisue/.anyenv/envs/pyenv/versions/3.7.6/lib/python3.7/site-packages/asyncssh/crypto/pyca/cipher.py", line 144, in <module>
    CipherFactory(_cipher, _mode))
TypeError: register_cipher() missing 1 required positional argument: 'block_size'
>>>

[lambdalisue]

Additionally, this cause issue for using pkgutil.walk_packages while the error is not ImportError so that the function propagate that error.

[ronf]

Huh! The files in those directories are incredibly outdated (and in fact were removed from the source tree years ago), and the associated packages are NOT listed in setup.py, so I'm surprised the wheel-generation is still picking them up.

It looks to me like the "build" directory (more specifically build/lib) is not being cleared out when a build is done, and these files are being picked up from there. I'll make sure to clear this out the next time I produce a wheel. Thanks for the heads-up!

[ronf]

Looking more closely, I see this also applies to other files in the asyncssh and crypto directories which were later renamed or removed. I'll make sure those are cleaned out as well in the next wheel.

[ronf]

This problem should now be corrected with the newly released AsyncSSH 2.2.0 wheel. Thanks for the report!