Invalid extra name - python_version_2.7_

[yoavk]

In addition to this, there seem to be other extra names that don't match PEP. I tried installing uv pip install huaweicloudsdkcore==3.1.56, but got the following error

error: Failed to read metadata for: huaweicloudsdkcore==3.1.56
  Caused by: Failed to parse METADATA file at: huaweicloudsdkcore-3.1.56.dist-info/METADATA
  Caused by: Not a valid package or extra name: "python_version_2.7_". Names must start and end with a letter or digit and may only contain -, _, ., and alphanumeric characters.

I found this list from a few years ago that has a few more extra names that don't match PEP - it could be useful to support (or at least ignore) all these examples.

[chrisgoddard]

+1 for boto3

[charliermarsh]

I can look at this.