pip install audit_pretty error

```
pip install audit_pretty
/root/anaconda3/lib/python3.8/site-packages/secretstorage/dhcrypto.py:16: CryptographyDeprecationWarning: int_from_bytes is deprecated, use int.from_bytes instead
from cryptography.utils import int_from_bytes
/root/anaconda3/lib/python3.8/site-packages/secretstorage/util.py:25: CryptographyDeprecationWarning: int_from_bytes is deprecated, use int.from_bytes instead
from cryptography.utils import int_from_bytes
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement audit_pretty (from versions: none)
ERROR: No matching distribution found for audit_pretty
Note: you may need to restart the kernel to use updated packages.

In [15]: !/root/anaconda3/bin/python -V
Python 3.8.5

In [16]: pip -V
pip 20.2.4 from /root/anaconda3/lib/python3.8/site-packages/pip (python 3.8)
Note: you may need to restart the kernel to use updated packages.

```

首先在报告的 Anaconda 环境中使用 Python 3.8.5 和 pip 20.2.4 重现 `pip install audit_pretty`。检查软件包元数据和发行配置，以确定 pip 找不到匹配发行版的原因；当软件包可以在受支持的环境中通过 pip 安装时，即视为完成。

由索引模型根据 Issue 内容生成。