看起来加密包（截至今天）现在需要添加setuptools-rust，它依赖于Rust和一堆新的系统库来复制所有原始的加密调用。这是一个主要的痛苦，而且pip对新DEPS的列表没有太大帮助！
嗯。
下面是我为了让ansible安装在新系统上而不得不构建的所有新垃圾的完整列表。这是从我的bash历史中衍生出来的，当时我通过安装尝试，检查错误，手动添加更多的包，泡沫冲洗重复了一个多小时。

$ apt-get install zlib1g-dev libbz2-dev liblzma-dev libjpeg62 libjpeg62-dev 
$ python3 -m venv ansible
$ python3 -m pip install --upgrade pip
$ python3 -m pip install pillow
$ python3 -m pip install rust
$ python3 -m pip install setuptools-rust
$ python3 -m pip install ansible

This is just what I had to add to what had been a functional ansible venv running again. Oh, and there was some apt-get install python3.8 and some update-alternatives crap going on, too.  That one python library is causing major headaches for ubuntu 18.04 LTS.