有人能帮我理解为什么我不能安装 psutil 吗？我在 MacOS 上。我是一个菜鸟，所以请耐心等待，但任何帮助将不胜感激。这可能与我安装的默认 Python 安装 vs v3 有关吗？我是命令行的新手，对导致错误的原因以及如何修复它感到困惑......
这是我收到的错误消息...
kasey@MacBook-Pro ~ % pip3 install psutil
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Defaulting to user installation because normal site-packages is not writeable
Collecting psutil
Downloading psutil-5.7.0.tar.gz (449 …