我尝试使用$ brew upgrade python
将“Python 3.7.3”升级到“Python 3.8”。但是当我尝试时,brew返回以下内容:
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> Updated Formulae
Updated 2 formulae.
Error: python not installed
我知道Python已经安装好了,因为我已经用了几个月了。运行which python3
可以确认这一点。
/usr/bin/python3
同时运行python3 --version
Python 3.7.3
我不知道是什么导致了这个问题?
问题可能是由于 python --version
仍然指向 Python2, 版本是 Python 2.7.16
.
更新
我还确认运行了brew cleanup
和 brew doctor
.
brew info python
返回
python@3.8: stable 3.8.5 (bottled)
Interpreted, interactive, object-oriented programming language
https://www.python.org/
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/python@3.8.rb
License: Python-2.0
==> Dependencies
Build: pkg-config ✔
Required: gdbm ✔, openssl@1.1 ✔, readline ✔, sqlite ✔, xz ✔
==> Caveats
Python has been installed as
/usr/local/bin/python3
Unversioned symlinks `python`, `python-config`, `pip` etc. pointing to
`python3`, `python3-config`, `pip3` etc., respectively, have been installed into
/usr/local/opt/python@3.8/libexec/bin
You can install Python packages with
pip3 install <package>
They will install into the site-package directory
/usr/local/lib/python3.8/site-packages
See: https://docs.brew.sh/Homebrew-and-Python
==> Analytics
install: 587,815 (30 days), 1,615,984 (90 days), 2,710,078 (365 days)
install-on-request: 187,760 (30 days), 307,168 (90 days), 343,355 (365 days)
build-error: 0 (30 days)
brew info python
返回的内容。说实话,这超出了我的理解范围。 - tim_xyz