如何使用自制在MacOS中安装早期版本的python 3?

简短的回答

brew unlink python # ONLY if you have installed (with brew) another version of python 3
brew install --ignore-dependencies https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb

brew info python           # To see what you have previously installed
brew switch python 3.x.x_x # Ex. 3.6.5_1

冗长的回答

python@2 和 python

注: python3 蟒蛇

解决方案

brew

brew install https://the/address/to/the/formula/FORMULA_NAME.rb

或者专门针对python 3

brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/COMMIT_IDENTIFIER/Formula/python.rb

您可以通过查看homebrew core/formula/python.rb的历史记录来找到comnt标识符。

https://github.com/Homebrew/homebrew-core/commits/master/Formula/python.rb

在上面的链接中,您将找不到3.6.5以上版本的Python的公式。

如上所述,使用自制,您只有python 2(python@2)和python 3(python)。 .

brew unlink python # If you have installed (with brew) another version of python
brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb

你可能会遇到

Error: python contains a recursive dependency on itself:
  python depends on sphinx-doc
  sphinx-doc depends on python

--ignore-dependencies BREW安装的参数。

brew unlink python # If you have installed (with brew) another version of python
brew install --ignore-dependencies https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb

brew install python3
brew unlink python

然后我使用上面的链接安装了python 3.6.5

brew install --ignore-dependencies https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb --ignore-dependencies

brew link --overwrite python .现在我在系统中有了所有的蟒蛇来创建虚拟环境。

mian@tdowrick2~ $ python --version
Python 2.7.10
mian@tdowrick2~ $ python3.7 --version
Python 3.7.1
mian@tdowrick2~ $ python3.6 --version
Python 3.6.5

mian@tdowrick2~ $ virtualenv -p python3.7 env
Already using interpreter /Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7
Using base prefix '/Library/Frameworks/Python.framework/Versions/3.7'
New python executable in /Users/mian/env/bin/python3.7
Also creating executable in /Users/mian/env/bin/python
Installing setuptools, pip, wheel...
done.
mian@tdowrick2~ $ source env/bin/activate
(env) mian@tdowrick2~ $ python --version
Python 3.7.1
(env) mian@tdowrick2~ $ deactivate

mian@tdowrick2~ $ virtualenv -p python3.6 env
Running virtualenv with interpreter /usr/local/bin/python3.6
Using base prefix '/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6'
New python executable in /Users/mian/env/bin/python3.6
Not overwriting existing python script /Users/mian/env/bin/python (you must use /Users/mian/env/bin/python3.6)
Installing setuptools, pip, wheel...
done.
mian@tdowrick2~ $ source env/bin/activate
(env) mian@tdowrick2~ $ python --version
Python 3.6.5
(env) mian@tdowrick2~ $ 

我尝试了上面所有的答案来安装python 3.4.4。python的安装工作正常,但是pip不会被安装,我也无能为力。我使用的是mac osx mojave,这会导致zlib、openssl出现一些问题。

• 尽量避免在公式给出的早期版本中使用自制啤酒。 蟒蛇3
• 蟒蛇

1. MacOS 64位安装程序 以下内容: https://www.python.org/downloads/release/python-365/
2. ,例如,如果要下载 ,在上面的URL中替换 巨蟒-344
4. 如果你下载了 蟒蛇365 第365页

为了解决这个问题 homebrew homebrew-core 并设置 HOMEBREW_NO_AUTO_UPDATE

cd `brew --repo homebrew/core`
git checkout f2a764ef944b1080be64bd88dca9a1d80130c558
export HOMEBREW_NO_AUTO_UPDATE=1
brew install python

您还可以使用 brew extract

brew extract python tap_owner/tap_name --version=3.6.5