在 MacOS 上安装和配置最新的 python 3.8 的问题

Question

I've been trying to install Python 3.8 on MacOS via homebrew but I ended up with many versions of Python.

$ which python3
$ /Library/Frameworks/Python.framework/Versions/3.6/bin/python3

$ cd /Library/Frameworks/Python.framework/Versions
$ ls
$ 3.6   3.8

How do I fix it so that I get 3.8 to be the default python version?

Answer 1

As far as I can tell, currently we are still working on moving to Python 3.8 (too many Homebrew formula dependencies and Jenkins CI often runs out of the disk space).

Here is mega issue tracker: Github python 3.8 migration issue .

For the time being, I would recommend to use pyenv , which I am using it to manage multiple python versions myself for development as well.

Here is what you need to do:

• brew install pyenv
• pyenv init
• eval "$(pyenv init -)" # be sure echo 'eval "$(pyenv init -)"' > ~/.bash_profile for the future shell sessions.
• pyenv install 3.8.0
• pyenv global 3.8.0

And then you are good to go.