在 mac 上更改 python 路径？
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changing python path on mac?
提问by Tim
I would like to change PATH from Python 2.6.1 to 3.1.2. I have both versions installed on my computer but when I type python --version in the terminal I get Python 2.6.1 so thats the current version its "pointing" to. Now if I type Python3.1 it changes the current version to the one I want to use, though the PATH is still 2.6.1. Downloaded with the Python 3.1 package comes a Update Shell Profile.command, so when I run it and then run nano ~/.bash_profile it says there: Setting PATH for Python 3.1 the orginal version is saved in .bash_profile.pysave PATH="/Library/Frameworks/Python.framework/Versions/3.1/bin:${PATH}" export PATH.
我想将 PATH 从 Python 2.6.1 更改为 3.1.2。我的计算机上安装了这两个版本，但是当我在终端中键入 python --version 时，我得到了 Python 2.6.1，因此这是它“指向”的当前版本。现在，如果我输入 Python3.1，它会将当前版本更改为我想要使用的版本，尽管 PATH 仍然是 2.6.1。与 Python 3.1 包一起下载的是更新 Shell Profile.command，所以当我运行它然后运行 nano ~/.bash_profile 时，它说： Setting PATH for Python 3.1 the original version is saved in .bash_profile.pysave PATH="/ Library/Frameworks/Python.framework/Versions/3.1/bin:${PATH}" 导出路径。
Does this mean that I have changed the PATH or does it just give me instructions how to?!
这是否意味着我已经更改了 PATH 或者它只是给了我如何操作的说明？！
Regards
问候
采纳答案by leoluk
PATH="/Library/Frameworks/Python.framework/Versions/3.1/bin:${PATH}"
export PATH
This will append the Python directory to the path.
这会将 Python 目录附加到路径中。
If this is part of ~/.bash_profile, this will append the Python path on each startup.
如果这是 的一部分~/.bash_profile，这将在每次启动时附加 Python 路径。
回答by Vineesh TP
try the below lines
尝试以下几行
cd /usr/local/bin
cp python3.7 python
Then restart terminal
然后重启终端
回答by Jux Salley
i managed to fixed mine by removing python2, i don't if it's a good practice
我设法通过删除 python2 修复了我的问题，如果这是一个好习惯，我不会
回答by AliyuIbn
For those using a .zsh terminal instead of .bash, you might need to update your PATH using the command:
对于使用 .zsh 终端而不是 .bash 的用户，您可能需要使用以下命令更新 PATH：
nano .zsh
Then update your PATH with the export command.
然后使用 export 命令更新您的 PATH。
See the link below for more guide:
https://coolestguidesontheplanet.com/how-to-add-to-the-shell-path-in-macos-using-terminal/
有关更多指南，请参阅以下链接：https:
//coolestguidesontheplanet.com/how-to-add-to-the-shell-path-in-macos-using-terminal/
