终端仅运行 2.7，即使更改别名后 [英] terminal only running 2.7, even after changing alias

问题描述

如何让终端运行像/manage.py 这样的脚本，它会使用 python3 而不是 python2?如果我输入python"，它会运行 python3，但这个命令运行 python2.

How can I get terminal to run a script like /manage.py where it will use python3 instead of python2? If I type 'python' it runs python3, but this command runs python2.

推荐答案

manage.py 的第一行应该是:

#!/usr/bin/env python3

这称为shebang，并根据$PATH 中第一个python 版本告诉您的shell 应使用哪个python 安装.

This is called the shebang and tells your shell which python installation should be used based on which version of python is first in $PATH.

如果第一行不是 #!/usr/bin/env python3，它应该是.如果是，您应该将的python3的位置添加到$PATH.

If the first line isn't #!/usr/bin/env python3, it should be. If it is, you should prepend the location of python3 to $PATH.

您需要将以下内容添加到您的 ~/.bashrc 中:

You'll want to do this by adding the following to your ~/.bashrc:

export PATH="`which python3`:$PATH"

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