vscode 找不到python解释器,VS Code找不到python 3解释器

I am installing Python 3.7.2 for the first time, and I'm using the VS Code python extension.

When I run python -V I get Python 2.7.10 which is not correct!

When I select the usr/local/bin/python3 interpreter in VS Code I get this error when running a script:

bash: /Users/erik/Work/Python/usr/local/bin/python3: No such file or directory

But when I look in usr/local/bin I can see that Python3 is there. I'm not sure why VS Code pastes the work directory in front of usr/local/bin ?

My first thought was that Python3 should be in the PATH variable so I ran the included Update Shell Profile command, which gives this feedback:

This script will update your shell profile when

the 'bin' directory of python is not early enough

of the PATH of your shell.

All right, you're a python lover already

Now, after rebooting VS Code I get a new option for selecting an interpreter:

/Library/Frameworks/Python.framework/Versions/3.7/bin/python3

Is that different from the Python in usr/local/bin ? When I select it, I get this error:

The script isort is installed in '/Users/erik/Library/Python/3.7/bin' which is not on PATH.

I also get this sideways related error:

You are using pip version 18.1. You should consider upgrading via the 'pip install --upgrade pip' command.

But, when following these instructions I get yet another error:

bash: pip: command not found

All in all, this process and the official documentation seem less than user-friendly? Apparently I'm required to dig deep through my mac's system files in the terminal before even writing one line of code.

Am I missing an essential step here?

解决方案

Well, if you want to change your default Python version for the whole system, it might break some applications that are depending on Python 2.

You can alias the commands by adding this line to your ~/.bash_profile:

$ alias python='python3'

The python command will now refer to python3.

If you want to execute the original Python (which refers to python2), you can escape the alias (so \python will launch python2 without touching the alias).

Btw.

$ unlink /usr/local/bin/python

$ ln -s /usr/local/bin/python3.7 /usr/local/bin/python

could also be a workaround for you.