您的文件/ usr / bin / python存在，因为您收到以下消息：

  ln：/ usr / bin / python：文件存在
 

但是我看到它是一个不存在的链接，因为您收到以下消息：

  -bash ：/ usr / bin / python：没有这样的文件或目录
 

是：

  sudo rm / usr / bin / python＃因为这是一个损坏的文件
 sudo ln -s / usr /bin/python2.7 / usr / bin / python＃如果你的文件/usr/bin/python2.7可以，这行将工作。 
 

希望有帮助！

I have researched this for hours to no avail.

I think I deleted my directory at /usr/bin/python when I installed python 3 because I get this error: -bash: /usr/bin/python: No such file or directory.

I've tried sudo ln -s /usr/bin/python2.7 /usr/bin/python, and that gives me ln: /usr/bin/python: File exists

However, it still doesn't permanently install a directory in /usr/bin/python. How do I permanently restore this directory?

I'm on a mac.

Thanks!

Your file /usr/bin/python exists because you get the message:

ln: /usr/bin/python: File exists

but I see that it is a corrupted link to something that doesn't exist, because you get the message:

-bash: /usr/bin/python: No such file or directory

What you have to do to fix that is:

sudo rm /usr/bin/python    # because that's a corrupted file
sudo ln -s /usr/bin/python2.7 /usr/bin/python    # this line will work if your file /usr/bin/python2.7 is OK.

Hope that helps!