I update the kernel, after that the Ubuntu doesn’t work well, PS: I try to exec “meld” command, it will report that “/usr/bin/env: python: No such file or directory”,
then I exec “sudo apt-get install python” and get the result “python is already the newest version.”, what should I do for it.
I’m not good at linux, can you tell me how to revert my linux to the last right status, or reinstall the python normally.
/usr/bin/env: ‘python’: No such file or directory
Possible Solution #1
- If Python 3 is not installed, install it:
apt-get install python3
Possible Solution #2
- If Python 3 has been installed, run these commands:
- Then we create a symlink to it:
sudo ln -s /usr/bin/python3 /usr/bin/python
Having been momentarily stumped by this error myself, I thought I’d post how I fixed my problem.
My problem was an error:
: No such file or directory
Which made little sense to me. My problem is that my editor had silently converted the script from Unix LF to Windows CR/LF line-termination. A rather unfortunate upshot of this is that “#!/usr/bin/env python” actually became “#!
/usr/bin/env python15” where 15 is the invisible CR character… /usr/bin/env was, then, unable to find a command “python15” – hence the file-not-found error.
Converting the script to Unix line-ending convention solved my problem… but only after a few minutes’ head-scratching.
On Ubuntu 20.04 and newer, there is a package to fix this problem. Run the following commands:
sudo apt update sudo apt install python-is-python3
@mchid’s answer is the one you should go for it.
if you do this:
it will say
Command 'python' not found ...
But if you do this:
$ python3, it should work.
So, just modify the shebang line
!#/usr/bin/env python3, you’re good to go.
(which is automatically done by doing
sudo apt install python-is-python3)