Shebang of euler2

[rodenhausen]

I want to suggest to changing shebang from #!/usr/bin/env python to #!/usr/bin/env python2

#!/usr/bin/env python2 makes explicit which version is required. Users with a setup of both python2 and python3 have a choice whether they want to link their python to python2 or python3

[rodenhausen]

Same issue in other executables such as y2d

[ludaesch]

I like the idea to make it explicit that we require Python2 rather than Python3. And it seems the change has been made, but now I get a new problem: python2 isn't found!

I tried to create a symlink, but that didn't work either. What's the right way to create an executable python2 command for euler2? See below for my unsuccessful attempts:

[EulerX :)]$ euler2
env: python2: No such file or directory
[EulerX :(]$ which python
/usr/bin/python
[EulerX :)]$ ln -s /usr/bin/python /usr/bin/python2
ln: /usr/bin/python2: Operation not permitted
[EulerX :(]$ sudo ln -s /usr/bin/python /usr/bin/python2
Password:
ln: /usr/bin/python2: Operation not permitted
[EulerX :(]$ python3
bash: python3: command not found
[EulerX :(]$ python2
bash: python2: command not found
[EulerX :(]$

[rodenhausen]

Instead of a link, try creating a bash script python2 that forwards to the python binary.

#!/bin/bash
exec /usr/bin/python "$@"