how to export a path
 

Hi,

I am installing a package called python-ase. I want to put the directory $HOME/ase in my PYTHONPATH environment variable using the following commands:

but when I have I cannot see ase and ase/tools in the path. How could it be possible? (I do all these in /home)

Where are you running those export commands? The classic reason for your problem is putting the export commands in a script and executing it. Easiest solution is to put them in one of your shell's startup files. For bash, ~/.bashrc.

If the problem continues, please give more details of what you are doing.