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  1. I downloaded jython_installer-2.5.2.jar from jython.org.
  2. Opened the terminal and gave this command:-

java -jar jython_installer-2.5.2.jar

  1. It was installed in a folder named jython2.5.2 in the home directory
  2. But whenever I open the terminal and give the command jython in the terminal I am shown a message saying Jython is not installed.

How can I fix this problem?

I can install Jython using sudo apt-get install jython, but the Jython in Ubuntu repositories is 2.2.1 and I want the new version..

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1
  • Please read the description of tags before applying them. The tags "linux" and "shell" were wrong. I think that at least the "linux" description changed since the writing of the question though, so maybe that was not your fault. Commented Jul 29, 2018 at 7:43

3 Answers 3

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33

To install Jython with super user privileges:

sudo java -jar jython_installer-2.5.2.jar

Select /usr/local/lib/jython, then create a symbol link of Jython to /usr/local/bin:

sudo ln -s /usr/local/lib/jython/bin/jython /usr/local/bin/jython
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4 Comments

yeah!I read your blog on that and fixed it.. thanks a tonne !
When I run jython from the bin folder it doesn't start up. Do I need to change the permissions? Or do I have to always run ./jython
I am using ubuntu 15.04 and I can install jython directly by sudo apt-get install jython
I have the same problem as the poster and Sun Ning's solution didn't help. Despite running sudo java -jar ... my /usr/local/lib does not contain jython
14

When you type in jython, the shell looks for a program with that name in the PATH. You should either call the program with its full path:

# ~ is an abbreviation for your homedir
~/jython2.5.2/bin/jython

or add the directory with the executable to your PATH:

PATH=$HOME/jython2.5.2/bin:$PATH

If you want the latter to persist across terminal sessions, add it to your ~/.bashrc.

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1 Comment

This should be the accepted answer, because it explains why it is not working.
2

If you have ubuntu 19.04, you can install with apt

sudo apt install jython
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1 Comment

Works on 18.04.3 also!

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