If you don't know what Jython is, it's a Java version of the programming language Python.
When I type "python" into the Terminal, it starts Python.
Yet when I type "jython" into the Terminal, I get the following response:
new-host-2:~ My1stMac$ jython
-bash: jython: command not found
new-host-2:~ My1stMac$
I have Jython 2.7 & Python 2.7 installed.
Why does python start but jython doesn't? How do I add jython to the PATH?
Mac mini, OS X El Capitan (10.11.5)
Hello?
Would someone please answer my questions?
Hello?
Would someone please answer my questions?
This is ordinarily a very responsive support community. If anyone here is using Jython, then you would have received a timely response by now.
Your recourse is to go back to the Jython Project, or a Goog search, and get help from those sources. Or, you could use the real Python.org Python that is installed by OS X. 😉
It would appear that where you installed Jython is not in your default search path, as is the System Python. Find where you installed Jython, and then using a real editor, append that full path to your PATH environment variable in your ~/homedir/.bashrc, or ~/homedir/.bash_login file. Take note of any other environment variable settings that are unique to Jython.Then source .bashrc or .bash_login to make that PATH change current.
Once you have done that, you should be able to enter Jython on the command-line and it will be found — providing all other Jython dependencies are met. Read further in the Jython docs about how to aim it at your Jython library.
Hello macnerd48,
Python 2.7 is already installed on OS X. You probably shouldn't install your own Python unless you have very specific requirements. Jython is a Java app. How did you install it? Java a requirement. How did you install Java and from where. Please be specific.
It would appear that where you installed Jython is not in your default search path, as is the System Python. Find where you installed Jython, and then using a real editor, append that full path to your PATH environment variable in your ~/homedir/.bashrc, or ~/homedir/.bash_login file. Take note of any other environment variable settings that are unique to Jython.Then source .bashrc or .bash_login to make that PATH change current.
HUH?
I downloaded a JAR file from jython.org & ran it & it installed jython.
I searched for .bashrc and .bash_login & Finder couldn't find either of them.
I avoid using the Terminal unless I have to. I have no idea what you are referring to. What's a "real editor"? What does "Then source .bashrc or .bash_login to make that PATH change current." mean?
Hello again macnerd48,
Running Java-based programming languages on a Mac is not a trivial task. Why do you want Jython anyway? It will take some time to learn all of this.
I want to learn Java but I don't like the verbosity of Java. Jython is a Java implementation of Python. Python isn't verbose like Java. I also want to try out other languages that run on the Java VM like kotlin.
Hello again macnerd48,
You are going to have to start with everything listed by VikingOSX. No one can tell you how. You have to learn it. You don't have to master Java, but you do need some experience. Start with installing the JDK and writing some simple programs. That will help you progress to something like Jython, Scala, or kotlin.
I've installed the JDK & Netbeans & Intellij.
It occurred to me that I really don't need to use the Terminal. Besides, if I want to learn Jython, all I need to do is type in "python" at the Terminal prompt because Jython is a Java implementation of Python. Netbeans supports Jython & Intellij supports kotlin. So, I can use the IDEs to learn Jython or kotlin.
If you had no intention of using/learning the command-line in the Terminal, why did you ask for help in determining its PATH configuration? Both Etresoft and I responded in that capacity.
Now stipulating that you will do all your development learning in those two IDE with Jython invalidates your original post question, and has wasted your time and ours.
Etresoft and I are always glad to help those that are not chasing their own tail.
You are correct. I wasted your time & I appologize.
Can't get Jython to run
