Proper way to install latest jython2.7.0 in oSUSE Leap 42.1

DanglingPointer · September 1, 2016, 7:12am

I would like to install Jython2.7.0 and am struggling a bit and am hoping someone here can give me a hand especially if they have already gone through the motions…

Whenever I run the installer It successfully completes but then I am unable to run the REPL to validate the install. If I use sudo however it works but throws warnings.

I’m new to oSUSE and am currently using Leap 42.1. Thanks in advance. underneath are the errors and warnings I encountered…

RUNNING UNPRIVILEGED:


:/opt/Jython> jython2.7.0/bin/jython 
Exception in thread "main" java.lang.NoSuchMethodError: method java.lang.Character.isSurrogate with signature (C)Z was not found.
   at org.python.core.PyUnicode.getSupplementaryCounts(PyUnicode.java:348)
   at org.python.core.PyUnicode.chooseIndexTranslator(PyUnicode.java:518)
   at org.python.core.PyUnicode.<init>(PyUnicode.java:122)
   at org.python.core.PyUnicode.<init>(PyUnicode.java:49)
   at org.python.core.Py.<clinit>(Py.java:117)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at org.python.core.PyType.init(PyType.java:544)
   at org.python.core.PyType.createType(PyType.java:1412)
   at org.python.core.PyType.addFromClass(PyType.java:1348)
   at org.python.core.PyType.fromClass(PyType.java:1439)
   at org.python.core.PyType.fromClass(PyType.java:1423)
   at org.python.core.PyStringMap.getLazyType(PyStringMap.java:66)
   at org.python.core.PyStringMap.<init>(PyStringMap.java:46)
   at org.python.core.PyStringMap.<init>(PyStringMap.java:42)
   at org.python.expose.BaseTypeBuilder.getDict(BaseTypeBuilder.java:48)
   at org.python.core.PyType.init(PyType.java:532)
   at org.python.core.PyType.addBuilder(PyType.java:1338)
   at org.python.core.PyType.<clinit>(PyType.java:35)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at org.python.core.PyObject.<init>(PyObject.java:93)
   at org.python.core.PyBuiltinCallable.<init>(PyBuiltinCallable.java:22)
   at org.python.core.PyBuiltinMethod.<init>(PyBuiltinMethod.java:16)
   at org.python.core.PyBuiltinMethodNarrow.<init>(PyBuiltinMethodNarrow.java:23)
   at org.python.core.PyDataDescr$getset_descriptor___get___exposer.<init>(Unknown Source)
   at org.python.core.PyDataDescr$PyExposer.<init>(Unknown Source)
   at org.python.core.PyDataDescr.<clinit>(PyDataDescr.java)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at org.python.core.PyBuiltinCallable$PyExposer.<init>(Unknown Source)
   at org.python.core.PyBuiltinCallable.<clinit>(PyBuiltinCallable.java)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at org.python.core.PyObject$PyExposer.<init>(Unknown Source)
   at org.python.core.PyObject.<clinit>(PyObject.java:28)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at java.lang.Class.initializeClass(libgcj.so.14)
   at org.python.util.jython.run(jython.java:241)
   at org.python.util.jython.main(jython.java:142)

RUNNING WITH SUDO:


:/opt/Jython/jython2.7.0> sudo bin/jython
[INFO] Unable to bind key for unsupported operation: backward-delete-word
[INFO] Unable to bind key for unsupported operation: backward-delete-word
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
[INFO] Unable to bind key for unsupported operation: up-history
[INFO] Unable to bind key for unsupported operation: down-history
Jython 2.7.0 (default:9987c746f838, Apr 29 2015, 02:25:11) 
[OpenJDK 64-Bit Server VM (Oracle Corporation)] on java1.8.0_101
Type "help", "copyright", "credits" or "license" for more information.
>>> print ('hello world')
hello world
>>> exit()

I_A · September 1, 2016, 7:53am

where and how did you get 2.7.0
opensuse only has 2.2.1 (even TW)
https://software.opensuse.org/package/jython
it looks like a missing java library, installing 2.2.1 with zypper should pull all needed libraries
install and see if 2.2.1 is working, and then try 2.7.0

zypper in jython

how did you install it, how are you running it?

edit
it seams juthon comes as a standalone jar file
what version of java do you have installed?

zypper info java

installing the old rpm and using the jar file is a possible fix

DanglingPointer · September 1, 2016, 9:31am

I_A:

where and how did you get 2.7.0
opensuse only has 2.2.1 (even TW)
https://software.opensuse.org/package/jython
it looks like a missing java library, installing 2.2.1 with zypper should pull all needed libraries
install and see if 2.2.1 is working, and then try 2.7.0
zypper in jython
how did you install it, how are you running it?

edit
it seams juthon comes as a standalone jar file
what version of java do you have installed?
zypper info java
installing the old rpm and using the jar file is a possible fix

I initially tried the official Jython in the repos but it is ancient as you have discovered!
The current jython2 is virtually at parity with the python2 vanilla interpreter. So I removed it and went straight to http://www.jython.org/downloads.html and downloaded both installers.
The standalone jar works but it isn’t really what I want. I would like an installed version which I can then link to a global path.

Waiting for oSUSE to officially update the repos may be a pipe-dream unless the Jython crew spits out a Jython 3.5 interpreter sometime in the future.

As for a missing library, I doubt it as it works when I run it with ‘sudo’. Just that I receive those warnings in my original post. Also the standalone jar works perfectly, problem is it is cumbersome to work with and don’t know how to use pip with it.

tsu2 · September 2, 2016, 7:31pm

I don’t know if you might want to wait until jython 2.7 is better documented…

There isn’t any dependency listing anywhere I’ve found on the jython site or documentation for any version of jython.
The current jython documentation is only 2.5 (which may work, but YMMV)
Note that as of today jython2.5.4rc1 is still a “current, stable and supported” version. That likely means that it’s the best recommended version to use and 2.7 is only the first (and likely buggy) version of a completely different codebase.

I can only suggest that <maybe> adding an openSUSE python repo might help, but I can’t even suggest a Python 2 or Python 3 repo… but the following will install the Python 2 repo for LEAP 42.1

zypper -n ar -f http://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_Leap_42.1/ python:_LEAP_42.1

It doesn’t look difficult to build your own Jython, the following pulls source directly from the current latest
http://www.jython.org/devguide/

In any case, IMO the warnings you’re getting when running in sudo are likely less significant and shouldn’t prevent executing most scripts. And, I don’t really have too much of an opinion about trying to run in unprivileged mode except that I wouldn’t configure lower level code execution to run without elevated permissions which might be the thought of the jython authors… but I’m guessing about some unknown person(s) thoughts…

TSU

I_A · September 2, 2016, 11:05pm

according to this
https://wiki.python.org/jython/InstallationInstructions
jython 2.7 comes as a jar file which is both an installer and a standalone interpreter it does not use or need python libraries
try running

$ java -jar jython_installer-2.7.0.jar --help

do not run the installer as root as it’s not an rpm installer it might mess up your system

DanglingPointer · September 3, 2016, 3:14am

tsu2:

I don’t know if you might want to wait until jython 2.7 is better documented…

There isn’t any dependency listing anywhere I’ve found on the jython site or documentation for any version of jython.

The current jython documentation is only 2.5 (which may work, but YMMV)

Note that as of today jython2.5.4rc1 is still a “current, stable and supported” version. That likely means that it’s the best recommended version to use and 2.7 is only the first (and likely buggy) version of a completely different codebase.

I can only suggest that <maybe> adding an openSUSE python repo might help, but I can’t even suggest a Python 2 or Python 3 repo… but the following will install the Python 2 repo for LEAP 42.1
zypper -n ar -f http://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_Leap_42.1/ python:_LEAP_42.1
It doesn’t look difficult to build your own Jython, the following pulls source directly from the current latest
http://www.jython.org/devguide/

In any case, IMO the warnings you’re getting when running in sudo are likely less significant and shouldn’t prevent executing most scripts. And, I don’t really have too much of an opinion about trying to run in unprivileged mode except that I wouldn’t configure lower level code execution to run without elevated permissions which might be the thought of the jython authors… but I’m guessing about some unknown person(s) thoughts…

TSU

Thanks for that!
Looks like I’ll just have to wait till it makes it to oSUSE repos. Unfortunate really as oSUSE is probably my favourite distro. But I have to work on the latest Jython release.
On a side note though, I’ve had no problem installing it on Ubuntu. While Fedora 24 has Jython 2.7.1b3 in their rpm repos and is the default Jython.

Cheers… DanglingPointer

I_A · September 3, 2016, 7:52am

you can ping one of the maintainers to update the build
https://build.opensuse.org/package/users/openSUSE:Leap:42.1/jython

DanglingPointer · September 4, 2016, 3:45am

I sent all of them an email. Hopefully they accept the request.

dimstar · September 5, 2016, 9:27am

Those are the maintainers of the distribution, not of the jython package - so they won’t be able to help you. The correct approach in any case is to file a bug report and not to send emails to people for such a case.

A bug report can then be moved to the appropriate people responsible for the package.