gmane.comp.lang.jython.user

How best to deal with a bunch of .jar files?

David Niergarth — 2008-12-03T17:31:36

Hello, I need some basic help understanding how best to manage Jython scripts that need access to lots of jar files (CLASSPATH, sys.path, registry). I'm using Debian Lenny with Jython 2.2.1 on java1.6.0_0 (installed as the standard packages). I'm using Jython to script Jasper Reports (an open-source Java reporting library), which has a lot of dependencies (it's /lib subdirectory contains 45 jar files). To get things working, I have added the full paths to all 45 jar files to my CLASSPATH environment variable (2,690 characters). It also works if I add the jar paths to the registry's python.path property and unset CLASSPATH (or jython -Dpython.path=/long/path1:/long/path2:..., although that's pretty unwieldy). My questions are: 1. Is there a less-verbose way to load so many jars? (Like a way to point to just the directory containing the jars?) 2. I had a lot of problems and confusion that went away once I started clearing out cachedir before running my scripts. For example, my CLASSPATH

re cursive submodule imports

pratibha chitipothu — 2008-12-03T12:54:48

I am facing a problem with recursive submodule imports. Here is my python script directory structure script: __init__.py A: __init__.py B: __init__.py content of the __init__.py in module B is def test(): print 'hahahaha' if i do this in jython 2.2 import script script.A.B.test() it is working fine and printing 'hahahaha'. But the same thing in 2.5 is giving this error. Traceback (most recent call last): File "", line 1, in AttributeError: 'module' object has no attribute 'A' if i add explicit imports for A and B then it is working fine... Can someone helps me to solve this??? How can i enable automatic submodule imports like what is happening in jython2.2 Thanks in advance, Pratibha.

Re: Global global variables

Greg Scott — 2008-12-02T21:06:14

Thank you, Does anyone have an idea of the equivalent in JS223, or any other suggestions? -----Original Message----- From: Jeff Emanuel [mailto:jemanuel< at >frii.com] Sent: 02 December 2008 18:52 To: Scott, Gregory Cc: Jython-users< at >lists.sourceforge.net Subject: Re: [Jython-users] Global global variables Python modules do not have access to the namespace of the where they are imported. Create a namespace in your interpreter, say __main__, and add sim to it. Then mypython and someother can import sim from __main__. I don't know how you would do this with JSR223, but here's how it would work for PythonInterpreter. _interp = new PythonInterpreter(); PyModule mod = imp.addModule("__main__"); _interp.setLocals(mod.__dict__); _interp.set("sim",new SomeJavaObject()); In your .py files: try: from __main__ import sim print sim except ImportError,oops: print oops Scott, Gregory wrote: supply it with a variable, called 'sim' accessing the variable. script has

Re: Global global variables

Jeff Emanuel — 2008-12-02T18:51:57

Python modules do not have access to the namespace of the where they are imported. Create a namespace in your interpreter, say __main__, and add sim to it. Then mypython and someother can import sim from __main__. I don't know how you would do this with JSR223, but here's how it would work for PythonInterpreter. _interp = new PythonInterpreter(); PyModule mod = imp.addModule("__main__"); _interp.setLocals(mod.__dict__); _interp.set("sim",new SomeJavaObject()); In your .py files: try: from __main__ import sim print sim except ImportError,oops: print oops Scott, Gregory wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Global global variables

Scott, Gregory — 2008-12-02T15:28:45

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Re: jythono code completion?

jlist — 2008-12-02T05:20:23

Yes, you are right. I just tried it today. It does support code completion, with limitations, though. When I tried: from java.lang import System System.out.println("Hello World") It was able to prompt after "System." but not after "System.out.". Not sure if it's a bug or something. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: jythono code completion?

Charlie Groves — 2008-12-02T05:05:45

I believe Pydev - http://pydev.sourceforge.net/ - adds code completion to Eclipse, though I haven't used it personally. Charlie ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

jythono code completion?

jlist — 2008-12-01T17:59:37

Eclipse code-completion works wonderfully for Java. I wonder if it supports code-completion of Java classes in Jython? Or, is there some other editors that support this? I have been using a Python editor for my Jython work and it knows nothing about the Java classes... ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: SciPy with Jython

Jim Baker — 2008-12-01T17:01:20

using telnetlib and its expect method in jython

ShamanMahmoudi — 2008-12-01T12:59:55

Hi, I am using the latest stable version of jython, version 2.2.1 and I am trying to write a simple telnet program. However, I am having an issue with the expect method in it. Here is my code: import telnetlib HOST = 'localhost' user = 'someone' password = 'someones password' tn = telnetlib.Telnet(HOST, 22) aa, bb, cc = tn.expect(['>>>'], 1) print aa print bb print cc And this is the error message: Traceback (innermost last): File "/home/qm/workspace/project000/telnettest.py", line 11, in ? File "/home/qm/jython/Lib/telnetlib.py", line 623, in expect File "/home/qm/jython/Lib/select.py", line 204, in cpython_compatible_select File "/home/qm/jython/Lib/select.py", line 54, in _getselectable TypeError: ("Object 'java.nio.channels.SocketChannel[connected local=/127.0.0.1:45293 remote=/127.0.0.1:22]' is not watchable", 88) What am I supposed to do? Keep in mind that it works fine in Cpython and also if I replace expect method with read_until method. But, expect is important for me because ther

SciPy with Jython

indian scorpio — 2008-12-01T09:11:40

Hi Has sciPy been ported to jython or is there a way to use Scipy in Java. If yes can anyone provide with a link of an example or anything for that... i.e demonstrating how to use it. Couldn't really find any... TIA ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Raymundo Baquirin has invited you to join Friendster

Raymundo Baquirin — 2008-12-01T02:23:19

Embed Jython into Eclipse Plugin - javaos not found

Paul Gibbons — 2008-11-30T21:35:47

Re: Syntax errors

josu — 2008-11-30T09:03:13

I have compiled your exact code (copy and paste) and it runs perfectly. Maybe, you have a problem in the classpath. josu On 08-aza-30, at 01:23, David Bush wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Syntax errors

Josh Juneau — 2008-11-30T02:45:39

Jeff- I agree...those were my same thoughts. Josh Juneau juneau001< at >gmail.com http://jj-blogger.blogspot.com http://www.gathereventplanning.com Twitter ID: javajuneau On Sat, Nov 29, 2008 at 8:22 PM, Jeff Emanuel frii.com> wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Syntax errors

Josh Juneau — 2008-11-30T02:37:45

Hi David- I will take a couple of guesses as to what is going wrong, but I cannot be sure because the code looks to be correct. My first suggestion is that in the first program you displayed, the last import statement is spanning two lines. This could be simply because of the way the email was formatted, but if not then it needs to be on a single line. Second, which version of the JDK are you using to compile this code? How are you attempting to compile, via IDE or command line? Hopefully your answers to the above questions can help us decide where the issue resides. Best Josh Juneau juneau001< at >gmail.com http://jj-blogger.blogspot.com http://www.gathereventplanning.com Twitter ID: javajuneau On Sat, Nov 29, 2008 at 6:23 PM, David Bush googlemail.com> wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Gra

Re: Syntax errors

Jeff Emanuel — 2008-11-30T02:22:27

It appears you are passing Java code to the Jython intepreter. Try javac instead. David Bush wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Syntax errors

David Bush — 2008-11-30T00:23:04

Jython Monthly - Issue #24 - November 28, 2008

Josh Juneau — 2008-11-29T03:11:09

============================================ Jython Monthly - Issue #24 - November 28, 2008 URL: http://wiki.python.org/jython/JythonMonthly/Newsletters/November2008 Please send articles and news to: juneau001< at >gmail.com ============================================ Please read the complete newsletter by visiting the URL above. Happy Thanksgiving to the community. Stay tuned for the new Jython Monthly podcast which should begin next month if all goes as planned. I will post details to the list. Sorry for the late distribution this month, the family and work have been keeping me busy! Best, Josh Juneau Summary of November 2008 Contents: News ==== Jython 2.5 b0 Released http://www.jython.org Netbeans 6.5 Released http://www.netbeans.org nbPython Releases EA http://download.netbeans.org/netbeans/6.5/python/ea/ Jythonroid http://code.google.com/p/jythonroid/ Articles ====== Comparison of Python Virtual Machines In this article I'm going to go through some details about what is going on under t

Re: string to method call

Chris McCormick — 2008-11-28T13:18:47

Even better (and a bit safer): getattr(classinstance, methodname)(*args, **kwargs) Best, Chris. On Fri, Nov 28, 2008 at 09:19:32AM -0200, claudef< at >br.ibm.com wrote: ------------------- http://mccormick.cx ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Serialization

aditsu — 2008-11-28T12:49:54

Charlie Groves wrote: Well, the code I posted was minimal, so I'd say creating a test case is expanding, not reducing, the code. Anyway, I turned it into a basic set of junit tests: import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; import org.junit.Test; import org.python.core.PyModule; import org.python.core.PyObject; import org.python.core.imp; import org.python.util.PythonInterpreter; import org.python.util.PythonObjectInputStream; public class SerializationTests { private PythonInterpreter interp; public void init() { interp = new PythonInterpreter(); } public void setupMain() { final PyModule mod = imp.addModule("__main__"); interp.setLocals(mod.__dict__); } public void createObject() { interp.exec("from java.lang import Object"); interp.exec("from java.io import Serializable"); interp.exec("class Test(Serializable):\n\tdef __init__(self):\n\t\tObject.__init__(self)\n"); interp.exec("x =