From: Ian a. D. C. <to...@sb...> - 2002-09-14 15:49:14
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I'm a recovering Perl programmer and have been playing with Python = recently. I now am aware of the nice fit between Jython and Java and want to = operate in that environment. At home I'm on Win98 and have downloaded and set paths for J2SE1.4 and = proved it so by typing java -version at the DOS prompt. I've now downloaded JYTHON-21 and entered java jython-21 and received = the message... "Exception in thread main" java.lang.NoClassDfFoundError: jython-21" Now...how have I shot myself in the foot??? Ian. |
From: Tom W. <to...@ss...> - 2002-09-16 15:16:28
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Ian: When you say you 'downloaded' jython-21, what did you do? Normally, you install Jython after downloading the installer or a zip or gz file. The results of the install is a directory tree that contains, among other things, the jython.jar file, and some run scripts. In the case of Windows, the batch file 'jython' is often used to start Jython. If you use the installer, it will be created for you and contain the proper command line switches. You will also notice that the 'main' is actually called 'org.python.util.jython'. Anyway, the batch file would look something like this: ------------------------------ @echo off rem This file generated by Jython installer rem Created on XXX by tomw rem rem set JAVA_HOME=D:\jdk1.3\jre set ARGS= :loop if [%1] == [] goto end set ARGS=%ARGS% %1 shift goto loop :end "D:\jdk1.3\jre\bin\java.exe" "-Dpython.home=d:\jython-21" -classpath "d:\jython-21\jython.jar;%CLASSPATH%" org.python.util.jython %ARGS% ---------------------------------- Hope that helps. tom -- Tom Whittaker University of Wisconsin-Madison Space Science and Engineering Center Cooperative Institute for Meteorological Satellite Studies Telephone/VoiceMail: 608.262.2759 |
From: Derek E. <ma...@et...> - 2002-09-14 16:23:59
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Ian, http://www.jython.org/install.html details all the possible installation = problems and combinations. java -cp . jython-21=20 seemed to work for me on XP (still had to set up the path to the install = directory to run Jython and build self-contained JARs afterwards = though). cheers, Derek ----- Original Message -----=20 From: Ian and Diana Clark=20 To: jyt...@li...=20 Sent: Saturday, September 14, 2002 4:49 PM Subject: [Jython-users] Help needed for jythoneer tyro.. I'm a recovering Perl programmer and have been playing with Python = recently. I now am aware of the nice fit between Jython and Java and want to = operate in that environment. At home I'm on Win98 and have downloaded and set paths for J2SE1.4 and = proved it so by typing java -version at the DOS prompt. I've now downloaded JYTHON-21 and entered java jython-21 and received = the message... "Exception in thread main" java.lang.NoClassDfFoundError: jython-21" Now...how have I shot myself in the foot??? Ian. |
From: Syver E. <syv...@on...> - 2002-09-14 22:15:36
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"Ian and Diana Clark" <to...@sb...> writes: > =A0 >=20 > I've now downloaded JYTHON-21 and entered java jython-21 and received > the >=20 > message... >=20 > =A0 >=20 > "Exception in thread main" java.lang.NoClassDfFoundError: jython-21" >=20 > =A0 >=20 > Now...how have I shot myself in the foot??? >=20 Just write jython at the prompt. (Have the jython-21 directory in the path) Checkout jython.bat in the jython directory to see how it's done (It calls java in the .bat file, with various parameters classpaths and so on) --=20 Vennlig hilsen=20 Syver Enstad |
From: Syver E. <syv...@on...> - 2002-09-16 08:57:28
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Syver Enstad <syv...@on...> writes: > "Ian and Diana Clark" <to...@sb...> writes: >=20 > > =A0 > >=20 > > I've now downloaded JYTHON-21 and entered java jython-21 and > received >=20 > > the > >=20 > > message... > >=20 > > =A0 > >=20 > > "Exception in thread main" java.lang.NoClassDfFoundError: jython-21" >=20 > >=20 > > =A0 > >=20 > > Now...how have I shot myself in the foot??? > >=20 Sorry, I thought you had already installed, bad advice --=20 Vennlig hilsen=20 Syver Enstad |