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From: Phil S. <psu...@es...> - 2001-10-18 14:37:07
|
From the jnios readme:
"This is a early release of the software, so don't be surprised if you
find an error. jnios.cpp have at one time been compile on linux and
solaris, but it have only tested in Windows. "
Others who posted to this list recently have confirmed that it does
not at present work on linux.
I hope you can get it working, it's a great package.
-----Original Message-----
From: Shari Arman [mailto:sh...@no...]
Sent: Thursday, October 18, 2001 6:58 AM
To: Jython
Subject: [Jython-users] Running a python script from java - help!
This is probably a really soppy question but I'm very very very stuck...
I'm trying to run a python script from a java GUI. I have had to use
jnios-1.7 to fix a problem I had with os.py, but now I'm getting:
java.lang.UnsatisfiedLinkError: java.lang.UnsatisfiedLinkError: no posix in
java.library.path
I tried to compile jnios-1.7/*.cpp, but it is looking for io.h, does io.h
even exist on UNIX??
config.h:35: io.h: No such file or directory
Is there a precompiled unix version of posix.so that I can download??
I'm going round in circles here, ANY tips welcome!!!
Chars!
Shari
Compiling jnios-1.7/*.cpp
sharona@zmdhm011:/u_area/9/sharona/jython/jnios-1.7 > gcc -c -I/usr/include
-I/opt/jdk/include -I /opt/jdk/include/linux -I. posix.cpp
In file included from posixmodule.h:49,
from posix.cpp:19:
config.h:35: io.h: No such file or directory
In file included from posix.cpp:19:
posixmodule.h:200: sys/utime.h: No such file or directory
sharona@zmdhm011:/u_area/9/sharona/jython/jnios-1.7 >
Calling a python script from a java file
sharona@zmd:/u_area/9/sharona/jython > java -cp
"jnios-1.7/jnios.jar:jython.jar:." PrepareTest1
{python.path=//home//sharona//Lib;//home//sharona//jnios-1.7}
pInt.get : null
pInt.get : null
Traceback (innermost last):
File ".//Prepare.py", line 11, in ?
File "/u_area/9/sharona/jython
/./Lib/tempfile.py", line 76, in ?
java.lang.UnsatisfiedLinkError: no posix in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1291)
at java.lang.Runtime.loadLibrary0(Runtime.java:473)
at java.lang.System.loadLibrary(System.java:777)
at jnios.posix.<clinit>(posix.java:723)
at jnios.os.initModule(os.java:27)
at org.python.core.PyJavaClass.initialize(PyJavaClass.java)
at org.python.core.PyJavaClass.lookupGivingClass(PyJavaClass.java)
at org.python.core.PyClass.lookup(PyClass.java)
at org.python.core.PyJavaClass.__findattr__(PyJavaClass.java)
at org.python.core.PyObject.__getattr__(PyObject.java)
at tempfile$py.f$0(tempfile.py:76)
at tempfile$py.call_function(tempfile.py)
at org.python.core.PyTableCode.call(PyTableCode.java)
at org.python.core.PyCode.call(PyCode.java)
at org.python.core.imp.createFromCode(imp.java)
at org.python.core.imp.createFromPyClass(imp.java)
at org.python.core.imp.loadFromPath(imp.java)
at org.python.core.imp.loadFromPath(imp.java)
at org.python.core.imp.load(imp.java)
at org.python.core.imp.import_next(imp.java)
at org.python.core.imp.import_name(imp.java)
at org.python.core.imp.importName(imp.java)
at org.python.core.ImportFunction.load(__builtin__.java)
at org.python.core.ImportFunction.__call__(__builtin__.java)
at org.python.core.PyObject.__call__(PyObject.java)
at org.python.core.__builtin__.__import__(__builtin__.java)
at org.python.core.imp.importOne(imp.java)
at org.python.pycode._pyx0.f$0(Prepare.py:11)
at org.python.pycode._pyx0.call_function(Prepare.py)
at org.python.core.PyTableCode.call(PyTableCode.java)
at org.python.core.PyCode.call(PyCode.java)
at org.python.core.Py.runCode(Py.java)
at org.python.core.__builtin__.execfile_flags(__builtin__.java)
at
org.python.util.PythonInterpreter.execfile(PythonInterpreter.java)
at PrepareTest1.<init>(PrepareTest1.java:21)
at PrepareTest1.main(PrepareTest1.java:32)
java.lang.UnsatisfiedLinkError: java.lang.UnsatisfiedLinkError: no posix in
java.library.path
|
|
From: Shari A. <sh...@no...> - 2001-10-18 12:01:16
|
This is probably a really soppy question but I'm very very very stuck...
I'm trying to run a python script from a java GUI. I have had to use
jnios-1.7 to fix a problem I had with os.py, but now I'm getting:
java.lang.UnsatisfiedLinkError: java.lang.UnsatisfiedLinkError: no
posix in java.library.path
I tried to compile jnios-1.7/*.cpp, but it is looking for io.h, does io.h
even exist on UNIX??
config.h:35: io.h: No such file or directory
Is there a precompiled unix version of posix.so that I can download??
I'm going round in circles here, ANY tips welcome!!!
Chars!
Shari
Compiling jnios-1.7/*.cpp
sharona@zmdhm011:/u_area/9/sharona/jython/jnios-1.7 > gcc -c -I/usr/include
-I/opt/jdk/include -I /opt/jdk/include/linux -I. posix.cpp
In file included from posixmodule.h:49,
from posix.cpp:19:
config.h:35: io.h: No such file or directory
In file included from posix.cpp:19:
posixmodule.h:200: sys/utime.h: No such file or directory
sharona@zmdhm011:/u_area/9/sharona/jython/jnios-1.7 >
Calling a python script from a java file
sharona@zmd:/u_area/9/sharona/jython > java -cp
"jnios-1.7/jnios.jar:jython.jar:." PrepareTest1
{python.path=//home//sharona//Lib;//home//sharona//jnios-1.7}
pInt.get : null
pInt.get : null
Traceback (innermost last):
File ".//Prepare.py", line 11, in ?
File "/u_area/9/sharona/jython
/./Lib/tempfile.py", line 76, in ?
java.lang.UnsatisfiedLinkError: no posix in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1291)
at java.lang.Runtime.loadLibrary0(Runtime.java:473)
at java.lang.System.loadLibrary(System.java:777)
at jnios.posix.<clinit>(posix.java:723)
at jnios.os.initModule(os.java:27)
at org.python.core.PyJavaClass.initialize(PyJavaClass.java)
at org.python.core.PyJavaClass.lookupGivingClass(PyJavaClass.java)
at org.python.core.PyClass.lookup(PyClass.java)
at org.python.core.PyJavaClass.__findattr__(PyJavaClass.java)
at org.python.core.PyObject.__getattr__(PyObject.java)
at tempfile$py.f$0(tempfile.py:76)
at tempfile$py.call_function(tempfile.py)
at org.python.core.PyTableCode.call(PyTableCode.java)
at org.python.core.PyCode.call(PyCode.java)
at org.python.core.imp.createFromCode(imp.java)
at org.python.core.imp.createFromPyClass(imp.java)
at org.python.core.imp.loadFromPath(imp.java)
at org.python.core.imp.loadFromPath(imp.java)
at org.python.core.imp.load(imp.java)
at org.python.core.imp.import_next(imp.java)
at org.python.core.imp.import_name(imp.java)
at org.python.core.imp.importName(imp.java)
at org.python.core.ImportFunction.load(__builtin__.java)
at org.python.core.ImportFunction.__call__(__builtin__.java)
at org.python.core.PyObject.__call__(PyObject.java)
at org.python.core.__builtin__.__import__(__builtin__.java)
at org.python.core.imp.importOne(imp.java)
at org.python.pycode._pyx0.f$0(Prepare.py:11)
at org.python.pycode._pyx0.call_function(Prepare.py)
at org.python.core.PyTableCode.call(PyTableCode.java)
at org.python.core.PyCode.call(PyCode.java)
at org.python.core.Py.runCode(Py.java)
at org.python.core.__builtin__.execfile_flags(__builtin__.java)
at
org.python.util.PythonInterpreter.execfile(PythonInterpreter.java)
at PrepareTest1.<init>(PrepareTest1.java:21)
at PrepareTest1.main(PrepareTest1.java:32)
java.lang.UnsatisfiedLinkError: java.lang.UnsatisfiedLinkError: no posix in
java.library.path
|
|
From: dman <ds...@ri...> - 2001-10-18 03:32:25
|
On Wed, Oct 17, 2001 at 08:54:54PM -0500, Robert W. Bill wrote: | On Wed, 17 Oct 2001, Robert Welch wrote: | > Folks: | > | > How can I control the way jython invokes the Java vm? | | Edit the jython startup script. The command "jython" is really a shell | script (jython.bat on windows) that executes Java with the appropriate | options and parameters. Add the -Xmx1024m to the command in the file if | that is the option you need. OR simply invoke java directly: java <java opts> -classpath jython.jar:<other stuff> org.python.util.jython myapp.py Jython is, after all, "just" a java program (albeit a very useful one). -D |
|
From: Robert W. B. <rb...@di...> - 2001-10-18 03:18:10
|
Hello Hubert,
On Wed, 17 Oct 2001, Hubert Yoshizaki wrote:
<snip>
> still having problems...
>
> tried the 'import tryJythonSample'=A0 (without using the jythonc --pack=
age
> option)
>
> Exception in thread "main" java.lang.NullPointerException
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyJavaClass.lookup(PyJavaClass=
.java:39)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyObject.<init>(PyObject.java:=
46)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PySingleton.<init>(PySingleton=
.java:8)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyNone.<init>(PyNone.java:7)
> =A0=A0=A0=A0=A0=A0=A0 at
> org.python.core.PySystemState.initStaticFields(PySystemState.java:341
> )
> =A0=A0=A0=A0=A0=A0=A0 at
> org.python.core.PySystemState.initialize(PySystemState.java:320)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProperties(Py.java:665)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProxy(Py.java:709)
> =A0=A0=A0=A0=A0=A0=A0 at tryJythonSample.<init>(tryJythonSample.java:10=
5)
> =A0=A0=A0=A0=A0=A0=A0 at tryJythonMain.main(tryJythonMain.java:8)
>
> tried the 'import tryJythonSample.* when using the jythonc --package
> option.
> got the error
>
> C:\Hubert\Work\Projects\tryJython\tryJythonProject>java tryJythonMain
> Exception in thread "main" java.lang.NullPointerException
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyJavaClass.lookup(PyJavaClass=
.java:39)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyObject.<init>(PyObject.java:=
46)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PySingleton.<init>(PySingleton=
.java:8)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyNone.<init>(PyNone.java:7)
> =A0=A0=A0=A0=A0=A0=A0 at
> org.python.core.PySystemState.initStaticFields(PySystemState.java:341
> )
> =A0=A0=A0=A0=A0=A0=A0 at
> org.python.core.PySystemState.initialize(PySystemState.java:320)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProperties(Py.java:665)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProxy(Py.java:709)
> =A0=A0=A0=A0=A0=A0=A0 at
> tryJythonSample.tryJythonSample.<init>(tryJythonSample.java:107)
> =A0=A0=A0=A0=A0=A0=A0 at tryJythonMain.main(tryJythonMain.java:8)
>
>
> error wise, unless I'm mistaken, it seems to be running into the same
> problem each time
> Any ideas?
>
> Hubert
I'm not sure this helps, but the code you list below works fine for me
(linux+sunJDK1.3). One thing that might be worth checking is whether
the tryJythonSample class actually exists in a file called
"tryJythonSample.py". The matching classname/filename is required here,
and a difference in those names makes a NPE like you are seeing.
If that's no help, check back again :)
-robert
> (for others, here's the code...)
>
> import org.python.core.*;
> import tryJythonSample;
>
> public class tryJythonMain
> {
> public static void main(String[] args)
> {
> tryJythonSample jySample =3D new tryJythonSample();
> jySample.makeObject();
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0
> }
> }
>
> import java
> class tryJythonSample(java.lang.Object):
> =A0=A0=A0=A0=A0=A0=A0 def __init__(self):
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 "@sig public tryJythonSample()"
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 print "Constructor for tryJythonSampl=
e"
> =A0=A0=A0=A0=A0=A0=A0 def makeObject(self):
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 "@sig public void makeObject()"
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 print "I have just called a python me=
thod!!"
>
>
> _______________________________________________ Jython-users mailing li=
st
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users
>
|
|
From: Robert W. B. <rb...@di...> - 2001-10-18 01:55:31
|
On Wed, 17 Oct 2001, Robert Welch wrote: > Folks: > > How can I control the way jython invokes the Java vm? Edit the jython startup script. The command "jython" is really a shell script (jython.bat on windows) that executes Java with the appropriate options and parameters. Add the -Xmx1024m to the command in the file if that is the option you need. > In particular, I'd like it to invoke java as follows: > > java -Xmx1024m > > because I'm creating huge vectors and I'm getting out of > memory exceptions. -robert |
|
From: Robert W. <rob...@ho...> - 2001-10-18 01:05:21
|
Folks: How can I control the way jython invokes the Java vm? In particular, I'd like it to invoke java as follows: java -Xmx1024m because I'm creating huge vectors and I'm getting out of memory exceptions. Thanks in advance, ---Rob Welch |
|
From: Hubert Y. <yos...@da...> - 2001-10-17 16:35:08
|
Hi Robert, >jythonc issues this message. -deprecation is not a jythonc option, it is >instead a javac option. Jythonc rightly gives up when it encounters >unknown switches. Thought as much, thanks for confirming :) >> And if this is java, then how can you turn on the option when using jythonc? > >jythonc allows specifying compiler options with the -J switch. In other >words, you just add a -J before any java compiler options. Try: > > jythonc -J -deprecation tryJythonSample.py Works like a charm. Whoops, should have read the jythonc help more closely since it's right there. thanks, Hubert |
|
From: Hubert Y. <yos...@da...> - 2001-10-17 16:23:37
|
<html>
Hi Robert,<br>
Thanks for the advice, <br>
<br>
>There is a class naming problem.=A0 The class statement defines<br>
>"tryJythonSample", but the initializer tries to initialize
the<br>
>class "tryJython" in its @sig string.<br>
<br>
ahaha, don't know how I was blind/dumb enough to miss something as simple
as that. Must have been half-asleep when I miss-typed that. Oh well.
:P<br>
<br>
>> import tryJythonSample.*;<br>
><br>
>This import might be a problem.=A0 Unless you used the jythonc
--package<br>
>(-p) option to specify the tryJythonSample package, you should just
use<br>
>the following import:<br>
><br>
>import tryJythonSample<br>
<br>
still having problems...<br>
<br>
tried the 'import tryJythonSample' (without using the jythonc
--package option)<br>
<br>
<font color=3D"#0000FF"><i>Exception in thread "main"
java.lang.NullPointerException<br>
at
org.python.core.PyJavaClass.lookup(PyJavaClass.java:39)<br>
at
org.python.core.PyObject.<init>(PyObject.java:46)<br>
at
org.python.core.PySingleton.<init>(PySingleton.java:8)<br>
at
org.python.core.PyNone.<init>(PyNone.java:7)<br>
at
org.python.core.PySystemState.initStaticFields(PySystemState.java:341<br>
)<br>
at
org.python.core.PySystemState.initialize(PySystemState.java:320)<br>
at
org.python.core.Py.initProperties(Py.java:665)<br>
at
org.python.core.Py.initProxy(Py.java:709)<br>
at
tryJythonSample.<init>(tryJythonSample.java:105)<br>
at
tryJythonMain.main(tryJythonMain.java:8)<br>
<br>
</font></i><font color=3D"#000000">tried the 'import tryJythonSample.* when
using the jythonc --package option.<br>
got the error<br>
<br>
</font><font color=3D"#0000FF"><i>C:\Hubert\Work\Projects\tryJython\tryJytho=
nProject>java
tryJythonMain<br>
Exception in thread "main" java.lang.NullPointerException<br>
at
org.python.core.PyJavaClass.lookup(PyJavaClass.java:39)<br>
at
org.python.core.PyObject.<init>(PyObject.java:46)<br>
at
org.python.core.PySingleton.<init>(PySingleton.java:8)<br>
at
org.python.core.PyNone.<init>(PyNone.java:7)<br>
at
org.python.core.PySystemState.initStaticFields(PySystemState.java:341<br>
)<br>
at
org.python.core.PySystemState.initialize(PySystemState.java:320)<br>
at
org.python.core.Py.initProperties(Py.java:665)<br>
at
org.python.core.Py.initProxy(Py.java:709)<br>
at
tryJythonSample.tryJythonSample.<init>(tryJythonSample.java:107)<br>
at
tryJythonMain.main(tryJythonMain.java:8)<br>
<br>
<br>
</font></i><font color=3D"#000000">error wise, unless I'm mistaken, it
seems to be running into the same problem each time <br>
Any ideas?<br>
<br>
Hubert<br>
<br>
<br>
(for others, here's the code...)<br>
<br>
import org.python.core.*;<br>
import tryJythonSample;<br>
<br>
public class tryJythonMain<br>
{<br>
public static void main(String[] args)<br>
{<br>
tryJythonSample jySample =3D new tryJythonSample();<br>
jySample.makeObject();<br>
=20
&nbs=
p; &n=
bsp; =
&nbs=
p; &n=
bsp;
<br>
}<br>
}<br>
<br>
import java<br>
class tryJythonSample(java.lang.Object):<br>
def __init__(self):<br>
"@sig public tryJythonSample()"<br>
print
"Constructor for tryJythonSample"<br>
def makeObject(self):<br>
"@sig public void makeObject()"<br>
print
"I have just called a python method!!"<br>
<br>
<br>
<br>
</font>
<BR>
</html>
|
|
From: Robert W. B. <rb...@di...> - 2001-10-17 02:33:19
|
Hello Hubert,
On Tue, 16 Oct 2001, Hubert Yoshizaki wrote:
> Hi,
> I'm just experimenting with jythonc (new to Python/Jython and not reall=
y experienced in Java
> either for that matter) and came up with this problem.
>
> My python test code is simply this:
>
> import java
> class tryJythonSample(java.lang.Object):
> =A0=A0=A0=A0=A0=A0=A0 def __init__(self):
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 "@sig public tryJython()"
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 print "Constructor for tryJython"
> =A0=A0=A0=A0=A0=A0=A0 def makeObject(self):
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 "@sig public void makeObject()"
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 print "I have just called a python me=
thod!!"
There is a class naming problem. The class statement defines
"tryJythonSample", but the initializer tries to initialize the
class "tryJython" in its @sig string.
> after doing a jythonc tryJythonSample.py and get the corresponding clas=
s files and java file
> I created a java file that calls the methods.
> My java file.
>
> import tryJythonSample.*;
This import might be a problem. Unless you used the jythonc --package
(-p) option to specify the tryJythonSample package, you should just use
the following import:
import tryJythonSample
It's easy to forget Jython's 'extra' module layer (package/module/class a=
s
opposed to package/class). Using a jythonc-compiled class from Java acts
as if there were no module.
> import org.python.core.*;
>
> public class tryJythonMain
> {
> public static void main(String[] args)
> {
> tryJythonSample jySample =3D new tryJythonSample();
> jySample.makeObject();
> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0
> }
> }=A0=A0 =A0=A0=A0=A0
>
> when I run my java file (tryJythonMain) I get the following:
>
> Exception in thread "main" java.lang.NullPointerException
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyJavaClass.lookup(PyJavaClass=
.java:39)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyObject.<init>(PyObject.java:=
46)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PySingleton.<init>(PySingleton=
.java:8)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PyNone.<init>(PyNone.java:7)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PySystemState.initStaticFields=
(PySystemState.java:341
> )
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.PySystemState.initialize(PySys=
temState.java:320)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProperties(Py.java:665)
> =A0=A0=A0=A0=A0=A0=A0 at org.python.core.Py.initProxy(Py.java:709)
> =A0=A0=A0=A0=A0=A0=A0 at tryJythonSample.<init>(tryJythonSample.java:10=
5)
> =A0=A0=A0=A0=A0=A0=A0 at tryJythonMain.main(tryJythonMain.java:9)
>
> Can anyone tell me what I'm doing wrong?
see notes in code samples.
> Is there a problem with dependencies?
no.
-robert
|
|
From: Robert W. B. <rb...@di...> - 2001-10-17 02:17:56
|
Hello Hubert,
On Tue, 16 Oct 2001, Hubert Yoshizaki wrote:
> Two question.
> When I compile by doing a
> jythonc tryJythonSample.py
> I get the following.
>
> processing tryJythonSample
>
> Required packages:
> =A0 java.lang
>
> Creating adapters:
>
> Creating .java files:
> =A0 tryJythonSample module
> =A0=A0=A0 tryJythonSample extends java.lang.Object
>
> Compiling .java to .class...
> Compiling with args: ['C:\\jdk1.3.1\\bin\\javac', '-classpath', 'C:\\jy=
thon-2.0\
> \jython.jar;;c:\\JSDK2.0\\bin;c:\\jdk1.3\\bin;c:\\j2sdkee1.2.1\\bin;c:\=
\jython-2
> .0;.\\jpywork;;C:\\jython-2.0\\Tools\\jythonc;C:\\Hubert\\Work\\Project=
s\\tryJyt
> hon\\.;C:\\jython-2.0\\Lib;C:\\jython-2.0', '.\\jpywork\\tryJythonSampl=
e.java']
> 0=A0 Note: Some input files use or override a deprecated API.
> Note: Recompile with -deprecation for details.
>
> Note the last line. Wondering why this came out I did the following.
jythonc generates a .java file that ends up containing methods
marked as deprecated in newer JVMs, The message is just a warning about
that and is otherwise insignificant.
> C:\Hubert\Work\Projects\tryJython>jythonc -deprecation tryJythonSample.=
py
> Usage: jpythonc [options] [module]*
>
> where options include:
>
> =A0 --package package
> =A0 -p package
> =A0=A0=A0=A0=A0 put all compiled code into the named Java package
> .
> .
> .
> <snip>
>
> option -e not recognized
>
>
> Is this a warning coming from jython or java?
jythonc issues this message. -deprecation is not a jythonc option, it is
instead a javac option. Jythonc rightly gives up when it encounters
unknown switches.
> I'm presuming java. Am I wrong?
see above.
> And if this is java, then how can you turn on the option when using jyt=
honc?
jythonc allows specifying compiler options with the -J switch. In other
words, you just add a -J before any java compiler options. Try:
jythonc -J -deprecation tryJythonSample.py
-robert
|
|
From: Hubert Y. <yos...@da...> - 2001-10-16 23:16:49
|
<html>
Hi,<br>
I'm just experimenting with jythonc (new to Python/Jython and not really
experienced in Java either for that matter) and came up with this
problem.<br>
<br>
My python test code is simply this:<br>
<br>
<font color="#0000FF"><i>import java<br>
class tryJythonSample(java.lang.Object):<br>
def __init__(self):<br>
"@sig public tryJython()"<br>
print
"Constructor for tryJython"<br>
def makeObject(self):<br>
"@sig public void makeObject()"<br>
print
"I have just called a python method!!"<br>
<br>
</font></i><font color="#000000">after doing a jythonc tryJythonSample.py
and get the corresponding class files and java file I created a java file
that calls the methods.<br>
My java file.<br>
<br>
</font><font color="#0000FF"><i>import tryJythonSample.*;<br>
import org.python.core.*;<br>
<br>
public class tryJythonMain<br>
{<br>
public static void main(String[] args)<br>
{<br>
tryJythonSample jySample = new tryJythonSample();<br>
jySample.makeObject();<br>
<br>
}<br>
} </font></i><font color="#000000">
<br>
<br>
when I run my java file (tryJythonMain) I get the following:<br>
<br>
</font><font color="#0000FF"><i>Exception in thread "main"
java.lang.NullPointerException<br>
at
org.python.core.PyJavaClass.lookup(PyJavaClass.java:39)<br>
at
org.python.core.PyObject.<init>(PyObject.java:46)<br>
at
org.python.core.PySingleton.<init>(PySingleton.java:8)<br>
at
org.python.core.PyNone.<init>(PyNone.java:7)<br>
at
org.python.core.PySystemState.initStaticFields(PySystemState.java:341<br>
)<br>
at
org.python.core.PySystemState.initialize(PySystemState.java:320)<br>
at
org.python.core.Py.initProperties(Py.java:665)<br>
at
org.python.core.Py.initProxy(Py.java:709)<br>
at
tryJythonSample.<init>(tryJythonSample.java:105)<br>
at
tryJythonMain.main(tryJythonMain.java:9)<br>
<br>
</font></i><font color="#000000">Can anyone tell me what I'm doing
wrong?<br>
Is there a problem with dependencies?<br>
Or is it something really dumb and simple that tells me I'm simply too
tired to think properly? <br>
Any help would be greatly appreciated.<br>
Thanks,<br>
Hubert</font>
<BR>
</html>
|
|
From: Hubert Y. <yos...@da...> - 2001-10-16 23:03:31
|
<html> Two question.<br> When I compile by doing a <br> jythonc tryJythonSample.py<br> I get the following.<br> <br> <font color="#0000FF"><i>processing tryJythonSample<br> <br> Required packages:<br> java.lang<br> <br> Creating adapters:<br> <br> Creating .java files:<br> tryJythonSample module<br> tryJythonSample extends java.lang.Object<br> <br> Compiling .java to .class...<br> Compiling with args: ['C:\\jdk1.3.1\\bin\\javac', '-classpath', 'C:\\jython-2.0\<br> \jython.jar;;c:\\JSDK2.0\\bin;c:\\jdk1.3\\bin;c:\\j2sdkee1.2.1\\bin;c:\\jython-2<br> .0;.\\jpywork;;C:\\jython-2.0\\Tools\\jythonc;C:\\Hubert\\Work\\Projects\\tryJyt<br> hon\\.;C:\\jython-2.0\\Lib;C:\\jython-2.0', '.\\jpywork\\tryJythonSample.java']<br> 0 Note: Some input files use or override a deprecated API.<br> Note: Recompile with -deprecation for details.<br> <br> </font></i><font color="#000000">Note the last line. Wondering why this came out I did the following.<br> <br> </font><font color="#0000FF"><i>C:\Hubert\Work\Projects\tryJython>jythonc -deprecation tryJythonSample.py<br> Usage: jpythonc [options] [module]*<br> <br> where options include:<br> <br> --package package<br> -p package<br> put all compiled code into the named Java package<br> .<br> .<br> .<br> <snip><br> <br> option -e not recognized<br> <br> <br> </font></i><font color="#000000">Is this a warning coming from jython or java?<br> I'm presuming java. Am I wrong?<br> And if this is java, then how can you turn on the option when using jythonc?<br> <br> </font> <BR> </html> |
|
From: Adam K. <AK...@ma...> - 2001-10-16 14:53:14
|
I noticed that the most recent distributions are missing lib files like zipfile.py and zlib.py, but older distributions had it. Is there some reason for this? -----Original Message----- From: jyt...@li... [mailto:jyt...@li...] Sent: Monday, October 08, 2001 3:05 PM To: jyt...@li... Subject: Jython-users digest, Vol 1 #281 - 1 msg Send Jython-users mailing list submissions to jyt...@li... To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/jython-users or, via email, send a message with subject or body 'help' to jyt...@li... You can reach the person managing the list at jyt...@li... When replying, please edit your Subject line so it is more specific than "Re: Contents of Jython-users digest..." Today's Topics: 1. Running jythonc classes from web server cgi (Steven M. Castellotti) --__--__-- Message: 1 From: "Steven M. Castellotti" <sca...@sa...> To: jyt...@li... Date: 08 Oct 2001 13:44:09 -0400 Subject: [Jython-users] Running jythonc classes from web server cgi I seem to be having a strange problem when I call a jythonc-compiled jython program from a cgi. The program will run correctly if i "su - nobody" (the server runs as nobody) and execute it by hand, but when I try to call it from a cgi python script, I get the following error in the apache log: ValueError: insecure string pickle Java Traceback: at org.python.core.Py.ValueError(Py.java) at org.python.modules.cPickle$Unpickler.load_string(cPickle.java) at org.python.modules.cPickle$Unpickler.load(cPickle.java) at org.python.modules.cPickle.load(cPickle.java) at java.lang.reflect.Method.invoke(Native Method) at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java) at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java) at org.python.core.PyObject.__call__(PyObject.java) at org.python.core.PyObject.invoke(PyObject.java) at export_cog_data$_PyInner.load_python_data$2(export_cog_data.java:146) at export_cog_data$_PyInner.call_function(export_cog_data.java:80) at org.python.core.PyTableCode.call(PyTableCode.java) at org.python.core.PyTableCode.call(PyTableCode.java) at org.python.core.PyFunction.__call__(PyFunction.java) at export_cog_data$_PyInner.main$11(export_cog_data.java:454) at export_cog_data$_PyInner.call_function(export_cog_data.java:98) at org.python.core.PyTableCode.call(PyTableCode.java) at org.python.core.PyCode.call(PyCode.java) at org.python.core.imp.createFromCode(imp.java) at org.python.core.Py.runMain(Py.java) at export_cog_data.main(export_cog_data.java:491) Traceback (innermost last): File "export_cog_data.py", line 0, in main File "export_cog_data.py", line 0, in load_python_data ValueError: insecure string pickle Apache 1.3.20 (custom compiled) Python 1.5.2 Jython 2.1a3 Sun JDK 1.3.1_01 Redhat 7.1 Linux 2.4.7 (custom compiled) What I am essentially trying to do is this: 1) A Python/GTK program is used to generate, and then pickle data in the python format 2) A Jython program is then used to unpickle the data, convert to Java data, and export a Java serialized file 3) A Java Applet reads in the serialized file. I don't have a problem with any of this unless I'm running it on the web server. I am running jythonc-compiled files because the web host does not have jython installed. I am doing the conversion through CGI because both the applet and the PyGTK program are GPL, and I can't distribute jython.jar with GPL'd code, because I don't believe it's compatible with the GPL. I figure that I can code the PyGTK program to attach to the website and automate the conversion process remotely, and since I'm not distributing the jython.jar, everything is kosher. If anyone has any pointers offhand, please let me know. If posting some or all of the code would be helpful, just let me know. Thanks a lot guys. -Steve Castellotti St...@in... -- Steve Castellotti Systems Programmer School of Arts and Sciences, University of Pennsylvania --__--__-- _______________________________________________ Jython-users mailing list Jyt...@li... https://lists.sourceforge.net/lists/listinfo/jython-users End of Jython-users Digest |
|
From: Humbel O. <Otm...@bi...> - 2001-10-16 06:33:29
|
[Samuele Pedroni] > Thanks for the report. > No, the real problem is that sun didn't get the zip > specification right > or there are two "interpeprations" of it and took care of just one. <snip> Sorry for warming up cold coffee... But if I try to add another class file into the 'invalid' .jar file using WinZip, or if I try to delete a file from the .jar using WinZip, I get the following error log: """ Action: Add (and replace) files Include subfolders: no Save full path: no Include system and hidden files: yes Warning: extended local header not found for javax/infobus/ArrayAccess.class Error: Unsupported or invalid Zip file structure (E:\java\n_lib\bisonInfra.jar) """ This lets me think that maybe Sun is not fully at fault here. If it would be of some help, I could burn the .jar on CD and send it to you. Please let me know. (It is 16.6 MB so my mail system would reject it). Best wishes, Oti. |
|
From: Samuele P. <pe...@in...> - 2001-10-15 14:55:05
|
Sorry if I was not clear but what I was saying
is that if you try to execute jython code using
an the interpreter and not going the way of
freezing it with jythonc, the intepreter (not you)
will try/need to creates classloaders and
in order to do that it will need the corresponding
permission.
So the point is that in any case you will have to
deal with the problem of granting permissions
to your applet.
regards.
----- Original Message -----
From: Sells, Fred <fr...@ad...>
To: 'Samuele Pedroni' <pe...@in...>; Paul Giotta
<pau...@so...>; <jyt...@li...>; Sells,
Fred <fr...@ad...>
Sent: Monday, October 15, 2001 4:27 PM
Subject: RE: [Jython-users] error imbedding Jython into java applet
> I'm confused on the need to define my own class loader :(
>
> I'm willing to accept that I must, but what class loader do I create. I'm
> kind of lost here, any example would be most helpful.
>
> tia.
>
> -----Original Message-----
> From: Samuele Pedroni [mailto:pe...@in...]
> Sent: Thursday, October 11, 2001 5:05 AM
> To: Paul Giotta; jyt...@li...; Sells, Fred
> Subject: Re: [Jython-users] error imbedding Jython into java applet
>
>
> Hi,
> after that you will discover that jython need to create a
> classloader in order to dynamically execute some code,
>
> a thing that cannot be done with the vanilla applet
> permissions :( !
>
> regards.
>
> ----- Original Message -----
> From: Paul Giotta <pau...@so...>
> To: <jyt...@li...>; Sells, Fred
> <fr...@ad...>
> Sent: Thursday, October 11, 2001 10:40 AM
> Subject: Re: [Jython-users] error imbedding Jython into java applet
>
>
> > Jython tries to read the system properties on startup, which will cause a
> security exception in an applet. Here is the offending code snippet, from
> PySytemState.java:
> >
> > private static boolean initialized = false;
> > public static void initialize() {
> > if (initialized)
> > return;
> > initialize(System.getProperties(), null, new String[] {""});
> > }
> >
> > public static synchronized void initialize(Properties preProperties,
> > Properties postProperties,
> > String[] argv)
> > {
> > initialize(preProperties, postProperties, argv, null);
> > }
> >
> >
> >
> > You can pre-empt this by calling the static method
> PySystemState.initialize( preProperties, postProperties, argv, null ) using
> your own Properties objects as the first 2 patameters. If you do this before
> you create the interpreter, then the boolean "initialized" will be set to
> true,
> and the the call to System.getProperties() will not be executed when you do
> create the interpreter.
> >
> > The Properties objects in the first 2 arguments should contain values from
> the registry file. They can contain jython.home, but this will not be
> usefull,
> as your applet cannot read files anyway. Values in postProperties will
> overide
> values in preProperties.
> >
> >
> > If I recall, the jython installer gives you the option to install source
> code, but this is not selected by default. You may need to rerun the
> installer
> to get it.
> >
> > -Paul
> >
> >
> >
> > --
> > Paul Giotta
> > Software Architect
> > pau...@so...
> >
> > Office: +41 1 445 2370 | Fax: +41 1 445 2372 | Mobile: +41 76 389 1180
> > Technoparkstr.1, 8005 Zurich, Switzerland | http://www.softwired-inc.com
> >
> > * e2e Java Messaging, Pure and Simple. *
> >
> >
> >
> >
> > _______________________________________________
> > Jython-users mailing list
> > Jyt...@li...
> > https://lists.sourceforge.net/lists/listinfo/jython-users
> >
>
>
> _______________________________________________
> Jython-users mailing list
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users
>
|
|
From: Sells, F. <fr...@ad...> - 2001-10-15 14:25:17
|
I'm confused on the need to define my own class loader :(
I'm willing to accept that I must, but what class loader do I create. I'm
kind of lost here, any example would be most helpful.
tia.
-----Original Message-----
From: Samuele Pedroni [mailto:pe...@in...]
Sent: Thursday, October 11, 2001 5:05 AM
To: Paul Giotta; jyt...@li...; Sells, Fred
Subject: Re: [Jython-users] error imbedding Jython into java applet
Hi,
after that you will discover that jython need to create a
classloader in order to dynamically execute some code,
a thing that cannot be done with the vanilla applet
permissions :( !
regards.
----- Original Message -----
From: Paul Giotta <pau...@so...>
To: <jyt...@li...>; Sells, Fred
<fr...@ad...>
Sent: Thursday, October 11, 2001 10:40 AM
Subject: Re: [Jython-users] error imbedding Jython into java applet
> Jython tries to read the system properties on startup, which will cause a
security exception in an applet. Here is the offending code snippet, from
PySytemState.java:
>
> private static boolean initialized = false;
> public static void initialize() {
> if (initialized)
> return;
> initialize(System.getProperties(), null, new String[] {""});
> }
>
> public static synchronized void initialize(Properties preProperties,
> Properties postProperties,
> String[] argv)
> {
> initialize(preProperties, postProperties, argv, null);
> }
>
>
>
> You can pre-empt this by calling the static method
PySystemState.initialize( preProperties, postProperties, argv, null ) using
your own Properties objects as the first 2 patameters. If you do this before
you create the interpreter, then the boolean "initialized" will be set to
true,
and the the call to System.getProperties() will not be executed when you do
create the interpreter.
>
> The Properties objects in the first 2 arguments should contain values from
the registry file. They can contain jython.home, but this will not be
usefull,
as your applet cannot read files anyway. Values in postProperties will
overide
values in preProperties.
>
>
> If I recall, the jython installer gives you the option to install source
code, but this is not selected by default. You may need to rerun the
installer
to get it.
>
> -Paul
>
>
>
> --
> Paul Giotta
> Software Architect
> pau...@so...
>
> Office: +41 1 445 2370 | Fax: +41 1 445 2372 | Mobile: +41 76 389 1180
> Technoparkstr.1, 8005 Zurich, Switzerland | http://www.softwired-inc.com
>
> * e2e Java Messaging, Pure and Simple. *
>
>
>
>
> _______________________________________________
> Jython-users mailing list
> Jyt...@li...
> https://lists.sourceforge.net/lists/listinfo/jython-users
>
_______________________________________________
Jython-users mailing list
Jyt...@li...
https://lists.sourceforge.net/lists/listinfo/jython-users
|
|
From: rohit s. <ro2...@ya...> - 2001-10-15 12:43:50
|
Hi, I am having a jython class which subclasses a java superclass. I want to access protected variables and call protected methods of my Java superclass in my jython subclass. How can I do this? I tried self.super__<method>() for calling protected methods of superclass but it is not working for me and it throws error. What shud I do? Regards, Rohit __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com |
|
From: Samuele P. <pe...@in...> - 2001-10-14 19:35:43
|
>
> When you say "does not support effectively atexit" do you mean that
> there some limitations that I did not encounter?
>
I can reformulate that as does support it but without effect ;(
C:\usr\jython-2.0\Lib>..\jython atexit.py
C:\usr\jython-2.0\Lib>\usr\Python20\python atexit.py
running x3('no kwd args', kwd=None)
running x3(5, kwd='bar')
running x2(12)
running x1
That's jython 2.0 and I don't think the situation has improved
since then, at least that's my understanding of the codebase.
Samuele.
|
|
From: <bc...@wo...> - 2001-10-13 17:07:10
|
[Robert W. Bill] >Does anyone know what happened to the Jython FAQ and Wiki? The data have been restored now. Thank you Barry, for your help. regards, finn |
|
From: Samuele P. <pe...@in...> - 2001-10-12 20:14:49
|
Hi. > I've embedded jython into a java 1.3 applet which works as an appliction but > gives me a file access error on cachdir/packages as an applet. > > see earlier thread: error embedding Jython into java applet > > > can jython work without cachedir or can it use a URL back to the server. > > tia yes and no are the answers, but how to disable the cachedir ? there is no clean way to do that in your context, the point is that jython at moment does not support what you are trying :). Its support for applets mainly goes through the jythonc way, The code needs changes for doing cleanly what you're trying but see below. > I'm researching permissions and signing; although I would prefer to not go > that way. Unless you can go the jythonc way, you will need to grant permissions to your applet anyway because of the cited classloader creation problem. regards. |
|
From: Sells, F. <fr...@ad...> - 2001-10-12 17:25:16
|
I've embedded jython into a java 1.3 applet which works as an appliction but gives me a file access error on cachdir/packages as an applet. see earlier thread: error embedding Jython into java applet I'm researching permissions and signing; although I would prefer to not go that way. can jython work without cachedir or can it use a URL back to the server. tia Fred |
|
From: <ba...@zo...> - 2001-10-12 14:50:21
|
>>>>> "FB" == Finn Bock <bc...@wo...> writes:
FB> Yeah, that was a way of getting the backup off-site and onto
FB> Pythonlabs' backup tapes. It seems we need them now.
FB> Barry, would you be able to find some copies of these files:
| jython-faqw.tgz
| jython-moin.tgz
Yep, I've got daily copies of them dating back to Aug 4. We back them
up nightly and rotate our tapes weekly, with about a 7 week tape
cycle. Also, this is on a big disk so I don't routinely wipe them.
wget is nice in that it doesn't overwrite yesterday's copy, it simply
appends the next serial number to the file name.
FB> I'm not entirely sure when the backup should be from, but on
FB> oct. 9, SourceForge added a note about how each project have
FB> to do their own backups. I guess that the backup have to be
FB> from sometime before oct. 9 to have any usefull data on
FB> it. The compined size of the two files should be bigger then
FB> 34Kb.
The jython-faqw.tgz file from Oct 8 is 47825 bytes while Oct 9's
32166. Similarly jython-moin.tgz from Oct 8 is 78210 while Oct 9's is
2760, so I'm guessing whatever bad thing happened, happened sometime
b/w the suckover of the 8th's and 9th's backup.
FB> If the problem of "rm -fr" is something that will happen again
FB> and again, we have to improve our backup mechanism. I
FB> certainly can't bug Barry every time.
I certainly don't mind the occasional snafu, and so far it hasn't been
a problem.
The Oct 8 copy of both tarballs now reside in
ftp://ftp.python.org:pub/jython
Please let me know if there's anything else you need.
Cheers,
-Barry
|
|
From: <bc...@wo...> - 2001-10-12 14:11:15
|
[Samuele Pedroni] >oops, another rm -rf with root perms > >the last time this happend SF had been attacked. > >Finn said he put in place a new backup mechanims. Yeah, that was a way of getting the backup off-site and onto Pythonlabs' backup tapes. It seems we need them now. Barry, would you be able to find some copies of these files: jython-faqw.tgz jython-moin.tgz I'm not entirely sure when the backup should be from, but on oct. 9, SourceForge added a note about how each project have to do their own backups. I guess that the backup have to be from sometime before oct. 9 to have any usefull data on it. The compined size of the two files should be bigger then 34Kb. >We should wait for his intervention, at least I have >missed his explanation about the details >and could not figure them out quickly >logging in to SF. Well, the backup only creates the .tgz files at http://www.jython.org/backups Once in a while, Barry then copies them to tape. There is no support for multiple backups or generations in the simple copy scheme that I use. The next day the cron job is executed, the previous backup is overridden. If the problem of "rm -fr" is something that will happen again and again, we have to improve our backup mechanism. I certainly can't bug Barry every time. regards, finn |
|
From: Samuele P. <pe...@in...> - 2001-10-12 09:12:58
|
oops, another rm -rf with root perms the last time this happend SF had been attacked. Finn said he put in place a new backup mechanims. We should wait for his intervention, at least I have missed his explanation about the details and could not figure them out quickly logging in to SF. Samuele Pedroni. ----- Original Message ----- From: Robert W. Bill <rb...@di...> To: <jyt...@li...> Sent: Friday, October 12, 2001 1:38 AM Subject: [Jython-users] FAQ + Wiki > Hi, > > Does anyone know what happened to the Jython FAQ and Wiki? > > > tnx, > Robert > > > _______________________________________________ > Jython-users mailing list > Jyt...@li... > https://lists.sourceforge.net/lists/listinfo/jython-users > |
|
From: Robert W. B. <rb...@di...> - 2001-10-11 23:38:57
|
Hi, Does anyone know what happened to the Jython FAQ and Wiki? tnx, Robert |
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