[Jython-users] problems are going on...

[Achim G. <Ach...@un...>]

I am trying to compile some python code into an applet. I am doing this with
jdk2-1.4 and jython-2.1 .

This is the Python code:

# two java packages
import GatoAlgorithmEngine
import GatoGUI

class GatoPythonAlgorithmEngine(GatoAlgorithmEngine.GatoAlgorithmEngine):

    def __init__(self, GUI):
        "@sig public GatoPythonAlgorithmEngine(GatoGUI.GatoGUI GUI)"
        GatoAlgorithmEngine.GatoAlgorithmEngine.__init__(self, GUI)

    def run(self):
        "@sig public void run()"
        print "Hello"


Here are the messages:
[achim@localhost java]$ jythonc -p GatoPythonAlgorithmEngine
PythonCode/GatoPythonAlgorithmEngine.py
processing GatoPythonAlgorithmEngine

Required packages:
  GatoAlgorithmEngine
  GatoGUI

Creating adapters:

Creating .java files:
  GatoPythonAlgorithmEngine module
    GatoPythonAlgorithmEngine extends GatoAlgorithmEngine.GatoAlgorithmEngine

Compiling .java to .class...
Compiling with args: ['/opt/j2sdk1.4.0/bin/javac', '-classpath',
'/opt/jython-2.1/jython.jar::./jpywork:PythonCode:/opt/jython-2.1/Tools/jythonc:/home/achim/java/.:/opt/jython-2.1/Lib',
'./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java']
1  
ERROR DURING JAVA COMPILATION... EXITING

To get the java errors, I repeated the javac command:

[achim@localhost java]$ /opt/j2sdk1.4.0/bin/javac -classpath
/opt/jython-2.1/jython.jar::./jpywork:PythonCode:/opt/jython-2.1/Tools/jythonc:/home/achim/java/.:/opt/jython-2.1/Lib
./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java
./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java:90: cannot
resolve symbol
symbol  : class GatoPythonAlgorithmEngine  
location: class GatoPythonAlgorithmEngine.GatoPythonAlgorithmEngine
       
Py.runMain(GatoPythonAlgorithmEngine.GatoPythonAlgorithmEngine._PyInner.class,
newargs, GatoPythonAlgorithmEngine.jpy$packages,
GatoPythonAlgorithmEngine.jpy$mainProperties, null, new String[]
{"GatoPythonAlgorithmEngine"});
                                            ^
./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java:112: cannot
resolve symbol
symbol  : constructor GatoAlgorithmEngine  ()
location: class GatoAlgorithmEngine.GatoAlgorithmEngine
        super();
        ^
Note: ./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java uses or
overrides a deprecated API.
Note: Recompile with -deprecation for details.
2 errors


Is the first error dependent on java's version?  The code produced by jythonc is
appended. javac can't find the nested class. I don't know why.

The second error is caused by the default constructor call for the base class.
It doesn't exist. I thought, I could avoid calling it, but I couldn't. Any
hints?

The deprecated message comes from:

./jpywork/GatoPythonAlgorithmEngine/GatoPythonAlgorithmEngine.java:98: warning:
jfindattr(org.python.core.PyProxy,java.lang.String) in org.python.core.Py has
been deprecated
        PyObject inst = Py.jfindattr(this, "run");