Mark Proctor wrote:

>  Just found out why I can't use PythonInterp shared amongst RuleSet. 
>  While the imports are shared and some of the functions each 
>  condition/consequence has its own variables passed as locals and no 
>  mangling or sharing should occur; hence why we were using 
>  Py.runCode(PyCode code, PyObject locals, PyObject globals)  - All 
>  variables are passed via a dict andthe locals parameter.

the most natural way is likely to pass the dict with shared imports
and functions as globals.




>  Mark
>  Mark Proctor wrote:
>  
> > Just tried that, needed to be wrapped in a function otherwise it 
> > errors. Gonna get the shared interp thing working.
> >
> > Mark
> > Mark Proctor wrote:
> >
> >> just chatting to one of the other developers, think we might be able 
> >> to have a PythonInterpretor for each RuleSet, which should solve this 
> >> issue. Otherwise whats potentially wrong with doing an exec with the 
> >> following to emulate an expression:
> >>         String tempText = stripOuterIndention( text );
> >>         if (type.equals("eval"))
> >>         {
> >>             tempText = "return (" + tempText + ")";
> >>         }
> >>         this.text = newText.append(tempText).toString();
> >>
> >>
> >> Mark
> >> Oti wrote:
> >>
> >>>IMHO you cannot eval an import statement:
> >>>  Jython 2.1 on java1.4.2_05 (JIT: null)
> >>>  Type "copyright", "credits" or "license" for more information.
> >>>  >>> exec("from java.lang import String")
> >>>  >>> eval("from java.lang import String")
> >>>  Traceback (innermost last):
> >>>    File "<console>", line 1, in ?
> >>>    File "<string>", line 1  
> >>>  	from java.lang import String
> >>>	^
> >>>  SyntaxError: invalid syntax
> >>>  >>> 
> >>>
> >>>so you have to exec the imports first, e.g. like Jim suggested.
> >>>
> >>>Best wishes,
> >>>Oti.
> >>>
> >>>--- Jim Adrig <jim@[...].com> wrote:
> >>>
> >>>  
> >>>
> >>>>If you are running these from Java, maybe something like what we do 
> >>>>will work?
> >>>>
> >>>>First we 'add_package' since we have the cachedir stuff turned off:
> >>>>
> >>>>   // for Swing GUI building:
> >>>>     PySystemState.add_package("javax");
> >>>>     PySystemState.add_package("javax.swing");
> >>>>     PySystemState.add_package("javax.swing.text");
> >>>>     PySystemState.add_package("java.awt");         // Color, etc.
> >>>>     PySystemState.add_package("java.awt.event");
> >>>>
> >>>>Then create an interpreter and 'execfile' all our standard 
> >>>>imports/functions
> >>>>
> >>>>	  python.execfile( functionFileStream, functionFileName ); // pass
> >>>>the 
> >>>>name for parsing errors
> >>>>
> >>>>The 'functionFileStream' contains lots of things like:
> >>>>
> >>>>   from javax.swing import JCheckBox, JComboBox, JFrame, JMenuBar, 
> >>>>JMenu, JMenuItem, JTable, JButton, JOptionPane, JRadioButton, 
> >>>>JTextField
> >>>>   from java.awt import Color, GridLayout, GridBagLayout
> >>>>
> >>>>
> >>>>On Oct 21, 2004, at 12:45 PM, Mark Proctor wrote:
> >>>>
> >>>>    
> >>>>
> >>>>>I'm compiling expressions and blocks for use in our application, to
> >>>>>      
> >>>>>
> >>>>>this we pre-append import statements declared elsewhere. It works
> >>>>>      
> >>>>>
> >>>>fine 
> >>>>    
> >>>>
> >>>>>when type is "exec" for blocks but fails when its "eval" for 
> >>>>>expressions. Any ideas of how to get this to work?
> >>>>>
> >>>>>Mark
> >>>>>
> >>>>>   protected Interp(String text, Imports imports, String type)
> >>>>>   {
> >>>>>       this.origininalText = text;
> >>>>>       StringBuffer newText = new StringBuffer();
> >>>>>
> >>>>>       if ((imports != null)&&(imports.getImportEntries() != null))
> >>>>>       {
> >>>>>           Iterator it =imports.getImportEntries().iterator();
> >>>>>                     while (it.hasNext())
> >>>>>           {                              ImportEntry importEntry =
> >>>>>      
> >>>>>
> >>>>>(ImportEntry) it.next();
> >>>>>               if (importEntry instanceof PythonImportEntry)
> >>>>>               {
> >>>>>                   newText.append(importEntry.getImportEntry());
> >>>>>                   newText.append(";");
> >>>>>                   newText.append(newline);
> >>>>>               }
> >>>>>           }                         }
> >>>>>                            this.text = 
> >>>>>newText.append(stripOuterIndention( text )).toString();
> >>>>>
> >>>>>       this.node = ( modType ) parser.parse( this.text, type );
> >>>>>       this.code = Py.compile( this.node, "<jython>" );
> >>>>>      
> >>>>>
> >>>
> >>>
> >>>  
> >>>
> >>
> >
>  



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