[SymbianTH]

Hi

I am writnig .Pyd(DLL) code. (using Symbian S60 3rd edition FP1 and Pys60 1.9.5).
I attached .py file. From this file i call .pyd file.

When i click on "Call DLL" from option menu emulator display panic
KERN EXCE 3. Please help me where i am doing mistake? Please.

#include <e32std.h>
#include <e32cmn.h>
#include <stdio.h>
#include <stdlib.h>
#include <Python.h>
#include <symbian_python_ext_util.h>

#define MODULE_NAME sdk12graphics //:ulwp COMP_NAME
#define MODULE_NAME_STRING "sdk12graphics" //:usp COMP_NAME.inspect
#define MODULE_INIT_FUNC initsdk12graphics //:ulwp 'init' + COMP_NAME

static PyObject *sdk12graphics_InitControlL(PyObject *self, PyObject *args);
static int InitControlL(TPtrC& aUrl);

static int InitControlL(TPtrC& aUrl)
	{
	return 1;
	}

static PyObject *sdk12graphics_InitControlL(PyObject *self, PyObject *args)
	{
	TInt error;	
	char* b;
	int l;
	
	if (!PyArg_ParseTuple(args, "u#", &b, &l))
		{
			//Py_INCREF(Py_None);
			return SPyErr_SetFromSymbianOSErr(error); //Py_None;
		}
	
	TPtrC aUrl((TUint16*)b, l);
		
	return Py_BuildValue("i",InitControlL(aUrl));
	}

static const PyMethodDef sdk12graphics_methods[] =
{
	{"initializecontroll", (PyCFunction)sdk12graphics_InitControlL, METH_VARARGS, "Returns a CObject with a CFbsBitmap*"},
	{NULL, NULL} /* sentinel */
};

#define METHOD_TABLE const_cast<PyMethodDef*>(&sdk12graphics_methods[0])

extern "C" {
	DL_EXPORT(void) MODULE_INIT_FUNC(void)
	{
	// Add extra initialization here
	PyObject* module = Py_InitModule(MODULE_NAME_STRING, METHOD_TABLE);
	if (!module)
		{
		return;
		}
	}
}

#ifndef EKA2
GLDEF_C TInt E32Dll(TDllReason)
	{
	return KErrNone;
	}
#endif

.mmp File

TARGET		  _pythondll.pyd
TARGETTYPE	  dll
UID			 0x1000008d 0xEE402E33

#ifdef EKA2
CAPABILITY  NetworkServices LocalServices ReadUserData WriteUserData UserEnvironment
#endif

USERINCLUDE	 ..\inc
SYSTEMINCLUDE   \epoc32\include 
SYSTEMINCLUDE	\epoc32\include\libc
SYSTEMINCLUDE   \epoc32\include\python

TARGETPATH \system\libs

nostrictdef

LIBRARY		 euser.lib
LIBRARY 	 fbscli.lib
LIBRARY 	 estlib.lib
LIBRARY		 python_appui.lib
LIBRARY		 python222.lib
LIBRARY		 python25.lib 
LIBRARY      estlib.lib /* Necessary only if you use the C standard library */
LIBRARY      apgrfx.lib 
LIBRARY      eikcore.lib 
LIBRARY      ws32.lib 
LIBRARY      cone.lib

#ifdef ENABLE_ABIV2_MODE
DEBUGGABLE_UDEBONLY
#endif

SOURCEPATH	  ..\src
SOURCE PythonDLL.cpp

Regards,
SymbianTH

[SymbianTH]

Hi

I put my File in following path:
_pythondll.pyd : C:\Symbian\9.2\S60_3rd_FP1\Epoc32\winscw\c\sys
DetectSymbian : C:\Symbian\9.2\S60_3rd_FP1_4\Epoc32\winscw\c\Data\python

My .Pyd File Code is:

from graphics import *

import appuifw
import e32

class BabelFishUI(object):
    
    def __init__(self):
        
        self.__lock = e32.Ao_lock()
        self.__img = Image.new((176, 144))
        self.__language = 'it_en'
        self.__textUI = None
        
        appuifw.app.exit_key_handler = lambda:self.__lock.signal()
        
        appuifw.app.title = u'BabelFish v1.0'
        appuifw.app.body = self.__canvas = appuifw.Canvas(redraw_callback=self.updateScreen)
        
        appuifw.app.menu = [(u'Translate', lambda:self.__translateUI()), (u'Call DLL', lambda:self.__CallDLL()), (u'About', lambda:appuifw.note(u'BabelFish: v1.0", "Created by\nWhite Tiger\n<Z-TEAM@Libero.it>', 'info')), (u'Exit', lambda:self.__lock.signal)]
        
        self.updateScreen(None)
        
        self.__menuMain = appuifw.app.menu
        self.__bgMain = appuifw.app.body
        
        self.__lock.wait()
    
    def updateScreen(self, rect):
        
        self.__canvas.blit(self.__img)
.
.
.
    def __CallDLL(self):
        
        if e32.pys60_version_info > (1,9):
            # PyS60 1.9.x and above
    		appuifw.note(u"1.9.x")
        else:
            # Pys60 1.4.x or below
            appuifw.note(u"1.4.x")

        #appuifw.note(u'CallDLL", " Now write code for call Symbian DLL', 'info')
        if e32.s60_version_info>=(3,0):
            # Symbian 9.0 way to import things
            import imp
            _pythondll=imp.load_dynamic('_pythondll', 'c:\\sys\\_pythondll.pyd')   
        else:
            # Old way
            import _pythondll
.
.
.
   
</BabelFishUI>

if __name__ == '__main__':
    
    BabelFishUI()

[nirpsis]

This panic is raised when completing an outstanding request to a logical channel; the panic occurs when the request number is invalid. Specifically, the panic occurs in a call to the Complete() member function of a DLogicalChannel.

Try making a standalone which calls the pyd and test on a real device. This panic is raised in debug builds only.

[mahesh.sayibabu]

Since you are developing an extension for PyS60 1.9.6, you should not link against `python222.lib`. Remove this entry from the MMP file. Also, wondering why you need to link against `python_appui.lib`.

[mahesh.sayibabu]

Also, the PYD name should be in a specific format: kf_<module_name>.pyd
For example, if your module name is `sdk12graphics', the pyd name in the mmp file should be as follows:

.MMP file

TARGET		kf_sdk12graphics.pyd

Suggest you to take a look at the 'Extending and Embedding PyS60' chapter in the PyS60 documentation.

[SymbianTH]

Originally Posted by mahesh.sayibabu

Also, the PYD name should be in a specific format: kf_<module_name>.pyd
For example, if your module name is `sdk12graphics', the pyd name in the mmp file should be as follows:

.MMP file

TARGET		kf_sdk12graphics.pyd

Suggest you to take a look at the 'Extending and Embedding PyS60' chapter in the PyS60 documentation.

Hi
Thank you for your response.

I tested in Nokia E71x (3rd edition FP1) attached application code(example.sisx).

I do that way which you suggest me look in example application
but now give me an error named:
"example=imp.load_dynamic('example','C:\\sys\\bin\\kf_example.pyd") ImportError:dlopen:Load failed"

Please help me again.

Regards,
SymbianTH

[mahesh.sayibabu]

1. example.c, replace these lines

DL_EXPORT(void) initexample(void) {
	Py_InitModule("example", example_methods);
}

with,

DL_EXPORT(void) initexample(void) {
	Py_InitModule("_example", example_methods); //note the change in module name, basically it is better to name pyd and its wrapper (.py file) with different names.
}

2. example.mmp, replace

TARGET		kf_example.pyd
TARGETPATH	\system\libs

with

TARGET		kf__example.pyd // kf_<module_name>.pyd => kf__example.pyd
// TARGETPATH	\system\libs    // Remove this entry, the pyd will be created in \epoc32\release\<platform>\<build>\

3. example.py, you really don't need to import this way

if e32.s60_version_info>=(3,0):
    import imp
    example=imp.load_dynamic('example', 'c:\\sys\\bin\\kf_example.pyd')
    
else:
    import example

This is sufficient

import _example

You also need to export the module init function at ordinal 1. Have a .def file for this purpose.
Take a look at the example code of a simple extension module, elemlist present under extras\elemlist of PyS60 source tree.

[SymbianTH]

Originally Posted by mahesh.sayibabu

1. example.c, replace these lines

DL_EXPORT(void) initexample(void) {
	Py_InitModule("example", example_methods);
}

with,

DL_EXPORT(void) initexample(void) {
	Py_InitModule("_example", example_methods); //note the change in module name, basically it is better to name pyd and its wrapper (.py file) with different names.
}

2. example.mmp, replace

TARGET		kf_example.pyd
TARGETPATH	\system\libs

with

TARGET		kf__example.pyd // kf_<module_name>.pyd => kf__example.pyd
// TARGETPATH	\system\libs    // Remove this entry, the pyd will be created in \epoc32\release\<platform>\<build>\

3. example.py, you really don't need to import this way

if e32.s60_version_info>=(3,0):
    import imp
    example=imp.load_dynamic('example', 'c:\\sys\\bin\\kf_example.pyd')
    
else:
    import example

This is sufficient

import _example

You also need to export the module init function at ordinal 1. Have a .def file for this purpose.
Take a look at the example code of a simple extension module, elemlist present under extras\elemlist of PyS60 source tree.

Hi

Thanks for give me snippets and for your help.

I have done all change as you told me but than also do not work this.

When i type on interactive script
>> import _example
give me error like this name module not find in python25\python25.zip\...

i tried with all commands like
>> import _example
>> import kf__example
>> import __example

but gives me same error. I tested on N73 also.

Rgards,
SymbianTH

[mahesh.sayibabu]

Strange!
'import _example' should have worked. Hope the PYD is packaged and installed on the device.

Try to compile and import elemlist module, present under extras\elemlist of PyS60 source tree. If this works, then you can easily modify it and add the functionality that you want your module to do.

[ashwinurao]

Originally Posted by SymbianTH

Hi

Thanks for give me snippets and for your help.

I have done all change as you told me but than also do not work this.

When i type on interactive script
>> import _example
give me error like this name module not find in python25\python25.zip\...

i tried with all commands like
>> import _example
>> import kf__example
>> import __example

but gives me same error. I tested on N73 also.

Rgards,
SymbianTH

Check the capabilities of this example PYD. It should be equal or higher than that of ScriptShell.