python_utils.c

minimal python variant for small footprint apps like embedded apps

#include "Python.h"
#include <PalmOS.h>
#include "palmglue.h"
#include "palm_lib.h"

#include "dbmem.h"


int initialize_FrozenModules();
int cleanup_FrozenModules();
extern struct _frozen _PyImport_FrozenModules[];

void python_init() {

	int verbose = 0;
	int res;


	if (dbmem_init() == -1)
	     printf("problem with initializing scratch database\n");


	DMESSAGE("starting python_init");

	DMESSAGE("before set_flags");
	set_flags(0, /* debug */
		  verbose, /* verbose */
		  0, /* interactive */
		  1, /* no site */
		  0, /* use class exceptions */
		  1, /* frozen */
		  0 /* optimize */
		  );


	DMESSAGE("before initialize_FrozenModules");
	res = initialize_FrozenModules();
	ErrFatalDisplayIf( !res, "Problem with loading frozen modules");

	/* put the following statement in frozenmodule_importer */

	DMESSAGE("before set_frozen_tab");
	set_frozen_tab(_PyImport_FrozenModules);

	DMESSAGE("before Py_Initialize()");
	Py_Initialize();

	fprintf(stderr, "Python %s\n%s\n\n",
		Py_GetVersion(), Py_GetCopyright());
	
	PySys_SetArgv(0, NULL);
	
}

void python_finalize(){
	int res;
	Py_Finalize();
	
	DMESSAGE("before cleanup_FrozenModules()");
	res = cleanup_FrozenModules();
	ErrFatalDisplayIf( !res,
			   "Problem during frozen module cleanup");

	DMESSAGE("done python_finalize");

	if (dbmem_fini() == -1)
	     printf("problem cleaning up scratch database\n");

}