Following Willian's proposal,deleted the print function, which caused crashes.

The objects are now printed with the repr function.

source/blender/python/api2_2x/Build.c

@@ -44,7 +44,7 @@ PyTypeObject Build_Type =
   0,                                      /* tp_itemsize */
   /* methods */
   (destructor)BuildDeAlloc,              /* tp_dealloc */
-  (printfunc)BuildPrint,                 /* tp_print */
+  0,                 /* tp_print */
   (getattrfunc)BuildGetAttr,             /* tp_getattr */
   (setattrfunc)BuildSetAttr,             /* tp_setattr */
   0,                                      /* tp_compare */
@@ -72,7 +72,6 @@ int type =   EFF_BUILD;
   BPy_Effect    *pyeffect; 
   Effect      *bleffect = 0; 
   
-  printf ("In Effect_New()\n");
 
   bleffect = add_effect(type);
   if (bleffect == NULL) 
@@ -104,7 +103,6 @@ PyObject *M_Build_Get(PyObject *self, PyObject *args)
   Effect *eff;
   BPy_Build *wanted_eff;
   int num,i;
-  printf ("In Effect_Get()\n");
   if (!PyArg_ParseTuple(args, "si", &name, &num ))
     return(EXPP_ReturnPyObjError(PyExc_AttributeError,\
 				 "expected string int argument"));
@@ -267,11 +265,12 @@ int BuildSetAttr (BPy_Build *self, char *name, PyObject *value)
 /* Description: This is a callback function for the BPy_Build type. It         */
 /*              builds a meaninful string to 'print' build objects.          */
 /*****************************************************************************/
+/*
 int BuildPrint(BPy_Build *self, FILE *fp, int flags) 
 { 
   return 0;
 }
-
+*/
 /*****************************************************************************/
 /* Function:    BuildRepr                                                    */
 /* Description: This is a callback function for the BPy_Build type. It         */
@@ -279,14 +278,13 @@ int BuildPrint(BPy_Build *self, FILE *fp, int flags)
 /*****************************************************************************/
 PyObject *BuildRepr (BPy_Build *self) 
 {
-  return 0;
+  return PyString_FromString("Build effect");
 }
 
 PyObject* BuildCreatePyObject (struct Effect *build)
 {
  BPy_Build    * blen_object;
 
-    printf ("In BuildCreatePyObject\n");
 
     blen_object = (BPy_Build*)PyObject_NEW (BPy_Build, &Build_Type);
 

source/blender/python/api2_2x/Build.h

@@ -111,7 +111,7 @@ static PyMethodDef BPy_Build_methods[] = {
 /* Python Build_Type callback function prototypes:                           */
 /*****************************************************************************/
 void BuildDeAlloc (BPy_Build *msh);
-int BuildPrint (BPy_Build *msh, FILE *fp, int flags);
+//int BuildPrint (BPy_Build *msh, FILE *fp, int flags);
 int BuildSetAttr (BPy_Build *msh, char *name, PyObject *v);
 PyObject *BuildGetAttr (BPy_Build *msh, char *name);
 PyObject *BuildRepr (BPy_Build *msh);

source/blender/python/api2_2x/Effect.c

@@ -271,6 +271,7 @@ int EffectSetAttr (BPy_Effect *self, char *name, PyObject *value)
 /* Description: This is a callback function for the BPy_Effect type. It        */
 /*              builds a meaninful string to 'print' effcte objects.         */
 /*****************************************************************************/
+/*
 int EffectPrint(BPy_Effect *self, FILE *fp, int flags) 
 { 
 if (self->effect->type == EFF_BUILD)puts("Effect Build");
@@ -279,12 +280,13 @@ if (self->effect->type == EFF_WAVE)puts("Effect Wave");
  
   return 0;
 }
-
+*/
 /*****************************************************************************/
 /* Function:    EffectRepr                                                   */
 /* Description: This is a callback function for the BPy_Effect type. It        */
 /*              builds a meaninful string to represent effcte objects.       */
 /*****************************************************************************/
+
 PyObject *EffectRepr (BPy_Effect *self) 
 {
 char*str="";

source/blender/python/api2_2x/Effect.h

@@ -72,7 +72,7 @@ PyObject *M_Effect_Get (PyObject *self, PyObject *args);
 /* Python Effect_Type callback function prototypes:                          */
 /*****************************************************************************/
 void EffectDeAlloc (BPy_Effect *msh);
-int EffectPrint (BPy_Effect *msh, FILE *fp, int flags);
+//int EffectPrint (BPy_Effect *msh, FILE *fp, int flags);
 int EffectSetAttr (BPy_Effect *msh, char *name, PyObject *v);
 PyObject *EffectGetAttr (BPy_Effect *msh, char *name);
 PyObject *EffectRepr (BPy_Effect *msh);
@@ -91,7 +91,7 @@ static PyTypeObject Effect_Type =
   0,                                      /* tp_itemsize */
   /* methods */
   (destructor)EffectDeAlloc,              /* tp_dealloc */
-  (printfunc)EffectPrint,                 /* tp_print */
+  0,                 /* tp_print */
   (getattrfunc)EffectGetAttr,             /* tp_getattr */
   (setattrfunc)EffectSetAttr,             /* tp_setattr */
   0,                                      /* tp_compare */

source/blender/python/api2_2x/Ipo.c

@@ -442,12 +442,13 @@ static int IpoSetAttr (C_Ipo *self, char *name, PyObject *value)
 /* Description: This is a callback function for the C_Ipo type. It        */
 /*              builds a meaninful string to 'print' ipo objects.         */
 /*****************************************************************************/
+/*
 static int IpoPrint(C_Ipo *self, FILE *fp, int flags)
 { 
   fprintf(fp, "[Ipo \"%s\"]", self->ipo->id.name+2);
   return 0;
 }
-
+*/
 /*****************************************************************************/
 /* Function:    IpoRepr                                                      */
 /* Description: This is a callback function for the C_Ipo type. It           */
@@ -455,7 +456,7 @@ static int IpoPrint(C_Ipo *self, FILE *fp, int flags)
 /*****************************************************************************/
 static PyObject *IpoRepr (C_Ipo *self)
 {
-  return PyString_FromString(self->ipo->id.name+2);
+  return PyString_FromFormat("[Ipo \"%s\"]", self->ipo->id.name+2);
 }
 
 /* Three Python Ipo_Type helper functions needed by the Object module: */

source/blender/python/api2_2x/Ipo.h

@@ -144,7 +144,7 @@ static PyMethodDef C_Ipo_methods[] = {
 /* Python Ipo_Type callback function prototypes:                          */
 /*****************************************************************************/
 static void IpoDeAlloc (C_Ipo *self);
-static int IpoPrint (C_Ipo *self, FILE *fp, int flags);
+//static int IpoPrint (C_Ipo *self, FILE *fp, int flags);
 static int IpoSetAttr (C_Ipo *self, char *name, PyObject *v);
 static PyObject *IpoGetAttr (C_Ipo *self, char *name);
 static PyObject *IpoRepr (C_Ipo *self);
@@ -161,7 +161,7 @@ PyTypeObject Ipo_Type =
   0,                                      /* tp_itemsize */
   /* methods */
   (destructor)IpoDeAlloc,              /* tp_dealloc */
-  (printfunc)IpoPrint,                 /* tp_print */
+  0,                 /* tp_print */
   (getattrfunc)IpoGetAttr,             /* tp_getattr */
   (setattrfunc)IpoSetAttr,             /* tp_setattr */
   0,                                      /* tp_compare */

source/blender/python/api2_2x/Metaball.c

@@ -44,7 +44,7 @@ PyTypeObject Metaball_Type =
 		0,                                      /* tp_itemsize */
 		/* methods */
 		(destructor)MetaballDeAlloc,              /* tp_dealloc */
-		(printfunc)MetaballPrint,                 /* tp_print */
+		0,                 /* tp_print */
 		(getattrfunc)MetaballGetAttr,             /* tp_getattr */
 		(setattrfunc)MetaballSetAttr,             /* tp_setattr */
 		0,                                      /* tp_compare */
@@ -671,13 +671,14 @@ static void MetaballDeAlloc (BPy_Metaball *self)
 {
   PyObject_DEL (self);
 }
-
+/*
 static int MetaballPrint (BPy_Metaball *self, FILE *fp, int flags)
 {
   fprintf(fp, "[MetaBall \"%s\"]", self->metaball->id.name+2);
   return 0;
 
 }
+*/
 /*****************************************************************************/
 /* Function:    MetaballGetAttr                                              */
 /* Description: This is a callback function for the BPy_Metaball type. It is   */
@@ -739,6 +740,6 @@ static int MetaballSetAttr (BPy_Metaball *self, char *name, PyObject *value)
 /*****************************************************************************/
 static PyObject *MetaballRepr (BPy_Metaball *self)
 {
-  return PyString_FromString(self->metaball->id.name+2);
+  return PyString_FromFormat("[Metaball \"%s\"]", self->metaball->id.name+2);
 }
 

source/blender/python/api2_2x/Metaball.h

@@ -186,7 +186,7 @@ static PyMethodDef BPy_Metaball_methods[] = {
 /* Python Metaball_Type callback function prototypes:                          */
 /*****************************************************************************/
 static void MetaballDeAlloc (BPy_Metaball *self);
-static int MetaballPrint (BPy_Metaball *self, FILE *fp, int flags);
+//static int MetaballPrint (BPy_Metaball *self, FILE *fp, int flags);
 static int MetaballSetAttr (BPy_Metaball *self, char *name, PyObject *v);
 static PyObject *MetaballGetAttr (BPy_Metaball *self, char *name);
 static PyObject *MetaballRepr (BPy_Metaball *self);

source/blender/python/api2_2x/Particle.c

@@ -137,7 +137,7 @@ PyTypeObject Particle_Type =
   0,                                    
 
   (destructor)ParticleDeAlloc,           
-  (printfunc)ParticlePrint,               
+  0,               
   (getattrfunc)ParticleGetAttr,           
   (setattrfunc)ParticleSetAttr,        
   0,                                     
@@ -573,8 +573,6 @@ PyObject *Particle_setForce(BPy_Particle *self,PyObject *args)
 	val[0] = PyFloat_AsDouble(PyTuple_GetItem(args,0));
 	val[1] = PyFloat_AsDouble(PyTuple_GetItem(args,1));
 	val[2] = PyFloat_AsDouble(PyTuple_GetItem(args,2));
-	printf("In Particle_setForce %f %f %f \n",val[0],val[1],val[2]);
-	printf("%d  %d \n",PyTuple_Check(args),PyTuple_Size(args));
 	/*
 	if (!PyArg_ParseTuple(args, "fff", val,val+1,val+2 ))
     return(EXPP_ReturnPyObjError(PyExc_AttributeError,\
@@ -859,12 +857,13 @@ int ParticleSetAttr (BPy_Particle *self, char *name, PyObject *value)
 /* Description: This is a callback function for the BPy_Particle type. It      */
 /*              particles a meaninful string to 'print' particle objects.    */
 /*****************************************************************************/
+/*
 int ParticlePrint(BPy_Particle *self, FILE *fp, int flags) 
 { 
   printf("Hi, I'm a particle!");	
   return 0;
 }
-
+*/
 /*****************************************************************************/
 /* Function:    ParticleRepr                                                 */
 /* Description: This is a callback function for the BPy_Particle type. It      */

source/blender/python/api2_2x/Particle.h

@@ -107,7 +107,7 @@ PyObject *Particle_setDefvec(BPy_Particle *self,PyObject*a);
 /* Python Particle_Type callback function prototypes:                        */
 /*****************************************************************************/
 void ParticleDeAlloc (BPy_Particle *msh);
-int ParticlePrint (BPy_Particle *msh, FILE *fp, int flags);
+//int ParticlePrint (BPy_Particle *msh, FILE *fp, int flags);
 int ParticleSetAttr (BPy_Particle *msh, char *name, PyObject *v);
 PyObject *ParticleGetAttr (BPy_Particle *msh, char *name);
 PyObject *ParticleRepr (BPy_Particle *msh);

source/blender/python/api2_2x/World.c

@@ -73,7 +73,7 @@ PyTypeObject World_Type =
   0,                                      /* tp_itemsize */
   /* methods */
   (destructor)World_DeAlloc,             /* tp_dealloc */
-  (printfunc)World_Print,                /* tp_print */
+  0,                /* tp_print */
   (getattrfunc)World_GetAttr,            /* tp_getattr */
   (setattrfunc)World_SetAttr,            /* tp_setattr */
   (cmpfunc)World_Compare,                /* tp_compare */
@@ -838,11 +838,13 @@ static int World_Compare (BPy_World *a, BPy_World *b)
  * World.  It builds a string with the name of the wrapped Blender World.
  */
 
+/*
 static int World_Print(BPy_World *self, FILE *fp, int flags)
 { 
   fprintf(fp, "[World \"%s\"]", self->world->id.name+2);
   return 0;
 }
+*/
 
 /**
  * \brief The World PyType repr callback
@@ -853,7 +855,7 @@ static int World_Print(BPy_World *self, FILE *fp, int flags)
 
 static PyObject *World_Repr (BPy_World *self)
 {
-  return PyString_FromString(self->world->id.name+2);
+  return PyString_FromFormat("[World \"%s\"]", self->world->id.name+2);
 }
 
 /*@}*/