fixed rich comparison method in Symbol class

fix for OSX
small cosmetic fixes
enable compiled-only scripts (without .py)
small changes for numpy support
fix for numpy headers on OS X
fix for numpy
added xcode 2.4 project
added pyext._list and pyext._tuple to convert input lists to Python sequence objects
fix numpy et al
enable module packages (module/__init__.py[co]), now also for Max

svn path=/trunk/; revision=7370

1 files changed, 793 insertions, 791 deletions

diff --git a/externals/grill/py/source/pybuffer.cpp b/externals/grill/py/source/pybuffer.cpp
index 15b64c6d..c375aa63 100644
--- a/externals/grill/py/source/pybuffer.cpp
+++ b/externals/grill/py/source/pybuffer.cpp
@@ -1,791 +1,793 @@
-/* 

-

-py/pyext - python script object for PD and Max/MSP

-

-Copyright (c)2002-2005 Thomas Grill (gr@grrrr.org)

-For information on usage and redistribution, and for a DISCLAIMER OF ALL

-WARRANTIES, see the file, "license.txt," in this distribution.  

-

-*/

-

-#include "pybase.h"

-

-#undef PY_ARRAYS

-

-

-#if defined(PY_NUMERIC) || defined(PY_NUMPY)

-    #define PY_ARRAYS 1

-#elif defined(PY_NUMARRAY)

-    #define PY_ARRAYS 1

-    #define NA

-#endif

-

-#ifdef PY_ARRAYS

-

-#ifdef NA

-    #if FLEXT_OS == FLEXT_OS_MAC

-    #include <Python/numarray/libnumarray.h>

-    #else

-    #include <numarray/libnumarray.h>

-    #endif

-

-static NumarrayType numtype = tAny;

-inline bool arrsupport() { return numtype != tAny; }

-

-#else

-    #if FLEXT_OS == FLEXT_OS_MAC

-    #include <Python/numarray/arrayobject.h>

-    #else

-    #include <numarray/arrayobject.h>

-    #endif

-

-static PyArray_TYPES numtype = PyArray_NOTYPE;

-inline bool arrsupport() { return numtype != PyArray_NOTYPE; }

-#endif

-#endif

-

-

-PyObject *pybase::py_arraysupport(PyObject *self,PyObject *args)

-{

-	PyObject *ret;

-#ifdef PY_ARRAYS

-	ret = Py_True;

-#else

-	ret = Py_False;

-#endif

-	Py_INCREF(ret);

-	return ret;

-}

-

-

-// PD defines a T_OBJECT symbol

-#undef T_OBJECT

-

-#if FLEXT_OS == FLEXT_OS_MAC

-#include "Python/bufferobject.h"

-#include "Python/structmember.h"

-#else

-#include "bufferobject.h"

-#include "structmember.h"

-#endif

-

-static PyObject *buffer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)

-{

-    pySamplebuffer *self = (pySamplebuffer *)pySamplebuffer_Type.tp_alloc(&pySamplebuffer_Type, 0);

-    self->sym = NULL;

-    self->buf = NULL;

-    self->dirty = false;

-    return (PyObject *)self;

-}

-

-static void buffer_dealloc(PyObject *obj)

-{

-    pySamplebuffer *self = (pySamplebuffer *)obj;

-

-    if(self->buf) {

-        self->buf->Unlock(self->lock);

-        if(self->dirty) self->buf->Dirty(true);

-        delete self->buf;

-    }

-

-    obj->ob_type->tp_free(obj);

-}

-

-static int buffer_init(PyObject *obj, PyObject *args, PyObject *kwds)

-{

-    FLEXT_ASSERT(pySamplebuffer_Check(obj));

-

-    PyObject *arg = PySequence_GetItem(args,0); // new reference

-    if(!arg) return -1;

-

-    int ret = 0;

-

-    pySamplebuffer *self = (pySamplebuffer *)obj;

-    FLEXT_ASSERT(!self->sym && !self->buf);

-

-    if(pySymbol_Check(arg))

-        self->sym = pySymbol_AS_SYMBOL(arg);

-    else if(PyString_Check(arg))

-        self->sym = flext::MakeSymbol(PyString_AS_STRING(arg));

-    else

-        ret = -1;

-    Py_DECREF(arg);

-

-    if(self->sym) {

-        flext::buffer *b = new flext::buffer(self->sym);

-        if(b->Ok() && b->Valid())

-            self->lock = (self->buf = b)->Lock();

-        else

-            delete b;

-    }

-

-    return ret;

-}

-

-static PyObject *buffer_repr(PyObject *self)

-{

-    FLEXT_ASSERT(pySamplebuffer_Check(self));

-    return (PyObject *)PyString_FromFormat("<Samplebuffer %s>",pySamplebuffer_AS_STRING(self));

-}

-

-static long buffer_hash(PyObject *self)

-{

-    FLEXT_ASSERT(pySamplebuffer_Check(self));

-    return (long)(((pySamplebuffer *)self)->buf);

-}

-

-static PyObject *buffer_getsymbol(pySamplebuffer* self,void *closure)

-{

-    if(self->sym)

-        return pySymbol_FromSymbol(self->sym);

-    else {

-        Py_INCREF(Py_None);

-        return Py_None;

-    }

-}

-

-static PyGetSetDef buffer_getseters[] = {

-    {"symbol",(getter)buffer_getsymbol, NULL, NULL},

-    {NULL}  /* Sentinel */

-};

-

-static PyObject *buffer_dirty(PyObject *obj)

-{

-    ((pySamplebuffer *)obj)->dirty = true;

-    Py_INCREF(Py_None);

-    return Py_None;

-}

-

-static PyObject *buffer_resize(PyObject *obj,PyObject *args,PyObject *kwds)

-{

-    flext::buffer *b = ((pySamplebuffer *)obj)->buf;

-    if(b) {

-        int frames,keep = 1,zero = 1;

-        static char *kwlist[] = {"frames", "keep", "zero", NULL};

-        if(!PyArg_ParseTupleAndKeywords(args, kwds, "i|ii", kwlist, &frames, &keep, &zero)) 

-            return NULL; 

-

-        b->Frames(frames,keep != 0,zero != 0);

-

-        Py_INCREF(obj);

-        return obj;

-    }

-    else {

-		PyErr_SetString(PyExc_RuntimeError,"Invalid buffer");

-        return NULL;

-    }

-}

-

-static PyMethodDef buffer_methods[] = {

-    {"dirty", (PyCFunction)buffer_dirty,METH_NOARGS,"Mark buffer as dirty"},

-    {"resize", (PyCFunction)buffer_resize,METH_VARARGS|METH_KEYWORDS,"Resize buffer"},

-    {NULL}  /* Sentinel */

-};

-

-

-

-// support the buffer protocol

-static int buffer_readbuffer(PyObject *obj, int segment, void **ptrptr)

-{

-    flext::buffer *b = ((pySamplebuffer *)obj)->buf;

-    ptrptr[0] = b->Data();

-    return b->Channels()*b->Frames()*sizeof(t_sample);

-}

-

-static int buffer_writebuffer(PyObject *obj, int segment, void **ptrptr)

-{

-    flext::buffer *b = ((pySamplebuffer *)obj)->buf;

-    ptrptr[0] = b->Data();

-    return b->Channels()*b->Frames()*sizeof(t_sample);

-}

-

-static int buffer_segcount(PyObject *obj, int *lenp)

-{

-    flext::buffer *b = ((pySamplebuffer *)obj)->buf;

-    if(lenp) lenp[0] = b->Channels()*b->Frames()*sizeof(t_sample);

-    return 1;

-}

-

-static int buffer_charbuffer(PyObject *obj, int segment, const char **ptrptr)

-{

-    flext::buffer *b = ((pySamplebuffer *)obj)->buf;

-    ptrptr[0] = (char *)b->Data();

-    return b->Channels()*b->Frames()*sizeof(t_sample);

-}

-

-static PyBufferProcs buffer_as_buffer = {

-    buffer_readbuffer,

-    buffer_writebuffer,

-    buffer_segcount,

-    buffer_charbuffer

-};

-

-static int buffer_length(pySamplebuffer *self)

-{

-    return self->buf?self->buf->Frames():0;

-}

-

-static PyObject *buffer_item(pySamplebuffer *self, int i)

-{

-    PyObject *ret;

-    if(self->buf) {

-	    if (i < 0 || i >= self->buf->Frames()) {

-		    PyErr_SetString(PyExc_IndexError,"Index out of range");

-		    ret = NULL;

-	    }

-        else {

-            if(self->buf->Channels() == 1)

-                ret = PyFloat_FromDouble(self->buf->Data()[i]);

-            else {

-		        PyErr_SetString(PyExc_NotImplementedError,"Multiple channels not implemented yet");

-		        ret = NULL;

-            }

-        }

-    }

-    else {

-        Py_INCREF(Py_None);

-        ret = Py_None;

-    }

-	return ret;

-}

-

-PyObject *arrayfrombuffer(PyObject *buf,int c,int n)

-{

-#ifdef PY_ARRAYS

-    if(arrsupport()) {

-        PyObject *arr;

-        int shape[2];

-        shape[0] = n;

-        shape[1] = c;

-#ifdef NA

-        arr = (PyObject *)NA_NewAllFromBuffer(c == 1?1:2,shape,numtype,buf,0,0,NA_ByteOrder(),1,1);

-#else

-        void *data;

-        int len;

-        int err = PyObject_AsWriteBuffer(buf,&data,&len);

-        if(!err) {

-            FLEXT_ASSERT(len <= n*c*sizeof(t_sample));

-            Py_INCREF(buf);

-            arr = PyArray_FromDimsAndData(c == 1?1:2,shape,numtype,(char *)data);

-        }

-        else {

-            // exception string is already set

-            arr = NULL;

-        }

-#endif

-        return arr;

-    }

-    else

-#endif

-    return NULL;

-}

-

-static PyObject *buffer_slice(pySamplebuffer *self,int ilow = 0,int ihigh = 1<<(sizeof(int)*8-2))

-{

-    PyObject *ret;

-#ifdef PY_ARRAYS

-    if(arrsupport()) {

-        if(self->buf) {

-            const int n = self->buf->Frames();

-            const int c = self->buf->Channels();

-            if(ilow < 0) ilow += n;

-            if(ilow >= n) ilow = n-1;

-            if(ihigh < 0) ihigh += n;

-            if(ihigh > n) ihigh = n;

-

-            PyObject *nobj = arrayfrombuffer((PyObject *)self,c,n);

-            if(ilow != 0 || ihigh != n) {

-                ret = PySequence_GetSlice(nobj,ilow,ihigh);

-                Py_DECREF(nobj);

-            }

-            else

-                ret = nobj;

-        }

-        else {

-            Py_INCREF(Py_None);

-            ret = Py_None;

-        }

-    }

-    else 

-#endif

-    {

-        PyErr_SetString(PyExc_RuntimeError,"No numarray support");

-        ret = NULL;

-    }

-    return ret;

-}

-

-static int buffer_ass_item(pySamplebuffer *self,int i,PyObject *v)

-{

-    int ret;

-    if(self->buf) {

-	    if (i < 0 || i >= self->buf->Frames()) {

-		    PyErr_Format(PyExc_IndexError,"Index out of range");

-		    ret = -1;

-	    }

-        else {

-            if(self->buf->Channels() == 1) {

-                self->buf->Data()[i] = (t_sample)PyFloat_AsDouble(v);

-                if(PyErr_Occurred()) {

-                    // cast to double failed

-    		        PyErr_SetString(PyExc_TypeError,"Value must be a numarray");

-                    ret = -1;

-                }

-                else {

-                    self->dirty = true;

-                    ret = 0;

-                }

-            }

-            else {

-		        PyErr_SetString(PyExc_NotImplementedError,"Multiple channels not implemented yet");

-		        ret = -1;

-            }

-        }

-    }

-    else

-        ret = -1;

-	return ret;

-}

-

-static int buffer_ass_slice(pySamplebuffer *self,int ilow,int ihigh,PyObject *value)

-{

-    int ret;

-#ifdef PY_ARRAYS

-    if(arrsupport()) {

-        if(!value) {

-            PyErr_SetString(PyExc_TypeError,"Object doesn't support item deletion");

-            ret = -1;

-        }

-        else if(self->buf) {

-            const int n = self->buf->Frames();

-            const int c = self->buf->Channels();

-            if(ilow < 0) ilow += n;

-            if(ilow >= n) ilow = n-1;

-            if(ihigh < 0) ihigh += n;

-            if(ihigh > n) ihigh = n;

-

-#ifdef NA

-            PyArrayObject *out = NA_InputArray(value,numtype,NUM_C_ARRAY);

-#else

-            PyArrayObject *out = (PyArrayObject *)PyArray_ContiguousFromObject(value,numtype,0,0);

-#endif

-            if(!out) {

-                PyErr_SetString(PyExc_TypeError,"Assigned object must be a numarray");

-                ret = -1;

-            }

-            else if(out->nd != 1) {

-                PyErr_SetString(PyExc_NotImplementedError,"Multiple dimensions not supported yet");

-                ret = -1;

-            }

-            else {

-                int dlen = ihigh-ilow;

-                int slen = out->dimensions[0];

-#ifdef NA

-                flext::CopySamples(self->buf->Data()+ilow,(t_sample *)NA_OFFSETDATA(out),slen < dlen?slen:dlen);

-#else

-                flext::CopySamples(self->buf->Data()+ilow,(t_sample *)out->data,slen < dlen?slen:dlen);

-#endif

-                self->dirty = true;

-                ret = 0;

-            }

-

-            Py_XDECREF(out);

-        }

-        else {

-            PyErr_SetString(PyExc_ValueError,"Buffer is not assigned");

-            ret = -1;

-        }

-    }

-    else 

-#endif

-    {

-        PyErr_SetString(PyExc_RuntimeError,"No numarray support");

-        ret = -1;

-    }

-    return ret;

-}

-

-static PyObject *buffer_concat(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PySequence_Concat(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_repeat(pySamplebuffer *self,int rep)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PySequence_Repeat(nobj,rep);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-

-static PySequenceMethods buffer_as_seq = {

-	(inquiry)buffer_length,			/* inquiry sq_length;             __len__ */

-	(binaryfunc)buffer_concat,          /* __add__ */

-	(intargfunc)buffer_repeat,          /* __mul__ */

-	(intargfunc)buffer_item,			/* intargfunc sq_item;            __getitem__ */

-	(intintargfunc)buffer_slice,		 /* intintargfunc sq_slice;        __getslice__ */

-	(intobjargproc)buffer_ass_item,		/* intobjargproc sq_ass_item;     __setitem__ */

-	(intintobjargproc)buffer_ass_slice,	/* intintobjargproc sq_ass_slice; __setslice__ */

-};

-

-static PyObject *buffer_iter(PyObject *obj)

-{

-    pySamplebuffer *self = (pySamplebuffer *)obj;

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *it = PyObject_GetIter(nobj);

-        Py_DECREF(nobj);

-        return it;

-    }

-    else

-        return NULL;

-}

-

-

-static PyObject *buffer_add(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Add(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_subtract(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Subtract(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_multiply(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Multiply(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_divide(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Divide(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_remainder(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Remainder(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_divmod(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Divmod(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_power(pySamplebuffer *self,PyObject *op1,PyObject *op2)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Power(nobj,op1,op2);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_negative(pySamplebuffer *self)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Negative(nobj);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_pos(pySamplebuffer *self)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Positive(nobj);

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_absolute(pySamplebuffer *self)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_Absolute(nobj);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static int buffer_coerce(pySamplebuffer **pm, PyObject **pw) 

-{

-    if(pySamplebuffer_Check(*pw)) {

-        Py_INCREF(*pm);

-        Py_INCREF(*pw);

-    	return 0;

-    }

-    else

-        return 1;

-}

-	

-static PyObject *buffer_inplace_add(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlaceAdd(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_inplace_subtract(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlaceSubtract(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_inplace_multiply(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlaceMultiply(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_inplace_divide(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlaceDivide(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_inplace_remainder(pySamplebuffer *self,PyObject *op)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlaceRemainder(nobj,op);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-static PyObject *buffer_inplace_power(pySamplebuffer *self,PyObject *op1,PyObject *op2)

-{

-    PyObject *nobj = buffer_slice(self);

-    if(nobj) {

-        PyObject *ret = PyNumber_InPlacePower(nobj,op1,op2);

-        if(ret == nobj) self->dirty = true;

-        Py_DECREF(nobj);

-        return ret;

-    }

-    else

-        return NULL;

-}

-

-

-

-static PyNumberMethods buffer_as_number = {

-	(binaryfunc)buffer_add, /*nb_add*/

-	(binaryfunc)buffer_subtract, /*nb_subtract*/

-	(binaryfunc)buffer_multiply, /*nb_multiply*/

-	(binaryfunc)buffer_divide, /*nb_divide*/

-	(binaryfunc)buffer_remainder, /*nb_remainder*/

-	(binaryfunc)buffer_divmod, /*nb_divmod*/

-	(ternaryfunc)buffer_power, /*nb_power*/

-	(unaryfunc)buffer_negative, 

-	(unaryfunc)buffer_pos, /*nb_pos*/ 

-	(unaryfunc)buffer_absolute, /* (unaryfunc)buffer_abs,  */

-	0, //(inquiry)buffer_nonzero, /*nb_nonzero*/

-	0,		/*nb_invert*/

-	0,		/*nb_lshift*/

-	0,		/*nb_rshift*/

-	0,		/*nb_and*/

-	0,		/*nb_xor*/

-	0,		/*nb_or*/

-	(coercion)buffer_coerce, /*nb_coerce*/

-	0, /*nb_int*/

-	0, /*nb_long*/

-	0, /*nb_float*/

-	0,		/*nb_oct*/

-	0,		/*nb_hex*/

-	(binaryfunc)buffer_inplace_add,		/* nb_inplace_add */

-	(binaryfunc)buffer_inplace_subtract,		/* nb_inplace_subtract */

-	(binaryfunc)buffer_inplace_multiply,		/* nb_inplace_multiply */

-	(binaryfunc)buffer_inplace_divide,		/* nb_inplace_divide */

-	(binaryfunc)buffer_inplace_remainder,		/* nb_inplace_remainder */

-	(ternaryfunc)buffer_inplace_power, 		/* nb_inplace_power */

-	0,		/* nb_inplace_lshift */

-	0,		/* nb_inplace_rshift */

-	0,		/* nb_inplace_and */

-	0,		/* nb_inplace_xor */

-	0,		/* nb_inplace_or */

-//	buffer_floor_div, /* nb_floor_divide */

-//	buffer_div,	/* nb_true_divide */

-//	buffer_inplace_floor_div,		/* nb_inplace_floor_divide */

-//	buffer_inplace_div,		/* nb_inplace_true_divide */

-};

-

-PyTypeObject pySamplebuffer_Type = {

-    PyObject_HEAD_INIT(NULL)

-    0,                         /*ob_size*/

-    "Buffer",              /*tp_name*/

-    sizeof(pySamplebuffer),          /*tp_basicsize*/

-    0,                         /*tp_itemsize*/

-    buffer_dealloc,            /*tp_dealloc*/

-    0,                         /*tp_print*/

-    0,                         /*tp_getattr*/

-    0,                         /*tp_setattr*/

-    0,            /*tp_compare*/

-    buffer_repr,               /*tp_repr*/

-    &buffer_as_number,                         /*tp_as_number*/

-    &buffer_as_seq,                 /*tp_as_sequence*/

-    0,                         /*tp_as_mapping*/

-    buffer_hash,               /*tp_hash */

-    0,                         /*tp_call*/

-    0,                         /*tp_str*/

-    0,                         /*tp_getattro*/

-    0,                         /*tp_setattro*/

-    &buffer_as_buffer,             /*tp_as_buffer*/

-    Py_TPFLAGS_DEFAULT /*| Py_TPFLAGS_BASETYPE*/,   /*tp_flags*/

-    "Samplebuffer objects",           /* tp_doc */

-    0,		               /* tp_traverse */

-    0,		               /* tp_clear */

-    0 /*buffer_richcompare*/,	       /* tp_richcompare */

-    0,		               /* tp_weaklistoffset */

-    buffer_iter,		               /* tp_iter */

-    0,		               /* tp_iternext */

-    buffer_methods,                          /* tp_methods */

-    0,            /* tp_members */

-    buffer_getseters,          /* tp_getset */

-    0,                         /* tp_base */

-    0,                         /* tp_dict */

-    0,                         /* tp_descr_get */

-    0,                         /* tp_descr_set */

-    0,                         /* tp_dictoffset */

-    buffer_init,            /* tp_init */

-    0,                         /* tp_alloc */

-    buffer_new,                 /* tp_new */

-};

-

-void initsamplebuffer()

-{

-    PyErr_Clear();

-

-#ifdef PY_ARRAYS

-#ifdef NA

-    import_libnumarray();

-#else

-    import_array();

-#endif

-    if(PyErr_Occurred())

-        // catch import error

-        PyErr_Clear();

-    else {

-        // numarray support ok

-#ifdef NA

-        numtype = sizeof(t_sample) == 4?tFloat32:tFloat64;

-#else

-        numtype = sizeof(t_sample) == 4?PyArray_FLOAT:PyArray_DOUBLE;

-#endif

-        post("");

-	    post("Python array support enabled");

-    }

-#endif

-

-    if(PyType_Ready(&pySamplebuffer_Type) < 0)

-        FLEXT_ASSERT(false);

-    else

-        Py_INCREF(&pySamplebuffer_Type);

-}

+/* 
+
+py/pyext - python script object for PD and Max/MSP
+
+Copyright (c)2002-2006 Thomas Grill (gr@grrrr.org)
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "license.txt," in this distribution.  
+
+*/
+
+#include "pybase.h"
+
+#undef PY_ARRAYS
+
+
+#if defined(PY_NUMERIC) || defined(PY_NUMPY) || defined(PY_NUMARRAY)
+    #define PY_ARRAYS 1
+#endif
+
+#ifdef PY_ARRAYS
+
+#ifdef PY_NUMARRAY
+#	if FLEXT_OS == FLEXT_OS_MAC
+#		include <Python/numarray/libnumarray.h>
+#	else
+#		include <numarray/libnumarray.h>
+#	endif
+
+static NumarrayType numtype = tAny;
+inline bool arrsupport() { return numtype != tAny; }
+
+#else
+#	if defined(PY_NUMPY)
+#		include <numpy/arrayobject.h>
+#	else
+#		if FLEXT_OS == FLEXT_OS_MAC
+#			include <Python/numarray/arrayobject.h>
+#		else
+#			include <numarray/arrayobject.h>
+#		endif
+#	endif
+
+	static PyArray_TYPES numtype = PyArray_NOTYPE;
+	inline bool arrsupport() { return numtype != PyArray_NOTYPE; }
+#endif
+#endif
+
+
+PyObject *pybase::py_arraysupport(PyObject *self,PyObject *args)
+{
+	PyObject *ret;
+#ifdef PY_ARRAYS
+	ret = Py_True;
+#else
+	ret = Py_False;
+#endif
+	Py_INCREF(ret);
+	return ret;
+}
+
+
+// PD defines a T_OBJECT symbol
+#undef T_OBJECT
+
+#if FLEXT_OS == FLEXT_OS_MAC
+#include "Python/bufferobject.h"
+#include "Python/structmember.h"
+#else
+#include "bufferobject.h"
+#include "structmember.h"
+#endif
+
+static PyObject *buffer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+    pySamplebuffer *self = (pySamplebuffer *)pySamplebuffer_Type.tp_alloc(&pySamplebuffer_Type, 0);
+    self->sym = NULL;
+    self->buf = NULL;
+    self->dirty = false;
+    return (PyObject *)self;
+}
+
+static void buffer_dealloc(PyObject *obj)
+{
+    pySamplebuffer *self = (pySamplebuffer *)obj;
+
+    if(self->buf) {
+        self->buf->Unlock(self->lock);
+        if(self->dirty) self->buf->Dirty(true);
+        delete self->buf;
+    }
+
+    obj->ob_type->tp_free(obj);
+}
+
+static int buffer_init(PyObject *obj, PyObject *args, PyObject *kwds)
+{
+    FLEXT_ASSERT(pySamplebuffer_Check(obj));
+
+    PyObject *arg = PySequence_GetItem(args,0); // new reference
+    if(!arg) return -1;
+
+    int ret = 0;
+
+    pySamplebuffer *self = (pySamplebuffer *)obj;
+    FLEXT_ASSERT(!self->sym && !self->buf);
+
+    if(pySymbol_Check(arg))
+        self->sym = pySymbol_AS_SYMBOL(arg);
+    else if(PyString_Check(arg))
+        self->sym = flext::MakeSymbol(PyString_AS_STRING(arg));
+    else
+        ret = -1;
+    Py_DECREF(arg);
+
+    if(self->sym) {
+        flext::buffer *b = new flext::buffer(self->sym);
+        if(b->Ok() && b->Valid())
+            self->lock = (self->buf = b)->Lock();
+        else
+            delete b;
+    }
+
+    return ret;
+}
+
+static PyObject *buffer_repr(PyObject *self)
+{
+    FLEXT_ASSERT(pySamplebuffer_Check(self));
+    return (PyObject *)PyString_FromFormat("<Samplebuffer %s>",pySamplebuffer_AS_STRING(self));
+}
+
+static long buffer_hash(PyObject *self)
+{
+    FLEXT_ASSERT(pySamplebuffer_Check(self));
+    return (long)(((pySamplebuffer *)self)->buf);
+}
+
+static PyObject *buffer_getsymbol(pySamplebuffer* self,void *closure)
+{
+    if(self->sym)
+        return pySymbol_FromSymbol(self->sym);
+    else {
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+}
+
+static PyGetSetDef buffer_getseters[] = {
+    {"symbol",(getter)buffer_getsymbol, NULL, NULL},
+    {NULL}  /* Sentinel */
+};
+
+static PyObject *buffer_dirty(PyObject *obj)
+{
+    ((pySamplebuffer *)obj)->dirty = true;
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+static PyObject *buffer_resize(PyObject *obj,PyObject *args,PyObject *kwds)
+{
+    flext::buffer *b = ((pySamplebuffer *)obj)->buf;
+    if(b) {
+        int frames,keep = 1,zero = 1;
+        static char *kwlist[] = {"frames", "keep", "zero", NULL};
+        if(!PyArg_ParseTupleAndKeywords(args, kwds, "i|ii", kwlist, &frames, &keep, &zero)) 
+            return NULL; 
+
+        b->Frames(frames,keep != 0,zero != 0);
+
+        Py_INCREF(obj);
+        return obj;
+    }
+    else {
+		PyErr_SetString(PyExc_RuntimeError,"Invalid buffer");
+        return NULL;
+    }
+}
+
+static PyMethodDef buffer_methods[] = {
+    {"dirty", (PyCFunction)buffer_dirty,METH_NOARGS,"Mark buffer as dirty"},
+    {"resize", (PyCFunction)buffer_resize,METH_VARARGS|METH_KEYWORDS,"Resize buffer"},
+    {NULL}  /* Sentinel */
+};
+
+
+
+// support the buffer protocol
+static int buffer_readbuffer(PyObject *obj, int segment, void **ptrptr)
+{
+    flext::buffer *b = ((pySamplebuffer *)obj)->buf;
+    ptrptr[0] = b->Data();
+    return b->Channels()*b->Frames()*sizeof(t_sample);
+}
+
+static int buffer_writebuffer(PyObject *obj, int segment, void **ptrptr)
+{
+    flext::buffer *b = ((pySamplebuffer *)obj)->buf;
+    ptrptr[0] = b->Data();
+    return b->Channels()*b->Frames()*sizeof(t_sample);
+}
+
+static int buffer_segcount(PyObject *obj, int *lenp)
+{
+    flext::buffer *b = ((pySamplebuffer *)obj)->buf;
+    if(lenp) lenp[0] = b->Channels()*b->Frames()*sizeof(t_sample);
+    return 1;
+}
+
+static int buffer_charbuffer(PyObject *obj, int segment, const char **ptrptr)
+{
+    flext::buffer *b = ((pySamplebuffer *)obj)->buf;
+    ptrptr[0] = (char *)b->Data();
+    return b->Channels()*b->Frames()*sizeof(t_sample);
+}
+
+static PyBufferProcs buffer_as_buffer = {
+    buffer_readbuffer,
+    buffer_writebuffer,
+    buffer_segcount,
+    buffer_charbuffer
+};
+
+static int buffer_length(pySamplebuffer *self)
+{
+    return self->buf?self->buf->Frames():0;
+}
+
+static PyObject *buffer_item(pySamplebuffer *self, int i)
+{
+    PyObject *ret;
+    if(self->buf) {
+	    if (i < 0 || i >= self->buf->Frames()) {
+		    PyErr_SetString(PyExc_IndexError,"Index out of range");
+		    ret = NULL;
+	    }
+        else {
+            if(self->buf->Channels() == 1)
+                ret = PyFloat_FromDouble(self->buf->Data()[i]);
+            else {
+		        PyErr_SetString(PyExc_NotImplementedError,"Multiple channels not implemented yet");
+		        ret = NULL;
+            }
+        }
+    }
+    else {
+        Py_INCREF(Py_None);
+        ret = Py_None;
+    }
+	return ret;
+}
+
+PyObject *arrayfrombuffer(PyObject *buf,int c,int n)
+{
+#ifdef PY_ARRAYS
+    if(arrsupport()) {
+        PyObject *arr;
+        int shape[2];
+        shape[0] = n;
+        shape[1] = c;
+#ifdef PY_NUMARRAY
+        arr = (PyObject *)NA_NewAllFromBuffer(c == 1?1:2,shape,numtype,buf,0,0,NA_ByteOrder(),1,1);
+#else
+        void *data;
+        int len;
+        int err = PyObject_AsWriteBuffer(buf,&data,&len);
+        if(!err) {
+            FLEXT_ASSERT(len <= n*c*sizeof(t_sample));
+            Py_INCREF(buf);
+			// \todo change to new API!
+            arr = PyArray_FromDimsAndData(c == 1?1:2,shape,numtype,(char *)data);
+        }
+        else {
+            // exception string is already set
+            arr = NULL;
+        }
+#endif
+        return arr;
+    }
+    else
+#endif
+    return NULL;
+}
+
+static PyObject *buffer_slice(pySamplebuffer *self,int ilow = 0,int ihigh = 1<<(sizeof(int)*8-2))
+{
+    PyObject *ret;
+#ifdef PY_ARRAYS
+    if(arrsupport()) {
+        if(self->buf) {
+            const int n = self->buf->Frames();
+            const int c = self->buf->Channels();
+            if(ilow < 0) ilow += n;
+            if(ilow >= n) ilow = n-1;
+            if(ihigh < 0) ihigh += n;
+            if(ihigh > n) ihigh = n;
+
+            PyObject *nobj = arrayfrombuffer((PyObject *)self,c,n);
+            if(ilow != 0 || ihigh != n) {
+                ret = PySequence_GetSlice(nobj,ilow,ihigh);
+                Py_DECREF(nobj);
+            }
+            else
+                ret = nobj;
+        }
+        else {
+            Py_INCREF(Py_None);
+            ret = Py_None;
+        }
+    }
+    else 
+#endif
+    {
+        PyErr_SetString(PyExc_RuntimeError,"No numarray support");
+        ret = NULL;
+    }
+    return ret;
+}
+
+static int buffer_ass_item(pySamplebuffer *self,int i,PyObject *v)
+{
+    int ret;
+    if(self->buf) {
+	    if (i < 0 || i >= self->buf->Frames()) {
+		    PyErr_Format(PyExc_IndexError,"Index out of range");
+		    ret = -1;
+	    }
+        else {
+            if(self->buf->Channels() == 1) {
+                self->buf->Data()[i] = (t_sample)PyFloat_AsDouble(v);
+                if(PyErr_Occurred()) {
+                    // cast to double failed
+    		        PyErr_SetString(PyExc_TypeError,"Value must be a numarray");
+                    ret = -1;
+                }
+                else {
+                    self->dirty = true;
+                    ret = 0;
+                }
+            }
+            else {
+		        PyErr_SetString(PyExc_NotImplementedError,"Multiple channels not implemented yet");
+		        ret = -1;
+            }
+        }
+    }
+    else
+        ret = -1;
+	return ret;
+}
+
+static int buffer_ass_slice(pySamplebuffer *self,int ilow,int ihigh,PyObject *value)
+{
+    int ret;
+#ifdef PY_ARRAYS
+    if(arrsupport()) {
+        if(!value) {
+            PyErr_SetString(PyExc_TypeError,"Object doesn't support item deletion");
+            ret = -1;
+        }
+        else if(self->buf) {
+            const int n = self->buf->Frames();
+            const int c = self->buf->Channels();
+            if(ilow < 0) ilow += n;
+            if(ilow >= n) ilow = n-1;
+            if(ihigh < 0) ihigh += n;
+            if(ihigh > n) ihigh = n;
+
+#ifdef PY_NUMARRAY
+            PyArrayObject *out = NA_InputArray(value,numtype,NUM_C_ARRAY);
+#else
+            PyArrayObject *out = (PyArrayObject *)PyArray_ContiguousFromObject(value,numtype,0,0);
+#endif
+            if(!out) {
+                PyErr_SetString(PyExc_TypeError,"Assigned object must be a numarray");
+                ret = -1;
+            }
+            else if(out->nd != 1) {
+                PyErr_SetString(PyExc_NotImplementedError,"Multiple dimensions not supported yet");
+                ret = -1;
+            }
+            else {
+                int dlen = ihigh-ilow;
+                int slen = out->dimensions[0];
+#ifdef PY_NUMARRAY
+                flext::CopySamples(self->buf->Data()+ilow,(t_sample *)NA_OFFSETDATA(out),slen < dlen?slen:dlen);
+#else
+                flext::CopySamples(self->buf->Data()+ilow,(t_sample *)out->data,slen < dlen?slen:dlen);
+#endif
+                self->dirty = true;
+                ret = 0;
+            }
+
+            Py_XDECREF(out);
+        }
+        else {
+            PyErr_SetString(PyExc_ValueError,"Buffer is not assigned");
+            ret = -1;
+        }
+    }
+    else 
+#endif
+    {
+        PyErr_SetString(PyExc_RuntimeError,"No numarray support");
+        ret = -1;
+    }
+    return ret;
+}
+
+static PyObject *buffer_concat(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PySequence_Concat(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_repeat(pySamplebuffer *self,int rep)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PySequence_Repeat(nobj,rep);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+
+static PySequenceMethods buffer_as_seq = {
+	(inquiry)buffer_length,			/* inquiry sq_length;             __len__ */
+	(binaryfunc)buffer_concat,          /* __add__ */
+	(intargfunc)buffer_repeat,          /* __mul__ */
+	(intargfunc)buffer_item,			/* intargfunc sq_item;            __getitem__ */
+	(intintargfunc)buffer_slice,		 /* intintargfunc sq_slice;        __getslice__ */
+	(intobjargproc)buffer_ass_item,		/* intobjargproc sq_ass_item;     __setitem__ */
+	(intintobjargproc)buffer_ass_slice,	/* intintobjargproc sq_ass_slice; __setslice__ */
+};
+
+static PyObject *buffer_iter(PyObject *obj)
+{
+    pySamplebuffer *self = (pySamplebuffer *)obj;
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *it = PyObject_GetIter(nobj);
+        Py_DECREF(nobj);
+        return it;
+    }
+    else
+        return NULL;
+}
+
+
+static PyObject *buffer_add(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Add(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_subtract(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Subtract(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_multiply(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Multiply(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_divide(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Divide(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_remainder(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Remainder(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_divmod(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Divmod(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_power(pySamplebuffer *self,PyObject *op1,PyObject *op2)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Power(nobj,op1,op2);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_negative(pySamplebuffer *self)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Negative(nobj);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_pos(pySamplebuffer *self)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Positive(nobj);
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_absolute(pySamplebuffer *self)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_Absolute(nobj);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static int buffer_coerce(pySamplebuffer **pm, PyObject **pw) 
+{
+    if(pySamplebuffer_Check(*pw)) {
+        Py_INCREF(*pm);
+        Py_INCREF(*pw);
+    	return 0;
+    }
+    else
+        return 1;
+}
+	
+static PyObject *buffer_inplace_add(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlaceAdd(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_inplace_subtract(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlaceSubtract(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_inplace_multiply(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlaceMultiply(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_inplace_divide(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlaceDivide(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_inplace_remainder(pySamplebuffer *self,PyObject *op)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlaceRemainder(nobj,op);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+static PyObject *buffer_inplace_power(pySamplebuffer *self,PyObject *op1,PyObject *op2)
+{
+    PyObject *nobj = buffer_slice(self);
+    if(nobj) {
+        PyObject *ret = PyNumber_InPlacePower(nobj,op1,op2);
+        if(ret == nobj) self->dirty = true;
+        Py_DECREF(nobj);
+        return ret;
+    }
+    else
+        return NULL;
+}
+
+
+
+static PyNumberMethods buffer_as_number = {
+	(binaryfunc)buffer_add, /*nb_add*/
+	(binaryfunc)buffer_subtract, /*nb_subtract*/
+	(binaryfunc)buffer_multiply, /*nb_multiply*/
+	(binaryfunc)buffer_divide, /*nb_divide*/
+	(binaryfunc)buffer_remainder, /*nb_remainder*/
+	(binaryfunc)buffer_divmod, /*nb_divmod*/
+	(ternaryfunc)buffer_power, /*nb_power*/
+	(unaryfunc)buffer_negative, 
+	(unaryfunc)buffer_pos, /*nb_pos*/ 
+	(unaryfunc)buffer_absolute, /* (unaryfunc)buffer_abs,  */
+	0, //(inquiry)buffer_nonzero, /*nb_nonzero*/
+	0,		/*nb_invert*/
+	0,		/*nb_lshift*/
+	0,		/*nb_rshift*/
+	0,		/*nb_and*/
+	0,		/*nb_xor*/
+	0,		/*nb_or*/
+	(coercion)buffer_coerce, /*nb_coerce*/
+	0, /*nb_int*/
+	0, /*nb_long*/
+	0, /*nb_float*/
+	0,		/*nb_oct*/
+	0,		/*nb_hex*/
+	(binaryfunc)buffer_inplace_add,		/* nb_inplace_add */
+	(binaryfunc)buffer_inplace_subtract,		/* nb_inplace_subtract */
+	(binaryfunc)buffer_inplace_multiply,		/* nb_inplace_multiply */
+	(binaryfunc)buffer_inplace_divide,		/* nb_inplace_divide */
+	(binaryfunc)buffer_inplace_remainder,		/* nb_inplace_remainder */
+	(ternaryfunc)buffer_inplace_power, 		/* nb_inplace_power */
+	0,		/* nb_inplace_lshift */
+	0,		/* nb_inplace_rshift */
+	0,		/* nb_inplace_and */
+	0,		/* nb_inplace_xor */
+	0,		/* nb_inplace_or */
+//	buffer_floor_div, /* nb_floor_divide */
+//	buffer_div,	/* nb_true_divide */
+//	buffer_inplace_floor_div,		/* nb_inplace_floor_divide */
+//	buffer_inplace_div,		/* nb_inplace_true_divide */
+};
+
+PyTypeObject pySamplebuffer_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,                         /*ob_size*/
+    "Buffer",              /*tp_name*/
+    sizeof(pySamplebuffer),          /*tp_basicsize*/
+    0,                         /*tp_itemsize*/
+    buffer_dealloc,            /*tp_dealloc*/
+    0,                         /*tp_print*/
+    0,                         /*tp_getattr*/
+    0,                         /*tp_setattr*/
+    0,            /*tp_compare*/
+    buffer_repr,               /*tp_repr*/
+    &buffer_as_number,                         /*tp_as_number*/
+    &buffer_as_seq,                 /*tp_as_sequence*/
+    0,                         /*tp_as_mapping*/
+    buffer_hash,               /*tp_hash */
+    0,                         /*tp_call*/
+    0,                         /*tp_str*/
+    0,                         /*tp_getattro*/
+    0,                         /*tp_setattro*/
+    &buffer_as_buffer,             /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT /*| Py_TPFLAGS_BASETYPE*/,   /*tp_flags*/
+    "Samplebuffer objects",           /* tp_doc */
+    0,		               /* tp_traverse */
+    0,		               /* tp_clear */
+    0 /*buffer_richcompare*/,	       /* tp_richcompare */
+    0,		               /* tp_weaklistoffset */
+    buffer_iter,		               /* tp_iter */
+    0,		               /* tp_iternext */
+    buffer_methods,                          /* tp_methods */
+    0,            /* tp_members */
+    buffer_getseters,          /* tp_getset */
+    0,                         /* tp_base */
+    0,                         /* tp_dict */
+    0,                         /* tp_descr_get */
+    0,                         /* tp_descr_set */
+    0,                         /* tp_dictoffset */
+    buffer_init,            /* tp_init */
+    0,                         /* tp_alloc */
+    buffer_new,                 /* tp_new */
+};
+
+void initsamplebuffer()
+{
+    PyErr_Clear();
+
+#ifdef PY_ARRAYS
+#ifdef PY_NUMARRAY
+    import_libnumarray();
+#else
+    import_array();
+#endif
+    if(PyErr_Occurred())
+        // catch import error
+        PyErr_Clear();
+    else {
+        // numarray support ok
+#ifdef PY_NUMARRAY
+        numtype = sizeof(t_sample) == 4?tFloat32:tFloat64;
+#else
+        numtype = sizeof(t_sample) == 4?PyArray_FLOAT:PyArray_DOUBLE;
+#endif
+        post("");
+	    post("Python array support enabled");
+    }
+#endif
+
+    if(PyType_Ready(&pySamplebuffer_Type) < 0)
+        FLEXT_ASSERT(false);
+    else
+        Py_INCREF(&pySamplebuffer_Type);
+}