diff --git a/Modules/_bsddb.c b/Modules/_bsddb.c
index fca203d..9bcb334 100644
--- a/Modules/_bsddb.c
+++ b/Modules/_bsddb.c
@@ -1100,7 +1100,7 @@
         }
         else if (PyString_Check(result)) {
             char* data;
-            int   size;
+            Py_ssize_t size;
 
             CLEAR_DBT(*secKey);
 #if PYTHON_API_VERSION <= 1007
@@ -2614,7 +2614,7 @@
 /*-------------------------------------------------------------- */
 /* Mapping and Dictionary-like access routines */
 
-int DB_length(DBObject* self)
+Py_ssize_t DB_length(DBObject* self)
 {
     int err;
     long size = 0;
@@ -4679,7 +4679,7 @@
 
 
 static PyMappingMethods DB_mapping = {
-        (inquiry)DB_length,          /*mp_length*/
+        (lenfunc)DB_length,          /*mp_length*/
         (binaryfunc)DB_subscript,    /*mp_subscript*/
         (objobjargproc)DB_ass_sub,   /*mp_ass_subscript*/
 };
diff --git a/Modules/_codecsmodule.c b/Modules/_codecsmodule.c
index 8b225c3..39b443b 100644
--- a/Modules/_codecsmodule.c
+++ b/Modules/_codecsmodule.c
@@ -35,6 +35,7 @@
 
    ------------------------------------------------------------------------ */
 
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 /* --- Registry ----------------------------------------------------------- */
@@ -196,7 +197,7 @@
 {
     const char *errors = NULL;
     const char *data;
-    int size;
+    Py_ssize_t size;
 
     if (!PyArg_ParseTuple(args, "s#|z:escape_decode",
 			  &data, &size, &errors))
@@ -241,7 +242,7 @@
     PyObject *obj;
     const char *errors = NULL;
     const char *data;
-    int size;
+    Py_ssize_t size;
 
     if (!PyArg_ParseTuple(args, "O|z:unicode_internal_decode",
 			  &obj, &errors))
@@ -265,7 +266,7 @@
 	    PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:utf_7_decode",
@@ -281,15 +282,19 @@
 	    PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     int final = 0;
-    int consumed;
+    Py_ssize_t consumed;
     PyObject *decoded = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|zi:utf_8_decode",
 			  &data, &size, &errors, &final))
 	return NULL;
+    if (size < 0) {
+	    PyErr_SetString(PyExc_ValueError, "negative argument");
+	    return 0;
+    }
     consumed = size;
 	
     decoded = PyUnicode_DecodeUTF8Stateful(data, size, errors,
@@ -304,16 +309,21 @@
 	    PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     int byteorder = 0;
     int final = 0;
-    int consumed;
+    Py_ssize_t consumed;
     PyObject *decoded;
 
     if (!PyArg_ParseTuple(args, "t#|zi:utf_16_decode",
 			  &data, &size, &errors, &final))
 	return NULL;
+    /* XXX Why is consumed initialized to size? mvl */
+    if (size < 0) {
+	    PyErr_SetString(PyExc_ValueError, "negative argument");
+	    return 0;
+    }
     consumed = size;
     decoded = PyUnicode_DecodeUTF16Stateful(data, size, errors, &byteorder,
 					    final ? NULL : &consumed);
@@ -327,16 +337,22 @@
 		 PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     int byteorder = -1;
     int final = 0;
-    int consumed;
+    Py_ssize_t consumed;
     PyObject *decoded = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|zi:utf_16_le_decode",
 			  &data, &size, &errors, &final))
 	return NULL;
+
+    /* XXX Why is consumed initialized to size? mvl */
+    if (size < 0) {
+          PyErr_SetString(PyExc_ValueError, "negative argument");
+          return 0;
+    }
     consumed = size;
     decoded = PyUnicode_DecodeUTF16Stateful(data, size, errors,
 	&byteorder, final ? NULL : &consumed);
@@ -351,16 +367,21 @@
 		 PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     int byteorder = 1;
     int final = 0;
-    int consumed;
+    Py_ssize_t consumed;
     PyObject *decoded = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|zi:utf_16_be_decode",
 			  &data, &size, &errors, &final))
 	return NULL;
+    /* XXX Why is consumed initialized to size? mvl */
+    if (size < 0) {
+          PyErr_SetString(PyExc_ValueError, "negative argument");
+          return 0;
+    }
     consumed = size;
     decoded = PyUnicode_DecodeUTF16Stateful(data, size, errors,
 	&byteorder, final ? NULL : &consumed);
@@ -382,17 +403,21 @@
 		 PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     int byteorder = 0;
     PyObject *unicode, *tuple;
     int final = 0;
-    int consumed;
+    Py_ssize_t consumed;
 
     if (!PyArg_ParseTuple(args, "t#|zii:utf_16_ex_decode",
 			  &data, &size, &errors, &byteorder, &final))
 	return NULL;
-
+    /* XXX Why is consumed initialized to size? mvl */
+    if (size < 0) {
+	    PyErr_SetString(PyExc_ValueError, "negative argument");
+	    return 0;
+    }
     consumed = size;
     unicode = PyUnicode_DecodeUTF16Stateful(data, size, errors, &byteorder,
 					    final ? NULL : &consumed);
@@ -408,7 +433,7 @@
 		     PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:unicode_escape_decode",
@@ -424,7 +449,7 @@
 			PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:raw_unicode_escape_decode",
@@ -440,7 +465,7 @@
 	       PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:latin_1_decode",
@@ -456,7 +481,7 @@
 	     PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:ascii_decode",
@@ -472,7 +497,7 @@
 	       PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
     PyObject *mapping = NULL;
 
@@ -493,7 +518,7 @@
 	    PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:mbcs_decode",
@@ -513,7 +538,7 @@
 		  PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "s#|z:readbuffer_encode",
@@ -529,7 +554,7 @@
 		  PyObject *args)
 {
     const char *data;
-    int size;
+    Py_ssize_t size;
     const char *errors = NULL;
 
     if (!PyArg_ParseTuple(args, "t#|z:charbuffer_encode",
@@ -547,7 +572,7 @@
     PyObject *obj;
     const char *errors = NULL;
     const char *data;
-    int size;
+    Py_ssize_t size;
 
     if (!PyArg_ParseTuple(args, "O|z:unicode_internal_encode",
 			  &obj, &errors))
diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index a43fe2e..ab3ef23 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -92,6 +92,9 @@
 #endif
 
 /* compatibility macros */
+#if (PY_VERSION_HEX < 0x02050000)
+typedef int Py_ssize_t;
+#endif
 #if (PY_VERSION_HEX < 0x02040000)
 #define PyDict_CheckExact PyDict_Check
 #if (PY_VERSION_HEX < 0x02020000)
@@ -919,8 +922,9 @@
 }
 
 static PyObject*
-element_getitem(ElementObject* self, int index)
+element_getitem(PyObject* _self, Py_ssize_t index)
 {
+    ElementObject* self = (ElementObject*)_self;
     if (!self->extra || index < 0 || index >= self->extra->length) {
         PyErr_SetString(
             PyExc_IndexError,
@@ -934,9 +938,10 @@
 }
 
 static PyObject*
-element_getslice(ElementObject* self, int start, int end)
+element_getslice(PyObject* _self, Py_ssize_t start, Py_ssize_t end)
 {
-    int i;
+    ElementObject* self = (ElementObject*)_self;
+    Py_ssize_t i;
     PyObject* list;
 
     if (!self->extra)
@@ -1022,7 +1027,7 @@
     return PyDict_Keys(self->extra->attrib);
 }
 
-static int
+static Py_ssize_t
 element_length(ElementObject* self)
 {
     if (!self->extra)
@@ -1161,8 +1166,9 @@
 }
 
 static int
-element_setslice(ElementObject* self, int start, int end, PyObject* item)
+element_setslice(PyObject* _self, Py_ssize_t start, Py_ssize_t end, PyObject* item)
 {
+    ElementObject* self = (ElementObject*)_self;
     int i, new, old;
     PyObject* recycle = NULL;
 
@@ -1231,8 +1237,9 @@
 }
 
 static int
-element_setitem(ElementObject* self, int index, PyObject* item)
+element_setitem(PyObject* _self, Py_ssize_t index, PyObject* item)
 {
+    ElementObject* self = (ElementObject*)_self;
     int i;
     PyObject* old;
 
@@ -1371,13 +1378,13 @@
 }
 
 static PySequenceMethods element_as_sequence = {
-    (inquiry) element_length,
+    (lenfunc) element_length,
     0, /* sq_concat */
     0, /* sq_repeat */
-    (intargfunc) element_getitem,
-    (intintargfunc) element_getslice,
-    (intobjargproc) element_setitem,
-    (intintobjargproc) element_setslice,
+    element_getitem,
+    element_getslice,
+    element_setitem,
+    element_setslice,
 };
 
 statichere PyTypeObject Element_Type = {
diff --git a/Modules/_hotshot.c b/Modules/_hotshot.c
index 758c4ee..162a319 100644
--- a/Modules/_hotshot.c
+++ b/Modules/_hotshot.c
@@ -71,7 +71,7 @@
     PyObject_HEAD
     PyObject *filemap;
     PyObject *logfilename;
-    int index;
+    Py_ssize_t index;
     unsigned char buffer[BUFFERSIZE];
     FILE *logfp;
     int lineevents;
@@ -526,7 +526,7 @@
 }
 
 static PyObject *
-logreader_sq_item(LogReaderObject *self, int index)
+logreader_sq_item(LogReaderObject *self, Py_ssize_t index)
 {
     PyObject *result = logreader_tp_iternext(self);
     if (result == NULL && !PyErr_Occurred()) {
@@ -610,13 +610,14 @@
 }
 
 static int
-pack_string(ProfilerObject *self, const char *s, int len)
+pack_string(ProfilerObject *self, const char *s, Py_ssize_t len)
 {
     if (len + PISIZE + self->index >= BUFFERSIZE) {
         if (flush_data(self) < 0)
             return -1;
     }
-    if (pack_packed_int(self, len) < 0)
+    assert(len < INT_MAX);
+    if (pack_packed_int(self, (int)len) < 0)
         return -1;
     memcpy(self->buffer + self->index, s, len);
     self->index += len;
@@ -626,8 +627,8 @@
 static int
 pack_add_info(ProfilerObject *self, const char *s1, const char *s2)
 {
-    int len1 = strlen(s1);
-    int len2 = strlen(s2);
+    Py_ssize_t len1 = strlen(s1);
+    Py_ssize_t len2 = strlen(s2);
 
     if (len1 + len2 + PISIZE*2 + 1 + self->index >= BUFFERSIZE) {
         if (flush_data(self) < 0)
@@ -643,7 +644,7 @@
 static int
 pack_define_file(ProfilerObject *self, int fileno, const char *filename)
 {
-    int len = strlen(filename);
+    Py_ssize_t len = strlen(filename);
 
     if (len + PISIZE*2 + 1 + self->index >= BUFFERSIZE) {
         if (flush_data(self) < 0)
@@ -660,7 +661,7 @@
 pack_define_func(ProfilerObject *self, int fileno, int lineno,
                  const char *funcname)
 {
-    int len = strlen(funcname);
+    Py_ssize_t len = strlen(funcname);
 
     if (len + PISIZE*3 + 1 + self->index >= BUFFERSIZE) {
         if (flush_data(self) < 0)
@@ -1269,7 +1270,7 @@
     0,					/* sq_length */
     0,					/* sq_concat */
     0,					/* sq_repeat */
-    (intargfunc)logreader_sq_item,	/* sq_item */
+    (ssizeargfunc)logreader_sq_item,	/* sq_item */
     0,					/* sq_slice */
     0,					/* sq_ass_item */
     0,					/* sq_ass_slice */
diff --git a/Modules/_localemodule.c b/Modules/_localemodule.c
index 2d84d80..e3d1e7f 100644
--- a/Modules/_localemodule.c
+++ b/Modules/_localemodule.c
@@ -382,11 +382,11 @@
     if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                       LOCALE_SISO639LANGNAME,
                       locale, sizeof(locale))) {
-        int i = strlen(locale);
+        Py_ssize_t i = strlen(locale);
         locale[i++] = '_';
         if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                           LOCALE_SISO3166CTRYNAME,
-                          locale+i, sizeof(locale)-i))
+                          locale+i, (int)(sizeof(locale)-i)))
             return Py_BuildValue("ss", locale, encoding);
     }
 
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index c008b87..913c49a 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -115,7 +115,8 @@
 static int
 test_dict_inner(int count)
 {
-	int pos = 0, iterations = 0, i;
+	Py_ssize_t pos = 0, iterations = 0;
+	int i;
 	PyObject *dict = PyDict_New();
 	PyObject *v, *k;
 
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 4c7cdf2..704b745 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -3,6 +3,7 @@
 /* An array is a uniform list -- all items have the same type.
    The item type is restricted to simple C types like int or float */
 
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 #include "structmember.h"
 
@@ -23,15 +24,15 @@
 struct arraydescr {
 	int typecode;
 	int itemsize;
-	PyObject * (*getitem)(struct arrayobject *, int);
-	int (*setitem)(struct arrayobject *, int, PyObject *);
+	PyObject * (*getitem)(struct arrayobject *, Py_ssize_t);
+	int (*setitem)(struct arrayobject *, Py_ssize_t, PyObject *);
 };
 
 typedef struct arrayobject {
 	PyObject_HEAD
-	int ob_size;
+	Py_ssize_t ob_size;
 	char *ob_item;
-	int allocated;
+	Py_ssize_t allocated;
 	struct arraydescr *ob_descr;
 	PyObject *weakreflist; /* List of weak references */
 } arrayobject;
@@ -42,7 +43,7 @@
 #define array_CheckExact(op) ((op)->ob_type == &Arraytype)
 
 static int
-array_resize(arrayobject *self, int newsize)
+array_resize(arrayobject *self, Py_ssize_t newsize)
 {
 	char *items;
 	size_t _new_size;
@@ -102,13 +103,13 @@
 ****************************************************************************/
 
 static PyObject *
-c_getitem(arrayobject *ap, int i)
+c_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyString_FromStringAndSize(&((char *)ap->ob_item)[i], 1);
 }
 
 static int
-c_setitem(arrayobject *ap, int i, PyObject *v)
+c_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	char x;
 	if (!PyArg_Parse(v, "c;array item must be char", &x))
@@ -119,7 +120,7 @@
 }
 
 static PyObject *
-b_getitem(arrayobject *ap, int i)
+b_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	long x = ((char *)ap->ob_item)[i];
 	if (x >= 128)
@@ -128,7 +129,7 @@
 }
 
 static int
-b_setitem(arrayobject *ap, int i, PyObject *v)
+b_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	short x;
 	/* PyArg_Parse's 'b' formatter is for an unsigned char, therefore
@@ -152,14 +153,14 @@
 }
 
 static PyObject *
-BB_getitem(arrayobject *ap, int i)
+BB_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	long x = ((unsigned char *)ap->ob_item)[i];
 	return PyInt_FromLong(x);
 }
 
 static int
-BB_setitem(arrayobject *ap, int i, PyObject *v)
+BB_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	unsigned char x;
 	/* 'B' == unsigned char, maps to PyArg_Parse's 'b' formatter */
@@ -172,16 +173,16 @@
 
 #ifdef Py_USING_UNICODE
 static PyObject *
-u_getitem(arrayobject *ap, int i)
+u_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyUnicode_FromUnicode(&((Py_UNICODE *) ap->ob_item)[i], 1);
 }
 
 static int
-u_setitem(arrayobject *ap, int i, PyObject *v)
+u_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	Py_UNICODE *p;
-	int len;
+	Py_ssize_t len;
 
 	if (!PyArg_Parse(v, "u#;array item must be unicode character", &p, &len))
 		return -1;
@@ -196,13 +197,13 @@
 #endif
 
 static PyObject *
-h_getitem(arrayobject *ap, int i)
+h_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyInt_FromLong((long) ((short *)ap->ob_item)[i]);
 }
 
 static int
-h_setitem(arrayobject *ap, int i, PyObject *v)
+h_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	short x;
 	/* 'h' == signed short, maps to PyArg_Parse's 'h' formatter */
@@ -214,13 +215,13 @@
 }
 
 static PyObject *
-HH_getitem(arrayobject *ap, int i)
+HH_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyInt_FromLong((long) ((unsigned short *)ap->ob_item)[i]);
 }
 
 static int
-HH_setitem(arrayobject *ap, int i, PyObject *v)
+HH_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	int x;
 	/* PyArg_Parse's 'h' formatter is for a signed short, therefore
@@ -243,13 +244,13 @@
 }
 
 static PyObject *
-i_getitem(arrayobject *ap, int i)
+i_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyInt_FromLong((long) ((int *)ap->ob_item)[i]);
 }
 
 static int
-i_setitem(arrayobject *ap, int i, PyObject *v)
+i_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	int x;
 	/* 'i' == signed int, maps to PyArg_Parse's 'i' formatter */
@@ -261,14 +262,14 @@
 }
 
 static PyObject *
-II_getitem(arrayobject *ap, int i)
+II_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyLong_FromUnsignedLong(
 		(unsigned long) ((unsigned int *)ap->ob_item)[i]);
 }
 
 static int
-II_setitem(arrayobject *ap, int i, PyObject *v)
+II_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	unsigned long x;
 	if (PyLong_Check(v)) {
@@ -300,13 +301,13 @@
 }
 
 static PyObject *
-l_getitem(arrayobject *ap, int i)
+l_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyInt_FromLong(((long *)ap->ob_item)[i]);
 }
 
 static int
-l_setitem(arrayobject *ap, int i, PyObject *v)
+l_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	long x;
 	if (!PyArg_Parse(v, "l;array item must be integer", &x))
@@ -317,13 +318,13 @@
 }
 
 static PyObject *
-LL_getitem(arrayobject *ap, int i)
+LL_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyLong_FromUnsignedLong(((unsigned long *)ap->ob_item)[i]);
 }
 
 static int
-LL_setitem(arrayobject *ap, int i, PyObject *v)
+LL_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	unsigned long x;
 	if (PyLong_Check(v)) {
@@ -355,13 +356,13 @@
 }
 
 static PyObject *
-f_getitem(arrayobject *ap, int i)
+f_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyFloat_FromDouble((double) ((float *)ap->ob_item)[i]);
 }
 
 static int
-f_setitem(arrayobject *ap, int i, PyObject *v)
+f_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	float x;
 	if (!PyArg_Parse(v, "f;array item must be float", &x))
@@ -372,13 +373,13 @@
 }
 
 static PyObject *
-d_getitem(arrayobject *ap, int i)
+d_getitem(arrayobject *ap, Py_ssize_t i)
 {
 	return PyFloat_FromDouble(((double *)ap->ob_item)[i]);
 }
 
 static int
-d_setitem(arrayobject *ap, int i, PyObject *v)
+d_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
 {
 	double x;
 	if (!PyArg_Parse(v, "d;array item must be float", &x))
@@ -412,7 +413,7 @@
 ****************************************************************************/
 
 static PyObject *
-newarrayobject(PyTypeObject *type, int size, struct arraydescr *descr)
+newarrayobject(PyTypeObject *type, Py_ssize_t size, struct arraydescr *descr)
 {
 	arrayobject *op;
 	size_t nbytes;
@@ -449,7 +450,7 @@
 }
 
 static PyObject *
-getarrayitem(PyObject *op, int i)
+getarrayitem(PyObject *op, Py_ssize_t i)
 {
 	register arrayobject *ap;
 	assert(array_Check(op));
@@ -459,10 +460,10 @@
 }
 
 static int
-ins1(arrayobject *self, int where, PyObject *v)
+ins1(arrayobject *self, Py_ssize_t where, PyObject *v)
 {
 	char *items;
-	int n = self->ob_size;
+	Py_ssize_t n = self->ob_size;
 	if (v == NULL) {
 		PyErr_BadInternalCall();
 		return -1;
@@ -506,7 +507,7 @@
 	arrayobject *va, *wa;
 	PyObject *vi = NULL;
 	PyObject *wi = NULL;
-	int i, k;
+	Py_ssize_t i, k;
 	PyObject *res;
 
 	if (!array_Check(v) || !array_Check(w)) {
@@ -548,8 +549,8 @@
 
 	if (k) {
 		/* No more items to compare -- compare sizes */
-		int vs = va->ob_size;
-		int ws = wa->ob_size;
+		Py_ssize_t vs = va->ob_size;
+		Py_ssize_t ws = wa->ob_size;
 		int cmp;
 		switch (op) {
 		case Py_LT: cmp = vs <  ws; break;
@@ -586,14 +587,14 @@
 	return res;
 }
 
-static int
+static Py_ssize_t
 array_length(arrayobject *a)
 {
 	return a->ob_size;
 }
 
 static PyObject *
-array_item(arrayobject *a, int i)
+array_item(arrayobject *a, Py_ssize_t i)
 {
 	if (i < 0 || i >= a->ob_size) {
 		PyErr_SetString(PyExc_IndexError, "array index out of range");
@@ -603,7 +604,7 @@
 }
 
 static PyObject *
-array_slice(arrayobject *a, int ilow, int ihigh)
+array_slice(arrayobject *a, Py_ssize_t ilow, Py_ssize_t ihigh)
 {
 	arrayobject *np;
 	if (ilow < 0)
@@ -638,7 +639,7 @@
 static PyObject *
 array_concat(arrayobject *a, PyObject *bb)
 {
-	int size;
+	Py_ssize_t size;
 	arrayobject *np;
 	if (!array_Check(bb)) {
 		PyErr_Format(PyExc_TypeError,
@@ -664,13 +665,13 @@
 }
 
 static PyObject *
-array_repeat(arrayobject *a, int n)
+array_repeat(arrayobject *a, Py_ssize_t n)
 {
-	int i;
-	int size;
+	Py_ssize_t i;
+	Py_ssize_t size;
 	arrayobject *np;
 	char *p;
-	int nbytes;
+	Py_ssize_t nbytes;
 	if (n < 0)
 		n = 0;
 	size = a->ob_size * n;
@@ -760,7 +761,7 @@
 }
 
 static int
-array_ass_item(arrayobject *a, int i, PyObject *v)
+array_ass_item(arrayobject *a, Py_ssize_t i, PyObject *v)
 {
 	if (i < 0 || i >= a->ob_size) {
 		PyErr_SetString(PyExc_IndexError,
@@ -773,7 +774,7 @@
 }
 
 static int
-setarrayitem(PyObject *a, int i, PyObject *v)
+setarrayitem(PyObject *a, Py_ssize_t i, PyObject *v)
 {
 	assert(array_Check(a));
 	return array_ass_item((arrayobject *)a, i, v);
@@ -805,7 +806,7 @@
 static int
 array_do_extend(arrayobject *self, PyObject *bb)
 {
-	int size;
+	Py_ssize_t size;
 
 	if (!array_Check(bb))
 		return array_iter_extend(self, bb);
@@ -847,10 +848,10 @@
 }
 
 static PyObject *
-array_inplace_repeat(arrayobject *self, int n)
+array_inplace_repeat(arrayobject *self, Py_ssize_t n)
 {
 	char *items, *p;
-	int size, i;
+	Py_ssize_t size, i;
 
 	if (self->ob_size > 0) {
 		if (n < 0)
@@ -883,7 +884,7 @@
 
 
 static PyObject *
-ins(arrayobject *self, int where, PyObject *v)
+ins(arrayobject *self, Py_ssize_t where, PyObject *v)
 {
 	if (ins1(self, where, v) != 0)
 		return NULL;
@@ -894,8 +895,8 @@
 static PyObject *
 array_count(arrayobject *self, PyObject *v)
 {
-	int count = 0;
-	int i;
+	Py_ssize_t count = 0;
+	Py_ssize_t i;
 
 	for (i = 0; i < self->ob_size; i++) {
 		PyObject *selfi = getarrayitem((PyObject *)self, i);
@@ -906,7 +907,10 @@
 		else if (cmp < 0)
 			return NULL;
 	}
-	return PyInt_FromLong((long)count);
+	if (i < LONG_MAX)
+	     return PyInt_FromLong((long)count);
+	else
+	     return PyLong_FromLong(count);
 }
 
 PyDoc_STRVAR(count_doc,
@@ -917,7 +921,7 @@
 static PyObject *
 array_index(arrayobject *self, PyObject *v)
 {
-	int i;
+	Py_ssize_t i;
 
 	for (i = 0; i < self->ob_size; i++) {
 		PyObject *selfi = getarrayitem((PyObject *)self, i);
@@ -941,7 +945,8 @@
 static int
 array_contains(arrayobject *self, PyObject *v)
 {
-	int i, cmp;
+	Py_ssize_t i;
+	int cmp;
 
 	for (i = 0, cmp = 0 ; cmp == 0 && i < self->ob_size; i++) {
 		PyObject *selfi = getarrayitem((PyObject *)self, i);
@@ -1079,7 +1084,7 @@
 array_byteswap(arrayobject *self, PyObject *unused)
 {
 	char *p;
-	int i;
+	Py_ssize_t i;
 
 	switch (self->ob_descr->itemsize) {
 	case 1:
@@ -1158,7 +1163,7 @@
 static PyObject *
 array_reverse(arrayobject *self, PyObject *unused)
 {
-	register int itemsize = self->ob_descr->itemsize;
+	register Py_ssize_t itemsize = self->ob_descr->itemsize;
 	register char *p, *q;
 	/* little buffer to hold items while swapping */
 	char tmp[256];	/* 8 is probably enough -- but why skimp */
@@ -1223,7 +1228,7 @@
 		nread = fread(item + (self->ob_size - n) * itemsize,
 			      itemsize, n, fp);
 		if (nread < (size_t)n) {
-			self->ob_size -= (n - nread);
+		  self->ob_size -= (n - nread);
 			PyMem_RESIZE(item, char, self->ob_size*itemsize);
 			self->ob_item = item;
 			self->allocated = self->ob_size;
@@ -1275,8 +1280,8 @@
 static PyObject *
 array_fromlist(arrayobject *self, PyObject *list)
 {
-	int n;
-	int itemsize = self->ob_descr->itemsize;
+	Py_ssize_t n;
+	Py_ssize_t itemsize = self->ob_descr->itemsize;
 
 	if (!PyList_Check(list)) {
 		PyErr_SetString(PyExc_TypeError, "arg must be list");
@@ -1285,7 +1290,7 @@
 	n = PyList_Size(list);
 	if (n > 0) {
 		char *item = self->ob_item;
-		int i;
+		Py_ssize_t i;
 		PyMem_RESIZE(item, char, (self->ob_size + n) * itemsize);
 		if (item == NULL) {
 			PyErr_NoMemory();
@@ -1321,7 +1326,7 @@
 array_tolist(arrayobject *self, PyObject *unused)
 {
 	PyObject *list = PyList_New(self->ob_size);
-	int i;
+	Py_ssize_t i;
 
 	if (list == NULL)
 		return NULL;
@@ -1346,7 +1351,7 @@
 array_fromstring(arrayobject *self, PyObject *args)
 {
 	char *str;
-	int n;
+	Py_ssize_t n;
 	int itemsize = self->ob_descr->itemsize;
         if (!PyArg_ParseTuple(args, "s#:fromstring", &str, &n))
 		return NULL;
@@ -1400,7 +1405,7 @@
 array_fromunicode(arrayobject *self, PyObject *args)
 {
 	Py_UNICODE *ustr;
-	int n;
+	Py_ssize_t n;
 
         if (!PyArg_ParseTuple(args, "u#:fromunicode", &ustr, &n))
 		return NULL;
@@ -1541,7 +1546,7 @@
 {
 	char buf[256], typecode;
 	PyObject *s, *t, *v = NULL;
-	int len;
+	Py_ssize_t len;
 
 	len = a->ob_size;
 	typecode = a->ob_descr->typecode;
@@ -1586,7 +1591,7 @@
 		return array_item(self, i);
 	}
 	else if (PySlice_Check(item)) {
-		int start, stop, step, slicelength, cur, i;
+		Py_ssize_t start, stop, step, slicelength, cur, i;
 		PyObject* result;
 		arrayobject* ar;
 		int itemsize = self->ob_descr->itemsize;
@@ -1640,7 +1645,7 @@
 		return array_ass_item(self, i, value);
 	}
 	else if (PySlice_Check(item)) {
-		int start, stop, step, slicelength;
+		Py_ssize_t start, stop, step, slicelength;
 		int itemsize = self->ob_descr->itemsize;
 
 		if (PySlice_GetIndicesEx((PySliceObject*)item, self->ob_size,
@@ -1654,7 +1659,7 @@
 
 		if (value == NULL) {
 			/* delete slice */
-			int cur, i, extra;
+			Py_ssize_t cur, i, extra;
 			
 			if (slicelength <= 0)
 				return 0;
@@ -1686,7 +1691,7 @@
 		}
 		else {
 			/* assign slice */
-			int cur, i;
+			Py_ssize_t cur, i;
 			arrayobject* av;
 
 			if (!array_Check(value)) {
@@ -1700,8 +1705,8 @@
 
 			if (av->ob_size != slicelength) {
 				PyErr_Format(PyExc_ValueError,
-            "attempt to assign array of size %d to extended slice of size %d",
-					     av->ob_size, slicelength);
+            "attempt to assign array of size %ld to extended slice of size %ld",
+					     /*XXX*/(long)av->ob_size, /*XXX*/(long)slicelength);
 				return -1;
 			}
 
@@ -1737,13 +1742,13 @@
 }
 
 static PyMappingMethods array_as_mapping = {
-	(inquiry)array_length,
+	(lenfunc)array_length,
 	(binaryfunc)array_subscr,
 	(objobjargproc)array_ass_subscr
 };
 
-static int
-array_buffer_getreadbuf(arrayobject *self, int index, const void **ptr)
+static Py_ssize_t
+array_buffer_getreadbuf(arrayobject *self, Py_ssize_t index, const void **ptr)
 {
 	if ( index != 0 ) {
 		PyErr_SetString(PyExc_SystemError,
@@ -1754,8 +1759,8 @@
 	return self->ob_size*self->ob_descr->itemsize;
 }
 
-static int
-array_buffer_getwritebuf(arrayobject *self, int index, const void **ptr)
+static Py_ssize_t
+array_buffer_getwritebuf(arrayobject *self, Py_ssize_t index, const void **ptr)
 {
 	if ( index != 0 ) {
 		PyErr_SetString(PyExc_SystemError,
@@ -1766,8 +1771,8 @@
 	return self->ob_size*self->ob_descr->itemsize;
 }
 
-static int
-array_buffer_getsegcount(arrayobject *self, int *lenp)
+static Py_ssize_t
+array_buffer_getsegcount(arrayobject *self, Py_ssize_t *lenp)
 {
 	if ( lenp )
 		*lenp = self->ob_size*self->ob_descr->itemsize;
@@ -1775,22 +1780,22 @@
 }
 
 static PySequenceMethods array_as_sequence = {
-	(inquiry)array_length,		        /*sq_length*/
+	(lenfunc)array_length,		        /*sq_length*/
 	(binaryfunc)array_concat,               /*sq_concat*/
-	(intargfunc)array_repeat,		/*sq_repeat*/
-	(intargfunc)array_item,		        /*sq_item*/
-	(intintargfunc)array_slice,		/*sq_slice*/
-	(intobjargproc)array_ass_item,		/*sq_ass_item*/
-	(intintobjargproc)array_ass_slice,	/*sq_ass_slice*/
+	(ssizeargfunc)array_repeat,		/*sq_repeat*/
+	(ssizeargfunc)array_item,		        /*sq_item*/
+	(ssizessizeargfunc)array_slice,		/*sq_slice*/
+	(ssizeobjargproc)array_ass_item,		/*sq_ass_item*/
+	(ssizessizeobjargproc)array_ass_slice,	/*sq_ass_slice*/
 	(objobjproc)array_contains,		/*sq_contains*/
 	(binaryfunc)array_inplace_concat,	/*sq_inplace_concat*/
-	(intargfunc)array_inplace_repeat	/*sq_inplace_repeat*/
+	(ssizeargfunc)array_inplace_repeat	/*sq_inplace_repeat*/
 };
 
 static PyBufferProcs array_as_buffer = {
-	(getreadbufferproc)array_buffer_getreadbuf,
-	(getwritebufferproc)array_buffer_getwritebuf,
-	(getsegcountproc)array_buffer_getsegcount,
+	(readbufferproc)array_buffer_getreadbuf,
+	(writebufferproc)array_buffer_getwritebuf,
+	(segcountproc)array_buffer_getsegcount,
 };
 
 static PyObject *
@@ -1822,7 +1827,7 @@
 	for (descr = descriptors; descr->typecode != '\0'; descr++) {
 		if (descr->typecode == c) {
 			PyObject *a;
-			int len;
+			Py_ssize_t len;
 
 			if (initial == NULL || !(PyList_Check(initial) 
 				|| PyTuple_Check(initial)))
@@ -1835,7 +1840,7 @@
 				return NULL;
 
 			if (len > 0) {
-				int i;
+				Py_ssize_t i;
 				for (i = 0; i < len; i++) {
 					PyObject *v =
 					        PySequence_GetItem(initial, i);
@@ -1864,7 +1869,7 @@
 				Py_DECREF(v);
 #ifdef Py_USING_UNICODE
 			} else if (initial != NULL && PyUnicode_Check(initial))  {
-				int n = PyUnicode_GET_DATA_SIZE(initial);
+				Py_ssize_t n = PyUnicode_GET_DATA_SIZE(initial);
 				if (n > 0) {
 					arrayobject *self = (arrayobject *)a;
 					char *item = self->ob_item;
@@ -2012,9 +2017,9 @@
 
 typedef struct {
 	PyObject_HEAD
-	long			index;
+	Py_ssize_t			index;
 	arrayobject		*ao;
-	PyObject		* (*getitem)(struct arrayobject *, int);
+	PyObject		* (*getitem)(struct arrayobject *, Py_ssize_t);
 } arrayiterobject;
 
 static PyTypeObject PyArrayIter_Type;
diff --git a/Modules/audioop.c b/Modules/audioop.c
index 8d5a305..5e285f4 100644
--- a/Modules/audioop.c
+++ b/Modules/audioop.c
@@ -1020,7 +1020,9 @@
 							      cur_i[chan]));
 				if (PyErr_Occurred())
 					goto exit;
-				len = ncp - PyString_AsString(str);
+				/* We have checked before that the length
+				 * of the string fits into int. */
+				len = (int)(ncp - PyString_AsString(str));
 				if (len == 0) {
 					/*don't want to resize to zero length*/
 					rv = PyString_FromStringAndSize("", 0);
diff --git a/Modules/bsddbmodule.c b/Modules/bsddbmodule.c
index 6bdffde..61c6564 100644
--- a/Modules/bsddbmodule.c
+++ b/Modules/bsddbmodule.c
@@ -240,7 +240,7 @@
 #define BSDDB_END_SAVE(_dp) Py_END_ALLOW_THREADS
 #endif
 
-static int
+static Py_ssize_t
 bsddb_length(bsddbobject *dp)
 {
 	check_bsddbobject_open(dp, -1);
@@ -374,7 +374,7 @@
 }
 
 static PyMappingMethods bsddb_as_mapping = {
-	(inquiry)bsddb_length,		/*mp_length*/
+	(lenfunc)bsddb_length,		/*mp_length*/
 	(binaryfunc)bsddb_subscript,	/*mp_subscript*/
 	(objobjargproc)bsddb_ass_sub,	/*mp_ass_subscript*/
 };
diff --git a/Modules/bz2module.c b/Modules/bz2module.c
index 9f30f8a..a0f66ee 100644
--- a/Modules/bz2module.c
+++ b/Modules/bz2module.c
@@ -908,7 +908,7 @@
 			PyObject *v = PyList_GET_ITEM(list, i);
 			if (!PyString_Check(v)) {
 			    	const char *buffer;
-			    	int len;
+			    	Py_ssize_t len;
 				if (PyObject_AsCharBuffer(v, &buffer, &len)) {
 					PyErr_SetString(PyExc_TypeError,
 							"writelines() "
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index cc821fd..cb14627 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -339,7 +339,7 @@
 
 	int fast; /* Fast mode doesn't save in memo, don't use if circ ref */
         int nesting;
-	int (*write_func)(struct Picklerobject *, const char *, int);
+	int (*write_func)(struct Picklerobject *, const char *, Py_ssize_t);
 	char *write_buf;
 	int buf_size;
 	PyObject *dispatch_table;
@@ -368,8 +368,8 @@
 	int *marks;
 	int num_marks;
 	int marks_size;
-	int (*read_func)(struct Unpicklerobject *, char **, int);
-	int (*readline_func)(struct Unpicklerobject *, char **);
+	Py_ssize_t (*read_func)(struct Unpicklerobject *, char **, Py_ssize_t);
+	Py_ssize_t (*readline_func)(struct Unpicklerobject *, char **);
 	int buf_size;
 	char *buf;
 	PyObject *find_class;
@@ -417,7 +417,7 @@
 }
 
 static int
-write_file(Picklerobject *self, const char *s, int  n)
+write_file(Picklerobject *self, const char *s, Py_ssize_t  n)
 {
 	size_t nbyteswritten;
 
@@ -425,6 +425,11 @@
 		return 0;
 	}
 
+	if (n > INT_MAX) {
+		/* String too large */
+		return -1;
+	}
+
 	Py_BEGIN_ALLOW_THREADS
 	nbyteswritten = fwrite(s, sizeof(char), n, self->fp);
 	Py_END_ALLOW_THREADS
@@ -433,11 +438,11 @@
 		return -1;
 	}
 
-	return n;
+	return (int)n;
 }
 
 static int
-write_cStringIO(Picklerobject *self, const char *s, int  n)
+write_cStringIO(Picklerobject *self, const char *s, Py_ssize_t  n)
 {
 	if (s == NULL) {
 		return 0;
@@ -447,21 +452,26 @@
 		return -1;
 	}
 
-	return n;
+	return (int)n;
 }
 
 static int
-write_none(Picklerobject *self, const char *s, int  n)
+write_none(Picklerobject *self, const char *s, Py_ssize_t  n)
 {
 	if (s == NULL) return 0;
-	return n;
+	if (n > INT_MAX) return -1;
+	return (int)n;
 }
 
 static int
-write_other(Picklerobject *self, const char *s, int  n)
+write_other(Picklerobject *self, const char *s, Py_ssize_t  _n)
 {
 	PyObject *py_str = 0, *junk = 0;
+	int n;
 
+	if (_n > INT_MAX)
+		return -1;
+	n = (int)_n;
 	if (s == NULL) {
 		if (!( self->buf_size ))  return 0;
 		py_str = PyString_FromStringAndSize(self->write_buf,
@@ -505,8 +515,8 @@
 }
 
 
-static int
-read_file(Unpicklerobject *self, char **s, int n)
+static Py_ssize_t
+read_file(Unpicklerobject *self, char **s, Py_ssize_t n)
 {
 	size_t nbytesread;
 
@@ -549,7 +559,7 @@
 }
 
 
-static int
+static Py_ssize_t
 readline_file(Unpicklerobject *self, char **s)
 {
 	int i;
@@ -588,8 +598,8 @@
 }
 
 
-static int
-read_cStringIO(Unpicklerobject *self, char **s, int  n)
+static Py_ssize_t
+read_cStringIO(Unpicklerobject *self, char **s, Py_ssize_t  n)
 {
 	char *ptr;
 
@@ -604,10 +614,10 @@
 }
 
 
-static int
+static Py_ssize_t
 readline_cStringIO(Unpicklerobject *self, char **s)
 {
-	int n;
+	Py_ssize_t n;
 	char *ptr;
 
 	if ((n = PycStringIO->creadline((PyObject *)self->file, &ptr)) < 0) {
@@ -620,12 +630,12 @@
 }
 
 
-static int
-read_other(Unpicklerobject *self, char **s, int  n)
+static Py_ssize_t
+read_other(Unpicklerobject *self, char **s, Py_ssize_t  n)
 {
 	PyObject *bytes, *str=0;
 
-	if (!( bytes = PyInt_FromLong(n)))  return -1;
+	if (!( bytes = PyInt_FromSsize_t(n)))  return -1;
 
 	ARG_TUP(self, bytes);
 	if (self->arg) {
@@ -642,11 +652,11 @@
 }
 
 
-static int
+static Py_ssize_t
 readline_other(Unpicklerobject *self, char **s)
 {
 	PyObject *str;
-	int str_size;
+	Py_ssize_t str_size;
 
 	if (!( str = PyObject_CallObject(self->readline, empty_tuple)))  {
 		return -1;
@@ -828,7 +838,7 @@
 static PyObject *
 whichmodule(PyObject *global, PyObject *global_name)
 {
-	int i, j;
+	Py_ssize_t i, j;
 	PyObject *module = 0, *modules_dict = 0,
 		*global_name_attr = 0, *name = 0;
 
@@ -3280,7 +3290,7 @@
 static int
 load_counted_long(Unpicklerobject *self, int size)
 {
-	int i;
+	Py_ssize_t i;
 	char *nbytes;
 	unsigned char *pdata;
 	PyObject *along;
@@ -4253,7 +4263,7 @@
 	PyObject *state, *inst, *slotstate;
 	PyObject *__setstate__;
 	PyObject *d_key, *d_value;
-	int i;
+	Py_ssize_t i;
 	int res = -1;
 
 	/* Stack is ... instance, state.  We want to leave instance at
@@ -5710,7 +5720,7 @@
 initcPickle(void)
 {
 	PyObject *m, *d, *di, *v, *k;
-	int i;
+	Py_ssize_t i;
 	char *rev = "1.71";	/* XXX when does this change? */
 	PyObject *format_version;
 	PyObject *compatible_formats;
diff --git a/Modules/cStringIO.c b/Modules/cStringIO.c
index ad2f36b..618b88c 100644
--- a/Modules/cStringIO.c
+++ b/Modules/cStringIO.c
@@ -47,7 +47,7 @@
 typedef struct {
   PyObject_HEAD
   char *buf;
-  int pos, string_size;
+  Py_ssize_t pos, string_size;
 } IOobject;
 
 #define IOOOBJECT(O) ((IOobject*)(O))
@@ -57,9 +57,10 @@
 typedef struct { /* Subtype of IOobject */
   PyObject_HEAD
   char *buf;
-  int pos, string_size;
+  Py_ssize_t pos, string_size;
 
-  int buf_size, softspace;
+  Py_ssize_t buf_size;
+  int softspace;
 } Oobject;
 
 /* Declarations for objects of type StringI */
@@ -67,7 +68,7 @@
 typedef struct { /* Subtype of IOobject */
   PyObject_HEAD
   char *buf;
-  int pos, string_size;
+  Py_ssize_t pos, string_size;
   /* We store a reference to the object here in order to keep
      the buffer alive during the lifetime of the Iobject. */
   PyObject *pbuf;
@@ -154,7 +155,7 @@
 "read([s]) -- Read s characters, or the rest of the string");
 
 static int
-IO_cread(PyObject *self, char **output, int  n) {
+IO_cread(PyObject *self, char **output, Py_ssize_t  n) {
         int l;
 
         UNLESS (IO__opencheck(IOOOBJECT(self))) return -1;
@@ -171,10 +172,10 @@
 
 static PyObject *
 IO_read(IOobject *self, PyObject *args) {
-        int n = -1;
+        Py_ssize_t n = -1;
         char *output;
 
-        UNLESS (PyArg_ParseTuple(args, "|i:read", &n)) return NULL;
+        UNLESS (PyArg_ParseTuple(args, "|n:read", &n)) return NULL;
 
         if ( (n=IO_cread((PyObject*)self,&output,n)) < 0) return NULL;
 
@@ -186,7 +187,7 @@
 static int
 IO_creadline(PyObject *self, char **output) {
         char *n, *s;
-        int l;
+        Py_ssize_t l;
 
         UNLESS (IO__opencheck(IOOOBJECT(self))) return -1;
 
@@ -197,8 +198,9 @@
 
         *output=((IOobject*)self)->buf + ((IOobject*)self)->pos;
         l = n - ((IOobject*)self)->buf - ((IOobject*)self)->pos;
-        ((IOobject*)self)->pos += l;
-        return l;
+	assert(((IOobject*)self)->pos + l < INT_MAX);
+        ((IOobject*)self)->pos += (int)l;
+        return (int)l;
 }
 
 static PyObject *
@@ -285,10 +287,10 @@
 
 static PyObject *
 IO_truncate(IOobject *self, PyObject *args) {
-        int pos = -1;
+        Py_ssize_t pos = -1;
 	
         UNLESS (IO__opencheck(self)) return NULL;
-        UNLESS (PyArg_ParseTuple(args, "|i:truncate", &pos)) return NULL;
+        UNLESS (PyArg_ParseTuple(args, "|n:truncate", &pos)) return NULL;
         if (pos < 0) pos = self->pos;
 
         if (self->string_size > pos) self->string_size = pos;
@@ -324,10 +326,11 @@
 
 static PyObject *
 O_seek(Oobject *self, PyObject *args) {
-        int position, mode = 0;
+	Py_ssize_t position;
+	int mode = 0;
 
         UNLESS (IO__opencheck(IOOOBJECT(self))) return NULL;
-        UNLESS (PyArg_ParseTuple(args, "i|i:seek", &position, &mode)) 
+        UNLESS (PyArg_ParseTuple(args, "n|i:seek", &position, &mode)) 
                 return NULL;
 
         if (mode == 2) {
@@ -362,8 +365,8 @@
 
 
 static int
-O_cwrite(PyObject *self, const char *c, int  l) {
-        int newl;
+O_cwrite(PyObject *self, const char *c, Py_ssize_t  l) {
+        Py_ssize_t newl;
         Oobject *oself;
 
         UNLESS (IO__opencheck(IOOOBJECT(self))) return -1;
@@ -372,8 +375,10 @@
         newl = oself->pos+l;
         if (newl >= oself->buf_size) {
             oself->buf_size *= 2;
-            if (oself->buf_size <= newl) 
-                    oself->buf_size = newl+1;
+            if (oself->buf_size <= newl) {
+		    assert(newl + 1 < INT_MAX);
+                    oself->buf_size = (int)(newl+1);
+	    }
             UNLESS (oself->buf = 
                     (char*)realloc(oself->buf, oself->buf_size)) {
                     PyErr_SetString(PyExc_MemoryError,"out of memory");
@@ -384,13 +389,14 @@
 
         memcpy(oself->buf+oself->pos,c,l);
 
-        oself->pos += l;
+	assert(oself->pos + l < INT_MAX);
+        oself->pos += (int)l;
 
         if (oself->string_size < oself->pos) {
             oself->string_size = oself->pos;
         }
 
-        return l;
+        return (int)l;
 }
 
 static PyObject *
@@ -432,7 +438,7 @@
 	if (it == NULL)
 		return NULL;
 	while ((s = PyIter_Next(it)) != NULL) {
-		int n;
+		Py_ssize_t n;
 		char *c;
 		if (PyString_AsStringAndSize(s, &c, &n) == -1) {
 			Py_DECREF(it);
@@ -564,10 +570,11 @@
 
 static PyObject *
 I_seek(Iobject *self, PyObject *args) {
-        int position, mode = 0;
+        Py_ssize_t position;
+	int mode = 0;
 
         UNLESS (IO__opencheck(IOOOBJECT(self))) return NULL;
-        UNLESS (PyArg_ParseTuple(args, "i|i:seek", &position, &mode)) 
+        UNLESS (PyArg_ParseTuple(args, "n|i:seek", &position, &mode)) 
                 return NULL;
 
         if (mode == 2) position += self->string_size;
@@ -648,7 +655,7 @@
 newIobject(PyObject *s) {
   Iobject *self;
   char *buf;
-  int size;
+  Py_ssize_t size;
 
   if (PyObject_AsReadBuffer(s, (const void **)&buf, &size)) {
       PyErr_Format(PyExc_TypeError, "expected read buffer, %.200s found",
diff --git a/Modules/cjkcodecs/multibytecodec.c b/Modules/cjkcodecs/multibytecodec.c
index b0dae0c..c13de8f 100644
--- a/Modules/cjkcodecs/multibytecodec.c
+++ b/Modules/cjkcodecs/multibytecodec.c
@@ -214,7 +214,7 @@
 	if (buf->excobj == NULL) {
 		buf->excobj = PyUnicodeEncodeError_Create(codec->encoding,
 				buf->inbuf_top,
-				(int)(buf->inbuf_end - buf->inbuf_top),
+				buf->inbuf_end - buf->inbuf_top,
 				start, end, reason);
 		if (buf->excobj == NULL)
 			goto errorexit;
diff --git a/Modules/collectionsmodule.c b/Modules/collectionsmodule.c
index 2003154..41ef8cc 100644
--- a/Modules/collectionsmodule.c
+++ b/Modules/collectionsmodule.c
@@ -314,7 +314,7 @@
 "Extend the left side of the deque with elements from the iterable");
 
 static int
-_deque_rotate(dequeobject *deque, int n)
+_deque_rotate(dequeobject *deque, Py_ssize_t n)
 {
 	int i, len=deque->len, halflen=(len+1)>>1;
 	PyObject *item, *rv;
@@ -365,7 +365,7 @@
 PyDoc_STRVAR(rotate_doc,
 "Rotate the deque n steps to the right (default n=1).  If n is negative, rotates left.");
 
-static int
+static Py_ssize_t
 deque_len(dequeobject *deque)
 {
 	return deque->len;
@@ -374,7 +374,7 @@
 static PyObject *
 deque_remove(dequeobject *deque, PyObject *value)
 {
-	int i, n=deque->len;
+	Py_ssize_t i, n=deque->len;
 
 	for (i=0 ; i<n ; i++) {
 		PyObject *item = deque->leftblock->data[deque->leftindex];
@@ -469,7 +469,7 @@
 */
 
 static int
-deque_del_item(dequeobject *deque, int i)
+deque_del_item(dequeobject *deque, Py_ssize_t i)
 {
 	PyObject *item;
 
@@ -485,7 +485,7 @@
 }
 
 static int
-deque_ass_item(dequeobject *deque, int i, PyObject *v)
+deque_ass_item(dequeobject *deque, Py_ssize_t i, PyObject *v)
 {
 	PyObject *old_value;
 	block *b;
@@ -776,12 +776,12 @@
 }
 
 static PySequenceMethods deque_as_sequence = {
-	(inquiry)deque_len,		/* sq_length */
+	(lenfunc)deque_len,		/* sq_length */
 	0,				/* sq_concat */
 	0,				/* sq_repeat */
-	(intargfunc)deque_item,		/* sq_item */
+	(ssizeargfunc)deque_item,	/* sq_item */
 	0,				/* sq_slice */
-	(intobjargproc)deque_ass_item,	/* sq_ass_item */
+	(ssizeobjargproc)deque_ass_item,	/* sq_ass_item */
 };
 
 /* deque object ********************************************************/
diff --git a/Modules/datetimemodule.c b/Modules/datetimemodule.c
index 50f47d4..5c0f220 100644
--- a/Modules/datetimemodule.c
+++ b/Modules/datetimemodule.c
@@ -596,7 +596,7 @@
  */
 
 static PyObject *
-time_alloc(PyTypeObject *type, int aware)
+time_alloc(PyTypeObject *type, Py_ssize_t aware)
 {
 	PyObject *self;
 
@@ -611,7 +611,7 @@
 }
 
 static PyObject *
-datetime_alloc(PyTypeObject *type, int aware)
+datetime_alloc(PyTypeObject *type, Py_ssize_t aware)
 {
 	PyObject *self;
 
diff --git a/Modules/dbmmodule.c b/Modules/dbmmodule.c
index cc963a2..8bfbbcd 100644
--- a/Modules/dbmmodule.c
+++ b/Modules/dbmmodule.c
@@ -70,7 +70,7 @@
 	PyObject_Del(dp);
 }
 
-static int
+static Py_ssize_t
 dbm_length(dbmobject *dp)
 {
         if (dp->di_dbm == NULL) {
@@ -162,7 +162,7 @@
 }
 
 static PyMappingMethods dbm_as_mapping = {
-	(inquiry)dbm_length,		/*mp_length*/
+	(lenfunc)dbm_length,		/*mp_length*/
 	(binaryfunc)dbm_subscript,	/*mp_subscript*/
 	(objobjargproc)dbm_ass_sub,	/*mp_ass_subscript*/
 };
diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index 00239bd..4902eb5 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -1274,7 +1274,7 @@
 }
 
 PyVarObject *
-_PyObject_GC_NewVar(PyTypeObject *tp, int nitems)
+_PyObject_GC_NewVar(PyTypeObject *tp, Py_ssize_t nitems)
 {
 	const size_t size = _PyObject_VAR_SIZE(tp, nitems);
 	PyVarObject *op = (PyVarObject *) _PyObject_GC_Malloc(size);
diff --git a/Modules/gdbmmodule.c b/Modules/gdbmmodule.c
index 6045743..025bdb7 100644
--- a/Modules/gdbmmodule.c
+++ b/Modules/gdbmmodule.c
@@ -86,7 +86,7 @@
     PyObject_Del(dp);
 }
 
-static int
+static Py_ssize_t
 dbm_length(dbmobject *dp)
 {
     if (dp->di_dbm == NULL) {
@@ -178,7 +178,7 @@
 }
 
 static PyMappingMethods dbm_as_mapping = {
-    (inquiry)dbm_length,		/*mp_length*/
+    (lenfunc)dbm_length,		/*mp_length*/
     (binaryfunc)dbm_subscript,          /*mp_subscript*/
     (objobjargproc)dbm_ass_sub,         /*mp_ass_subscript*/
 };
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index b6b2d85..7a68de4 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -583,8 +583,8 @@
 
 /* Functions for treating an mmap'ed file as a buffer */
 
-static int
-mmap_buffer_getreadbuf(mmap_object *self, int index, const void **ptr)
+static Py_ssize_t
+mmap_buffer_getreadbuf(mmap_object *self, Py_ssize_t index, const void **ptr)
 {
 	CHECK_VALID(-1);
 	if ( index != 0 ) {
@@ -596,8 +596,8 @@
 	return self->size;
 }
 
-static int
-mmap_buffer_getwritebuf(mmap_object *self, int index, const void **ptr)
+static Py_ssize_t
+mmap_buffer_getwritebuf(mmap_object *self, Py_ssize_t index, const void **ptr)
 {  
 	CHECK_VALID(-1);
 	if ( index != 0 ) {
@@ -611,8 +611,8 @@
 	return self->size;
 }
 
-static int
-mmap_buffer_getsegcount(mmap_object *self, int *lenp)
+static Py_ssize_t
+mmap_buffer_getsegcount(mmap_object *self, Py_ssize_t *lenp)
 {
 	CHECK_VALID(-1);
 	if (lenp) 
@@ -620,8 +620,8 @@
 	return 1;
 }
 
-static int
-mmap_buffer_getcharbuffer(mmap_object *self, int index, const void **ptr)
+static Py_ssize_t
+mmap_buffer_getcharbuffer(mmap_object *self, Py_ssize_t index, const void **ptr)
 {
 	if ( index != 0 ) {
 		PyErr_SetString(PyExc_SystemError,
@@ -638,7 +638,7 @@
 	return Py_FindMethod (mmap_object_methods, (PyObject *)self, name);
 }
 
-static int
+static Py_ssize_t
 mmap_length(mmap_object *self)
 {
 	CHECK_VALID(-1);
@@ -646,7 +646,7 @@
 }
 
 static PyObject *
-mmap_item(mmap_object *self, int i)
+mmap_item(mmap_object *self, Py_ssize_t i)
 {
 	CHECK_VALID(NULL);
 	if (i < 0 || (size_t)i >= self->size) {
@@ -657,7 +657,7 @@
 }
 
 static PyObject *
-mmap_slice(mmap_object *self, int ilow, int ihigh)
+mmap_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh)
 {
 	CHECK_VALID(NULL);
 	if (ilow < 0)
@@ -684,7 +684,7 @@
 }
 
 static PyObject *
-mmap_repeat(mmap_object *self, int n)
+mmap_repeat(mmap_object *self, Py_ssize_t n)
 {
 	CHECK_VALID(NULL);
 	PyErr_SetString(PyExc_SystemError,
@@ -693,7 +693,7 @@
 }
 
 static int
-mmap_ass_slice(mmap_object *self, int ilow, int ihigh, PyObject *v)
+mmap_ass_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh, PyObject *v)
 {
 	const char *buf;
 
@@ -732,7 +732,7 @@
 }
 
 static int
-mmap_ass_item(mmap_object *self, int i, PyObject *v)
+mmap_ass_item(mmap_object *self, Py_ssize_t i, PyObject *v)
 {
 	const char *buf;
  
@@ -759,20 +759,20 @@
 }
 
 static PySequenceMethods mmap_as_sequence = {
-	(inquiry)mmap_length,		       /*sq_length*/
+	(lenfunc)mmap_length,		       /*sq_length*/
 	(binaryfunc)mmap_concat,	       /*sq_concat*/
-	(intargfunc)mmap_repeat,	       /*sq_repeat*/
-	(intargfunc)mmap_item,		       /*sq_item*/
-	(intintargfunc)mmap_slice,	       /*sq_slice*/
-	(intobjargproc)mmap_ass_item,	       /*sq_ass_item*/
-	(intintobjargproc)mmap_ass_slice,      /*sq_ass_slice*/
+	(ssizeargfunc)mmap_repeat,	       /*sq_repeat*/
+	(ssizeargfunc)mmap_item,		       /*sq_item*/
+	(ssizessizeargfunc)mmap_slice,	       /*sq_slice*/
+	(ssizeobjargproc)mmap_ass_item,	       /*sq_ass_item*/
+	(ssizessizeobjargproc)mmap_ass_slice,      /*sq_ass_slice*/
 };
 
 static PyBufferProcs mmap_as_buffer = {
-	(getreadbufferproc)mmap_buffer_getreadbuf,
-	(getwritebufferproc)mmap_buffer_getwritebuf,
-	(getsegcountproc)mmap_buffer_getsegcount,
-	(getcharbufferproc)mmap_buffer_getcharbuffer,
+	(readbufferproc)mmap_buffer_getreadbuf,
+	(writebufferproc)mmap_buffer_getwritebuf,
+	(segcountproc)mmap_buffer_getsegcount,
+	(charbufferproc)mmap_buffer_getcharbuffer,
 };
 
 static PyTypeObject mmap_object_type = {
diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index b2b32df..514e7e6 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -55,9 +55,9 @@
 static char parser_version_string[] = "0.5";
 
 
-typedef PyObject* (*SeqMaker) (int length);
+typedef PyObject* (*SeqMaker) (Py_ssize_t length);
 typedef int (*SeqInserter) (PyObject* sequence,
-                            int index,
+                            Py_ssize_t index,
                             PyObject* element);
 
 /*  The function below is copyrighted by Stichting Mathematisch Centrum.  The
@@ -632,8 +632,9 @@
 static node*
 build_node_children(PyObject *tuple, node *root, int *line_num)
 {
-    int len = PyObject_Size(tuple);
-    int i, err;
+    Py_ssize_t len = PyObject_Size(tuple);
+    Py_ssize_t i;
+    int  err;
 
     for (i = 1; i < len; ++i) {
         /* elem must always be a sequence, however simple */
@@ -663,7 +664,7 @@
             return (0);
         }
         if (ISTERMINAL(type)) {
-            int len = PyObject_Size(elem);
+            Py_ssize_t len = PyObject_Size(elem);
             PyObject *temp;
 
             if ((len != 2) && (len != 3)) {
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index ba7ea70..f35c090 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -1642,7 +1642,7 @@
 	/* MAX_PATH characters could mean a bigger encoded string */
 	char namebuf[MAX_PATH*2+5];
 	char *bufptr = namebuf;
-	int len = sizeof(namebuf)/sizeof(namebuf[0]);
+	Py_ssize_t len = sizeof(namebuf)/sizeof(namebuf[0]);
 
 #ifdef Py_WIN_WIDE_FILENAMES
 	/* If on wide-character-capable OS see if argument
@@ -2340,7 +2340,7 @@
 	PyObject *argv;
 	char **argvlist;
 	int i, argc;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 
 	/* execv has two arguments: (path, argv), where
 	   argv is a list or tuple of strings. */
@@ -2409,7 +2409,7 @@
 	char **envlist;
 	PyObject *key, *val, *keys=NULL, *vals=NULL;
 	int i, pos, argc, envc;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 	int lastarg = 0;
 
 	/* execve has three arguments: (path, argv, env), where
@@ -2553,7 +2553,7 @@
 	char **argvlist;
 	int mode, i, argc;
 	Py_intptr_t spawnval;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 
 	/* spawnv has three arguments: (mode, path, argv), where
 	   argv is a list or tuple of strings. */
@@ -2642,7 +2642,7 @@
 	PyObject *key, *val, *keys=NULL, *vals=NULL, *res=NULL;
 	int mode, i, pos, argc, envc;
 	Py_intptr_t spawnval;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 	int lastarg = 0;
 
 	/* spawnve has four arguments: (mode, path, argv, env), where
@@ -2794,7 +2794,7 @@
 	char **argvlist;
 	int mode, i, argc;
 	Py_intptr_t spawnval;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 
 	/* spawnvp has three arguments: (mode, path, argv), where
 	   argv is a list or tuple of strings. */
@@ -2875,7 +2875,7 @@
 	PyObject *key, *val, *keys=NULL, *vals=NULL, *res=NULL;
 	int mode, i, pos, argc, envc;
 	Py_intptr_t spawnval;
-	PyObject *(*getitem)(PyObject *, int);
+	PyObject *(*getitem)(PyObject *, Py_ssize_t);
 	int lastarg = 0;
 
 	/* spawnvpe has four arguments: (mode, path, argv, env), where
@@ -4310,14 +4310,15 @@
 	char *s1,*s2, *s3 = " /c ";
 	const char *szConsoleSpawn = "w9xpopen.exe";
 	int i;
-	int x;
+	Py_ssize_t x;
 
 	if (i = GetEnvironmentVariable("COMSPEC",NULL,0)) {
 		char *comshell;
 
 		s1 = (char *)alloca(i);
 		if (!(x = GetEnvironmentVariable("COMSPEC", s1, i)))
-			return x;
+			/* x < i, so x fits into an integer */
+			return (int)x;
 
 		/* Explicitly check if we are using COMMAND.COM.  If we are
 		 * then use the w9xpopen hack.
@@ -4520,7 +4521,7 @@
 		 switch (mode & (_O_RDONLY | _O_TEXT | _O_BINARY | _O_WRONLY)) {
 		 case _O_WRONLY | _O_TEXT:
 			 /* Case for writing to child Stdin in text mode. */
-			 fd1 = _open_osfhandle((long)hChildStdinWrDup, mode);
+			 fd1 = _open_osfhandle((intptr_t)hChildStdinWrDup, mode);
 			 f1 = _fdopen(fd1, "w");
 			 f = PyFile_FromFile(f1, cmdstring, "w", _PyPclose);
 			 PyFile_SetBufSize(f, 0);
@@ -4531,7 +4532,7 @@
 
 		 case _O_RDONLY | _O_TEXT:
 			 /* Case for reading from child Stdout in text mode. */
-			 fd1 = _open_osfhandle((long)hChildStdoutRdDup, mode);
+			 fd1 = _open_osfhandle((intptr_t)hChildStdoutRdDup, mode);
 			 f1 = _fdopen(fd1, "r");
 			 f = PyFile_FromFile(f1, cmdstring, "r", _PyPclose);
 			 PyFile_SetBufSize(f, 0);
@@ -4542,7 +4543,7 @@
 
 		 case _O_RDONLY | _O_BINARY:
 			 /* Case for readinig from child Stdout in binary mode. */
-			 fd1 = _open_osfhandle((long)hChildStdoutRdDup, mode);
+			 fd1 = _open_osfhandle((intptr_t)hChildStdoutRdDup, mode);
 			 f1 = _fdopen(fd1, "rb");
 			 f = PyFile_FromFile(f1, cmdstring, "rb", _PyPclose);
 			 PyFile_SetBufSize(f, 0);
@@ -4553,7 +4554,7 @@
 
 		 case _O_WRONLY | _O_BINARY:
 			 /* Case for writing to child Stdin in binary mode. */
-			 fd1 = _open_osfhandle((long)hChildStdinWrDup, mode);
+			 fd1 = _open_osfhandle((intptr_t)hChildStdinWrDup, mode);
 			 f1 = _fdopen(fd1, "wb");
 			 f = PyFile_FromFile(f1, cmdstring, "wb", _PyPclose);
 			 PyFile_SetBufSize(f, 0);
@@ -4579,9 +4580,9 @@
 			 m2 = "wb";
 		 }
 
-		 fd1 = _open_osfhandle((long)hChildStdinWrDup, mode);
+		 fd1 = _open_osfhandle((intptr_t)hChildStdinWrDup, mode);
 		 f1 = _fdopen(fd1, m2);
-		 fd2 = _open_osfhandle((long)hChildStdoutRdDup, mode);
+		 fd2 = _open_osfhandle((intptr_t)hChildStdoutRdDup, mode);
 		 f2 = _fdopen(fd2, m1);
 		 p1 = PyFile_FromFile(f1, cmdstring, m2, _PyPclose);
 		 PyFile_SetBufSize(p1, 0);
@@ -4611,11 +4612,11 @@
 			 m2 = "wb";
 		 }
 
-		 fd1 = _open_osfhandle((long)hChildStdinWrDup, mode);
+		 fd1 = _open_osfhandle((intptr_t)hChildStdinWrDup, mode);
 		 f1 = _fdopen(fd1, m2);
-		 fd2 = _open_osfhandle((long)hChildStdoutRdDup, mode);
+		 fd2 = _open_osfhandle((intptr_t)hChildStdoutRdDup, mode);
 		 f2 = _fdopen(fd2, m1);
-		 fd3 = _open_osfhandle((long)hChildStderrRdDup, mode);
+		 fd3 = _open_osfhandle((intptr_t)hChildStderrRdDup, mode);
 		 f3 = _fdopen(fd3, m1);
 		 p1 = PyFile_FromFile(f1, cmdstring, m2, _PyPclose);
 		 p2 = PyFile_FromFile(f2, cmdstring, m1, _PyPclose);
@@ -5117,8 +5118,8 @@
 static PyObject *
 posix_waitpid(PyObject *self, PyObject *args)
 {
-	int pid, options;
-	int status;
+	intptr_t pid;
+	int status, options;
 
 	if (!PyArg_ParseTuple(args, "ii:waitpid", &pid, &options))
 		return NULL;
diff --git a/Modules/rgbimgmodule.c b/Modules/rgbimgmodule.c
index 8c70d95..67b5521 100644
--- a/Modules/rgbimgmodule.c
+++ b/Modules/rgbimgmodule.c
@@ -168,7 +168,7 @@
 	buf[1] = (unsigned char) (val >> 16);
 	buf[2] = (unsigned char) (val >> 8);
 	buf[3] = (unsigned char) (val >> 0);
-	return fwrite(buf, 4, 1, outf);
+	return (int)fwrite(buf, 4, 1, outf);
 }
 
 static void
@@ -200,7 +200,7 @@
 	putlong(outf, image->min);
 	putlong(outf, image->max);
 	putlong(outf, 0);
-	return fwrite("no name", 8, 1, outf);
+	return (int)fwrite("no name", 8, 1, outf);
 }
 
 static int
@@ -567,7 +567,8 @@
 	Py_Int32 *starttab = NULL, *lengthtab = NULL;
 	unsigned char *rlebuf = NULL;
 	unsigned char *lumbuf = NULL;
-	int rlebuflen, goodwrite;
+	int rlebuflen;
+	Py_ssize_t goodwrite;
 	PyObject *retval = NULL;
 
 	if (!PyArg_ParseTuple(args, "s#iiis:longstoimage", &lptr, &len,
diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index 53c68c1..c9d403a 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -340,7 +340,7 @@
 static int
 update_ufd_array(pollObject *self)
 {
-	int i, pos;
+	Py_ssize_t i, pos;
 	PyObject *key, *value;
 
 	self->ufd_len = PyDict_Size(self->dict);
diff --git a/Modules/shamodule.c b/Modules/shamodule.c
index 058391d..93a9224 100644
--- a/Modules/shamodule.c
+++ b/Modules/shamodule.c
@@ -543,7 +543,7 @@
 static PyObject *
 SHA_new(PyObject *self, PyObject *args, PyObject *kwdict)
 {
-    static char *kwlist[] = {"string", NULL};
+    static const char *kwlist[] = {"string", NULL};
     SHAobject *new;
     unsigned char *cp = NULL;
     int len;
diff --git a/Modules/stropmodule.c b/Modules/stropmodule.c
index 2917298..93dad8e 100644
--- a/Modules/stropmodule.c
+++ b/Modules/stropmodule.c
@@ -170,7 +170,7 @@
 	int i, reslen = 0, slen = 0, sz = 100;
 	PyObject *res = NULL;
 	char* p = NULL;
-	intargfunc getitemfunc;
+	ssizeargfunc getitemfunc;
 
 	WARN;
 	if (!PyArg_ParseTuple(args, "O|t#:join", &seq, &sep, &seplen))
@@ -364,7 +364,7 @@
 do_strip(PyObject *args, int striptype)
 {
 	char *s;
-	int len, i, j;
+	Py_ssize_t len, i, j;
 
 
 	if (PyString_AsStringAndSize(args, &s, &len))
@@ -443,7 +443,7 @@
 strop_lower(PyObject *self, PyObject *args)
 {
 	char *s, *s_new;
-	int i, n;
+	Py_ssize_t i, n;
 	PyObject *new;
 	int changed;
 
@@ -482,7 +482,7 @@
 strop_upper(PyObject *self, PyObject *args)
 {
 	char *s, *s_new;
-	int i, n;
+	Py_ssize_t i, n;
 	PyObject *new;
 	int changed;
 
@@ -522,7 +522,7 @@
 strop_capitalize(PyObject *self, PyObject *args)
 {
 	char *s, *s_new;
-	int i, n;
+	Py_ssize_t i, n;
 	PyObject *new;
 	int changed;
 
@@ -688,7 +688,7 @@
 strop_swapcase(PyObject *self, PyObject *args)
 {
 	char *s, *s_new;
-	int i, n;
+	Py_ssize_t i, n;
 	PyObject *new;
 	int changed;
 
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 937b0f7..be141d0 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -249,6 +249,7 @@
 			*p = SEP;
 	}
 	len += strlen(name);
+	assert(len < INT_MAX);
 	return (int)len;
 }
 
@@ -808,7 +809,8 @@
 	PyObject *raw_data, *data = NULL, *decompress;
 	char *buf;
 	FILE *fp;
-	int err, bytes_read = 0;
+	int err;
+	Py_ssize_t bytes_read = 0;
 	long l;
 	char *datapath;
 	long compress, data_size, file_size, file_offset;
@@ -1024,7 +1026,7 @@
 {
 	PyObject *toc_entry;
 	time_t mtime = 0;
-	int lastchar = strlen(path) - 1;
+	Py_ssize_t lastchar = strlen(path) - 1;
 	char savechar = path[lastchar];
 	path[lastchar] = '\0';  /* strip 'c' or 'o' from *.py[co] */
 	toc_entry = PyDict_GetItemString(self->files, path);