diff --git a/Objects/abstract.c b/Objects/abstract.c
index dac80d9..11adc77 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -1407,13 +1407,13 @@
 	}
 	PyErr_Clear();  /* It's not an error if  o.__trunc__ doesn't exist. */
 
-	if (PyString_Check(o))
+	if (PyBytes_Check(o))
 		/* need to do extra error checking that PyLong_FromString()
 		 * doesn't do.  In particular long('9.5') must raise an
 		 * exception, not truncate the float.
 		 */
-		return long_from_string(PyString_AS_STRING(o),
-					PyString_GET_SIZE(o));
+		return long_from_string(PyBytes_AS_STRING(o),
+					PyBytes_GET_SIZE(o));
 	if (PyUnicode_Check(o))
 		/* The above check is done in PyLong_FromUnicode(). */
 		return PyLong_FromUnicode(PyUnicode_AS_UNICODE(o),
diff --git a/Objects/bytes_methods.c b/Objects/bytes_methods.c
index de87905..2d55601 100644
--- a/Objects/bytes_methods.c
+++ b/Objects/bytes_methods.c
@@ -462,11 +462,11 @@
 	Py_ssize_t i;
 
         /*
-	newobj = PyString_FromStringAndSize(NULL, len);
+	newobj = PyBytes_FromStringAndSize(NULL, len);
 	if (!newobj)
 		return NULL;
 
-	s = PyString_AS_STRING(newobj);
+	s = PyBytes_AS_STRING(newobj);
         */
 
 	Py_MEMCPY(result, cptr, len);
@@ -490,11 +490,11 @@
 	Py_ssize_t i;
 
         /*
-	newobj = PyString_FromStringAndSize(NULL, len);
+	newobj = PyBytes_FromStringAndSize(NULL, len);
 	if (!newobj)
 		return NULL;
 
-	s = PyString_AS_STRING(newobj);
+	s = PyBytes_AS_STRING(newobj);
         */
 
 	Py_MEMCPY(result, cptr, len);
@@ -520,10 +520,10 @@
 	int previous_is_cased = 0;
 
         /*
-	newobj = PyString_FromStringAndSize(NULL, len);
+	newobj = PyBytes_FromStringAndSize(NULL, len);
 	if (newobj == NULL)
 		return NULL;
-	s_new = PyString_AsString(newobj);
+	s_new = PyBytes_AsString(newobj);
         */
 	for (i = 0; i < len; i++) {
 		int c = Py_CHARMASK(*s++);
@@ -553,10 +553,10 @@
 	Py_ssize_t i;
 
         /*
-	newobj = PyString_FromStringAndSize(NULL, len);
+	newobj = PyBytes_FromStringAndSize(NULL, len);
 	if (newobj == NULL)
 		return NULL;
-	s_new = PyString_AsString(newobj);
+	s_new = PyBytes_AsString(newobj);
         */
 	if (0 < len) {
 		int c = Py_CHARMASK(*s++);
@@ -589,10 +589,10 @@
 	Py_ssize_t i;
 
         /*
-	newobj = PyString_FromStringAndSize(NULL, len);
+	newobj = PyBytes_FromStringAndSize(NULL, len);
 	if (newobj == NULL)
 		return NULL;
-	s_new = PyString_AsString(newobj);
+	s_new = PyBytes_AsString(newobj);
         */
 	for (i = 0; i < len; i++) {
 		int c = Py_CHARMASK(*s++);
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index 98dc0f7..0a83725 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -728,7 +728,7 @@
         encoded = PyCodec_Encode(arg, encoding, errors);
         if (encoded == NULL)
             return -1;
-        assert(PyString_Check(encoded));
+        assert(PyBytes_Check(encoded));
         new = bytes_iconcat(self, encoded);
         Py_DECREF(encoded);
         if (new == NULL)
@@ -2895,7 +2895,7 @@
     /* XXX Shouldn't we use _getbuffer() on these items instead? */
     for (i = 0; i < n; i++) {
         PyObject *obj = items[i];
-        if (!PyByteArray_Check(obj) && !PyString_Check(obj)) {
+        if (!PyByteArray_Check(obj) && !PyBytes_Check(obj)) {
             PyErr_Format(PyExc_TypeError,
                          "can only join an iterable of bytes "
                          "(item %ld has type '%.100s')",
@@ -2924,7 +2924,7 @@
         if (PyByteArray_Check(obj))
            buf = PyByteArray_AS_STRING(obj);
         else
-           buf = PyString_AS_STRING(obj);
+           buf = PyBytes_AS_STRING(obj);
         if (i) {
             memcpy(dest, self->ob_bytes, mysize);
             dest += mysize;
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 9bb2ca6..cb8f3e4 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -63,7 +63,7 @@
 	    cellvars == NULL || !PyTuple_Check(cellvars) ||
 	    name == NULL || !PyUnicode_Check(name) ||
 	    filename == NULL || !PyUnicode_Check(filename) ||
-	    lnotab == NULL || !PyString_Check(lnotab) ||
+	    lnotab == NULL || !PyBytes_Check(lnotab) ||
 	    !PyObject_CheckReadBuffer(code)) {
 		PyErr_BadInternalCall();
 		return NULL;
@@ -478,8 +478,8 @@
 int
 PyCode_Addr2Line(PyCodeObject *co, int addrq)
 {
-	int size = PyString_Size(co->co_lnotab) / 2;
-	unsigned char *p = (unsigned char*)PyString_AsString(co->co_lnotab);
+	int size = PyBytes_Size(co->co_lnotab) / 2;
+	unsigned char *p = (unsigned char*)PyBytes_AsString(co->co_lnotab);
 	int line = co->co_firstlineno;
 	int addr = 0;
 	while (--size >= 0) {
@@ -574,8 +574,8 @@
         int size, addr, line;
         unsigned char* p;
 
-        p = (unsigned char*)PyString_AS_STRING(co->co_lnotab);
-        size = PyString_GET_SIZE(co->co_lnotab) / 2;
+        p = (unsigned char*)PyBytes_AS_STRING(co->co_lnotab);
+        size = PyBytes_GET_SIZE(co->co_lnotab) / 2;
 
         addr = 0;
         line = co->co_firstlineno;
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index 7b8dafa..aef0f94 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -1061,7 +1061,7 @@
         return NULL;
     }
 
-    if (!PyString_Check(attr)) {
+    if (!PyBytes_Check(attr)) {
         PyErr_Format(PyExc_TypeError, "%.200s attribute must be bytes", name);
         return NULL;
     }
@@ -1153,7 +1153,7 @@
     PyObject *obj = get_string(((PyUnicodeErrorObject *)exc)->object, "object");
     if (!obj)
         return -1;
-    size = PyString_GET_SIZE(obj);
+    size = PyBytes_GET_SIZE(obj);
     *start = ((PyUnicodeErrorObject *)exc)->start;
     if (*start<0)
         *start = 0;
@@ -1221,7 +1221,7 @@
     PyObject *obj = get_string(((PyUnicodeErrorObject *)exc)->object, "object");
     if (!obj)
         return -1;
-    size = PyString_GET_SIZE(obj);
+    size = PyBytes_GET_SIZE(obj);
     *end = ((PyUnicodeErrorObject *)exc)->end;
     if (*end<1)
         *end = 1;
@@ -1468,12 +1468,12 @@
              return -1;
     }
 
-    if (!PyString_Check(ude->object)) {
+    if (!PyBytes_Check(ude->object)) {
         if (PyObject_AsReadBuffer(ude->object, (const void **)&data, &size)) {
             ude->encoding = ude->object = ude->reason = NULL;
             return -1;
         }
-        ude->object = PyString_FromStringAndSize(data, size);
+        ude->object = PyBytes_FromStringAndSize(data, size);
     }
     else {
         Py_INCREF(ude->object);
@@ -1491,7 +1491,7 @@
     PyUnicodeErrorObject *uself = (PyUnicodeErrorObject *)self;
 
     if (uself->end==uself->start+1) {
-        int byte = (int)(PyString_AS_STRING(((PyUnicodeErrorObject *)self)->object)[uself->start]&0xff);
+        int byte = (int)(PyBytes_AS_STRING(((PyUnicodeErrorObject *)self)->object)[uself->start]&0xff);
         return PyUnicode_FromFormat(
             "'%U' codec can't decode byte 0x%02x in position %zd: %U",
             ((PyUnicodeErrorObject *)self)->encoding,
diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 9b3ff3e..cda8a40 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -81,7 +81,7 @@
 		result = PyEval_CallObject(reader, args);
 		Py_DECREF(reader);
 		Py_DECREF(args);
-		if (result != NULL && !PyString_Check(result) &&
+		if (result != NULL && !PyBytes_Check(result) &&
 		    !PyUnicode_Check(result)) {
 			Py_DECREF(result);
 			result = NULL;
@@ -90,9 +90,9 @@
 		}
 	}
 
-	if (n < 0 && result != NULL && PyString_Check(result)) {
-		char *s = PyString_AS_STRING(result);
-		Py_ssize_t len = PyString_GET_SIZE(result);
+	if (n < 0 && result != NULL && PyBytes_Check(result)) {
+		char *s = PyBytes_AS_STRING(result);
+		Py_ssize_t len = PyBytes_GET_SIZE(result);
 		if (len == 0) {
 			Py_DECREF(result);
 			result = NULL;
@@ -101,10 +101,10 @@
 		}
 		else if (s[len-1] == '\n') {
 			if (result->ob_refcnt == 1)
-				_PyString_Resize(&result, len-1);
+				_PyBytes_Resize(&result, len-1);
 			else {
 				PyObject *v;
-				v = PyString_FromStringAndSize(s, len-1);
+				v = PyBytes_FromStringAndSize(s, len-1);
 				Py_DECREF(result);
 				result = v;
 			}
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 7815f92..062e906 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -128,7 +128,7 @@
 
 	/* Find the bytecode offset for the start of the given line, or the
 	 * first code-owning line after it. */
-	PyString_AsStringAndSize(f->f_code->co_lnotab, &lnotab, &lnotab_len);
+	PyBytes_AsStringAndSize(f->f_code->co_lnotab, &lnotab, &lnotab_len);
 	addr = 0;
 	line = f->f_code->co_firstlineno;
 	new_lasti = -1;
@@ -151,7 +151,7 @@
 	}
 
 	/* We're now ready to look at the bytecode. */
-	PyString_AsStringAndSize(f->f_code->co_code, (char **)&code, &code_len);
+	PyBytes_AsStringAndSize(f->f_code->co_code, (char **)&code, &code_len);
 	min_addr = MIN(new_lasti, f->f_lasti);
 	max_addr = MAX(new_lasti, f->f_lasti);
 
diff --git a/Objects/longobject.c b/Objects/longobject.c
index d2557df..08e767e 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -3518,7 +3518,7 @@
 		return PyLong_FromUnicode(PyUnicode_AS_UNICODE(x),
 					  PyUnicode_GET_SIZE(x),
 					  base);
-	else if (PyByteArray_Check(x) || PyString_Check(x)) {
+	else if (PyByteArray_Check(x) || PyBytes_Check(x)) {
 		/* Since PyLong_FromString doesn't have a length parameter,
 		 * check here for possible NULs in the string. */
 		char *string;
@@ -3526,7 +3526,7 @@
 		if (PyByteArray_Check(x))
 			string = PyByteArray_AS_STRING(x);
 		else
-			string = PyString_AS_STRING(x);
+			string = PyBytes_AS_STRING(x);
 		if (strlen(string) != size) {
 			/* We only see this if there's a null byte in x,
 			   x is a bytes or buffer, *and* a base is given. */
diff --git a/Objects/object.c b/Objects/object.c
index 5dc3436..46cfdfe 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -291,9 +291,9 @@
 				s = PyObject_Repr(op);
 			if (s == NULL)
 				ret = -1;
-                        else if (PyString_Check(s)) {
-				fwrite(PyString_AS_STRING(s), 1,
-				       PyString_GET_SIZE(s), fp);
+                        else if (PyBytes_Check(s)) {
+				fwrite(PyBytes_AS_STRING(s), 1,
+				       PyBytes_GET_SIZE(s), fp);
 			}
 			else if (PyUnicode_Check(s)) {
 				PyObject *t;
@@ -301,8 +301,8 @@
 				if (t == NULL)
 					ret = 0;
 				else {
-					fwrite(PyString_AS_STRING(t), 1,
-					       PyString_GET_SIZE(t), fp);
+					fwrite(PyBytes_AS_STRING(t), 1,
+					       PyBytes_GET_SIZE(t), fp);
 				}
 			}
 			else {
@@ -1498,7 +1498,7 @@
 	if (PyType_Ready(&PyByteArray_Type) < 0)
 		Py_FatalError("Can't initialize 'bytes'");
 
-	if (PyType_Ready(&PyString_Type) < 0)
+	if (PyType_Ready(&PyBytes_Type) < 0)
 		Py_FatalError("Can't initialize 'str'");
 
 	if (PyType_Ready(&PyList_Type) < 0)
diff --git a/Objects/stringlib/formatter.h b/Objects/stringlib/formatter.h
index 22dd292..05ccfea 100644
--- a/Objects/stringlib/formatter.h
+++ b/Objects/stringlib/formatter.h
@@ -778,7 +778,7 @@
     /* This is to allow things like u''.format('') */
     if (!PyArg_ParseTuple(args, "O:__format__", &format_spec))
         goto done;
-    if (!(PyString_Check(format_spec) || PyUnicode_Check(format_spec))) {
+    if (!(PyBytes_Check(format_spec) || PyUnicode_Check(format_spec))) {
         PyErr_Format(PyExc_TypeError, "__format__ arg must be str "
 		     "or unicode, not %s", Py_TYPE(format_spec)->tp_name);
 	goto done;
diff --git a/Objects/stringlib/string_format.h b/Objects/stringlib/string_format.h
index be8e8080..2e9c7ef 100644
--- a/Objects/stringlib/string_format.h
+++ b/Objects/stringlib/string_format.h
@@ -496,7 +496,7 @@
 #if PY_VERSION_HEX >= 0x03000000
     assert(PyUnicode_Check(result));
 #else
-    assert(PyString_Check(result) || PyUnicode_Check(result));
+    assert(PyBytes_Check(result) || PyUnicode_Check(result));
 
     /* Convert result to our type.  We could be str, and result could
        be unicode */
diff --git a/Objects/stringlib/stringdefs.h b/Objects/stringlib/stringdefs.h
index daaa2e2..bdc3a29 100644
--- a/Objects/stringlib/stringdefs.h
+++ b/Objects/stringlib/stringdefs.h
@@ -6,7 +6,7 @@
    compiled as unicode. */
 #define STRINGLIB_IS_UNICODE     0
 
-#define STRINGLIB_OBJECT         PyStringObject
+#define STRINGLIB_OBJECT         PyBytesObject
 #define STRINGLIB_CHAR           char
 #define STRINGLIB_TYPE_NAME      "string"
 #define STRINGLIB_PARSE_CODE     "S"
@@ -16,13 +16,13 @@
 #define STRINGLIB_TOUPPER        toupper
 #define STRINGLIB_TOLOWER        tolower
 #define STRINGLIB_FILL           memset
-#define STRINGLIB_STR            PyString_AS_STRING
-#define STRINGLIB_LEN            PyString_GET_SIZE
-#define STRINGLIB_NEW            PyString_FromStringAndSize
-#define STRINGLIB_RESIZE         _PyString_Resize
-#define STRINGLIB_CHECK          PyString_Check
+#define STRINGLIB_STR            PyBytes_AS_STRING
+#define STRINGLIB_LEN            PyBytes_GET_SIZE
+#define STRINGLIB_NEW            PyBytes_FromStringAndSize
+#define STRINGLIB_RESIZE         _PyBytes_Resize
+#define STRINGLIB_CHECK          PyBytes_Check
 #define STRINGLIB_CMP            memcmp
 #define STRINGLIB_TOSTR          PyObject_Str
-#define STRINGLIB_GROUPING       _PyString_InsertThousandsGrouping
+#define STRINGLIB_GROUPING       _PyBytes_InsertThousandsGrouping
 
 #endif /* !STRINGLIB_STRINGDEFS_H */
diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index 70f3a6c..b9ba73f 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -31,23 +31,23 @@
 int null_strings, one_strings;
 #endif
 
-static PyStringObject *characters[UCHAR_MAX + 1];
-static PyStringObject *nullstring;
+static PyBytesObject *characters[UCHAR_MAX + 1];
+static PyBytesObject *nullstring;
 
 /*
-   For both PyString_FromString() and PyString_FromStringAndSize(), the
+   For both PyBytes_FromString() and PyBytes_FromStringAndSize(), the
    parameter `size' denotes number of characters to allocate, not counting any
    null terminating character.
 
-   For PyString_FromString(), the parameter `str' points to a null-terminated
+   For PyBytes_FromString(), the parameter `str' points to a null-terminated
    string containing exactly `size' bytes.
 
-   For PyString_FromStringAndSize(), the parameter the parameter `str' is
+   For PyBytes_FromStringAndSize(), the parameter the parameter `str' is
    either NULL or else points to a string containing at least `size' bytes.
-   For PyString_FromStringAndSize(), the string in the `str' parameter does
+   For PyBytes_FromStringAndSize(), the string in the `str' parameter does
    not have to be null-terminated.  (Therefore it is safe to construct a
-   substring by calling `PyString_FromStringAndSize(origstring, substrlen)'.)
-   If `str' is NULL then PyString_FromStringAndSize() will allocate `size+1'
+   substring by calling `PyBytes_FromStringAndSize(origstring, substrlen)'.)
+   If `str' is NULL then PyBytes_FromStringAndSize() will allocate `size+1'
    bytes (setting the last byte to the null terminating character) and you can
    fill in the data yourself.  If `str' is non-NULL then the resulting
    PyString object must be treated as immutable and you must not fill in nor
@@ -57,16 +57,16 @@
    items" in a variable-size object, will contain the number of bytes
    allocated for string data, not counting the null terminating character.  It
    is therefore equal to the equal to the `size' parameter (for
-   PyString_FromStringAndSize()) or the length of the string in the `str'
-   parameter (for PyString_FromString()).
+   PyBytes_FromStringAndSize()) or the length of the string in the `str'
+   parameter (for PyBytes_FromString()).
 */
 PyObject *
-PyString_FromStringAndSize(const char *str, Py_ssize_t size)
+PyBytes_FromStringAndSize(const char *str, Py_ssize_t size)
 {
-	register PyStringObject *op;
+	register PyBytesObject *op;
 	if (size < 0) {
 		PyErr_SetString(PyExc_SystemError,
-		    "Negative size passed to PyString_FromStringAndSize");
+		    "Negative size passed to PyBytes_FromStringAndSize");
 		return NULL;
 	}
 	if (size == 0 && (op = nullstring) != NULL) {
@@ -87,10 +87,10 @@
 	}
 
 	/* Inline PyObject_NewVar */
-	op = (PyStringObject *)PyObject_MALLOC(sizeof(PyStringObject) + size);
+	op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
 	if (op == NULL)
 		return PyErr_NoMemory();
-	PyObject_INIT_VAR(op, &PyString_Type, size);
+	PyObject_INIT_VAR(op, &PyBytes_Type, size);
 	op->ob_shash = -1;
 	if (str != NULL)
 		Py_MEMCPY(op->ob_sval, str, size);
@@ -107,10 +107,10 @@
 }
 
 PyObject *
-PyString_FromString(const char *str)
+PyBytes_FromString(const char *str)
 {
 	register size_t size;
-	register PyStringObject *op;
+	register PyBytesObject *op;
 
 	assert(str != NULL);
 	size = strlen(str);
@@ -135,10 +135,10 @@
 	}
 
 	/* Inline PyObject_NewVar */
-	op = (PyStringObject *)PyObject_MALLOC(sizeof(PyStringObject) + size);
+	op = (PyBytesObject *)PyObject_MALLOC(sizeof(PyBytesObject) + size);
 	if (op == NULL)
 		return PyErr_NoMemory();
-	PyObject_INIT_VAR(op, &PyString_Type, size);
+	PyObject_INIT_VAR(op, &PyBytes_Type, size);
 	op->ob_shash = -1;
 	Py_MEMCPY(op->ob_sval, str, size+1);
 	/* share short strings */
@@ -153,7 +153,7 @@
 }
 
 PyObject *
-PyString_FromFormatV(const char *format, va_list vargs)
+PyBytes_FromFormatV(const char *format, va_list vargs)
 {
 	va_list count;
 	Py_ssize_t n = 0;
@@ -228,11 +228,11 @@
 	/* step 2: fill the buffer */
 	/* Since we've analyzed how much space we need for the worst case,
 	   use sprintf directly instead of the slower PyOS_snprintf. */
-	string = PyString_FromStringAndSize(NULL, n);
+	string = PyBytes_FromStringAndSize(NULL, n);
 	if (!string)
 		return NULL;
 
-	s = PyString_AsString(string);
+	s = PyBytes_AsString(string);
 
 	for (f = format; *f; f++) {
 		if (*f == '%') {
@@ -332,12 +332,12 @@
 	}
 
  end:
-	_PyString_Resize(&string, s - PyString_AS_STRING(string));
+	_PyBytes_Resize(&string, s - PyBytes_AS_STRING(string));
 	return string;
 }
 
 PyObject *
-PyString_FromFormat(const char *format, ...)
+PyBytes_FromFormat(const char *format, ...)
 {
 	PyObject* ret;
 	va_list vargs;
@@ -347,7 +347,7 @@
 #else
 	va_start(vargs);
 #endif
-	ret = PyString_FromFormatV(format, vargs);
+	ret = PyBytes_FromFormatV(format, vargs);
 	va_end(vargs);
 	return ret;
 }
@@ -363,7 +363,7 @@
    the string is UTF-8 encoded and should be re-encoded in the
    specified encoding.  */
 
-PyObject *PyString_DecodeEscape(const char *s,
+PyObject *PyBytes_DecodeEscape(const char *s,
 				Py_ssize_t len,
 				const char *errors,
 				Py_ssize_t unicode,
@@ -374,10 +374,10 @@
 	const char *end;
 	PyObject *v;
 	Py_ssize_t newlen = recode_encoding ? 4*len:len;
-	v = PyString_FromStringAndSize((char *)NULL, newlen);
+	v = PyBytes_FromStringAndSize((char *)NULL, newlen);
 	if (v == NULL)
 		return NULL;
-	p = buf = PyString_AsString(v);
+	p = buf = PyBytes_AsString(v);
 	end = s + len;
 	while (s < end) {
 		if (*s != '\\') {
@@ -400,9 +400,9 @@
 				if (!w)	goto failed;
 
 				/* Append bytes to output buffer. */
-				assert(PyString_Check(w));
-				r = PyString_AS_STRING(w);
-				rn = PyString_GET_SIZE(w);
+				assert(PyBytes_Check(w));
+				r = PyBytes_AS_STRING(w);
+				rn = PyBytes_GET_SIZE(w);
 				Py_MEMCPY(p, r, rn);
 				p += rn;
 				Py_DECREF(w);
@@ -488,7 +488,7 @@
 		}
 	}
 	if (p-buf < newlen)
-		_PyString_Resize(&v, p - buf);
+		_PyBytes_Resize(&v, p - buf);
 	return v;
   failed:
 	Py_DECREF(v);
@@ -499,9 +499,9 @@
 /* object api */
 
 Py_ssize_t
-PyString_Size(register PyObject *op)
+PyBytes_Size(register PyObject *op)
 {
-	if (!PyString_Check(op)) {
+	if (!PyBytes_Check(op)) {
 		PyErr_Format(PyExc_TypeError,
 		     "expected bytes, %.200s found", Py_TYPE(op)->tp_name);
 		return -1;
@@ -510,18 +510,18 @@
 }
 
 char *
-PyString_AsString(register PyObject *op)
+PyBytes_AsString(register PyObject *op)
 {
-	if (!PyString_Check(op)) {
+	if (!PyBytes_Check(op)) {
 		PyErr_Format(PyExc_TypeError,
 		     "expected bytes, %.200s found", Py_TYPE(op)->tp_name);
 		return NULL;
 	}
-	return ((PyStringObject *)op)->ob_sval;
+	return ((PyBytesObject *)op)->ob_sval;
 }
 
 int
-PyString_AsStringAndSize(register PyObject *obj,
+PyBytes_AsStringAndSize(register PyObject *obj,
 			 register char **s,
 			 register Py_ssize_t *len)
 {
@@ -530,16 +530,16 @@
 		return -1;
 	}
 
-	if (!PyString_Check(obj)) {
+	if (!PyBytes_Check(obj)) {
 		PyErr_Format(PyExc_TypeError,
 		     "expected bytes, %.200s found", Py_TYPE(obj)->tp_name);
 		return -1;
 	}
 
-	*s = PyString_AS_STRING(obj);
+	*s = PyBytes_AS_STRING(obj);
 	if (len != NULL)
-		*len = PyString_GET_SIZE(obj);
-	else if (strlen(*s) != (size_t)PyString_GET_SIZE(obj)) {
+		*len = PyBytes_GET_SIZE(obj);
+	else if (strlen(*s) != (size_t)PyBytes_GET_SIZE(obj)) {
 		PyErr_SetString(PyExc_TypeError,
 				"expected bytes with no null");
 		return -1;
@@ -553,13 +553,13 @@
 #define STRINGLIB_CHAR char
 
 #define STRINGLIB_CMP memcmp
-#define STRINGLIB_LEN PyString_GET_SIZE
-#define STRINGLIB_NEW PyString_FromStringAndSize
-#define STRINGLIB_STR PyString_AS_STRING
+#define STRINGLIB_LEN PyBytes_GET_SIZE
+#define STRINGLIB_NEW PyBytes_FromStringAndSize
+#define STRINGLIB_STR PyBytes_AS_STRING
 /* #define STRINGLIB_WANT_CONTAINS_OBJ 1 */
 
 #define STRINGLIB_EMPTY nullstring
-#define STRINGLIB_CHECK_EXACT PyString_CheckExact
+#define STRINGLIB_CHECK_EXACT PyBytes_CheckExact
 #define STRINGLIB_MUTABLE 0
 
 #include "stringlib/fastsearch.h"
@@ -570,14 +570,14 @@
 #include "stringlib/ctype.h"
 #include "stringlib/transmogrify.h"
 
-#define _Py_InsertThousandsGrouping _PyString_InsertThousandsGrouping
+#define _Py_InsertThousandsGrouping _PyBytes_InsertThousandsGrouping
 #include "stringlib/localeutil.h"
 
 PyObject *
-PyString_Repr(PyObject *obj, int smartquotes)
+PyBytes_Repr(PyObject *obj, int smartquotes)
 {
 	static const char *hexdigits = "0123456789abcdef";
-	register PyStringObject* op = (PyStringObject*) obj;
+	register PyBytesObject* op = (PyBytesObject*) obj;
 	Py_ssize_t length = Py_SIZE(op);
 	size_t newsize = 3 + 4 * length;
 	PyObject *v;
@@ -600,7 +600,7 @@
 		quote = '\'';
 		if (smartquotes) {
 			char *test, *start;
-			start = PyString_AS_STRING(op);
+			start = PyBytes_AS_STRING(op);
 			for (test = start; test < start+length; ++test) {
 				if (*test == '"') {
 					quote = '\''; /* back to single */
@@ -650,7 +650,7 @@
 static PyObject *
 string_repr(PyObject *op)
 {
-	return PyString_Repr(op, 1);
+	return PyBytes_Repr(op, 1);
 }
 
 static PyObject *
@@ -665,12 +665,12 @@
 }
 
 static Py_ssize_t
-string_length(PyStringObject *a)
+string_length(PyBytesObject *a)
 {
 	return Py_SIZE(a);
 }
 
-/* This is also used by PyString_Concat() */
+/* This is also used by PyBytes_Concat() */
 static PyObject *
 string_concat(PyObject *a, PyObject *b)
 {
@@ -688,12 +688,12 @@
 	}
 
 	/* Optimize end cases */
-	if (va.len == 0 && PyString_CheckExact(b)) {
+	if (va.len == 0 && PyBytes_CheckExact(b)) {
 		result = b;
 		Py_INCREF(result);
 		goto done;
 	}
-	if (vb.len == 0 && PyString_CheckExact(a)) {
+	if (vb.len == 0 && PyBytes_CheckExact(a)) {
 		result = a;
 		Py_INCREF(result);
 		goto done;
@@ -705,10 +705,10 @@
 		goto done;
 	}
 
-	result = PyString_FromStringAndSize(NULL, size);
+	result = PyBytes_FromStringAndSize(NULL, size);
 	if (result != NULL) {
-		memcpy(PyString_AS_STRING(result), va.buf, va.len);
-		memcpy(PyString_AS_STRING(result) + va.len, vb.buf, vb.len);
+		memcpy(PyBytes_AS_STRING(result), va.buf, va.len);
+		memcpy(PyBytes_AS_STRING(result) + va.len, vb.buf, vb.len);
 	}
 
   done:
@@ -720,12 +720,12 @@
 }
 
 static PyObject *
-string_repeat(register PyStringObject *a, register Py_ssize_t n)
+string_repeat(register PyBytesObject *a, register Py_ssize_t n)
 {
 	register Py_ssize_t i;
 	register Py_ssize_t j;
 	register Py_ssize_t size;
-	register PyStringObject *op;
+	register PyBytesObject *op;
 	size_t nbytes;
 	if (n < 0)
 		n = 0;
@@ -738,21 +738,21 @@
 			"repeated string is too long");
 		return NULL;
 	}
-	if (size == Py_SIZE(a) && PyString_CheckExact(a)) {
+	if (size == Py_SIZE(a) && PyBytes_CheckExact(a)) {
 		Py_INCREF(a);
 		return (PyObject *)a;
 	}
 	nbytes = (size_t)size;
-	if (nbytes + sizeof(PyStringObject) <= nbytes) {
+	if (nbytes + sizeof(PyBytesObject) <= nbytes) {
 		PyErr_SetString(PyExc_OverflowError,
 			"repeated string is too long");
 		return NULL;
 	}
-	op = (PyStringObject *)
-		PyObject_MALLOC(sizeof(PyStringObject) + nbytes);
+	op = (PyBytesObject *)
+		PyObject_MALLOC(sizeof(PyBytesObject) + nbytes);
 	if (op == NULL)
 		return PyErr_NoMemory();
-	PyObject_INIT_VAR(op, &PyString_Type, size);
+	PyObject_INIT_VAR(op, &PyBytes_Type, size);
 	op->ob_shash = -1;
 	op->ob_sval[size] = '\0';
 	if (Py_SIZE(a) == 1 && n > 0) {
@@ -782,7 +782,7 @@
         PyErr_Clear();
         if (_getbuffer(arg, &varg) < 0)
             return -1;
-        pos = stringlib_find(PyString_AS_STRING(self), Py_SIZE(self),
+        pos = stringlib_find(PyBytes_AS_STRING(self), Py_SIZE(self),
                              varg.buf, varg.len, 0);
         PyObject_ReleaseBuffer(arg, &varg);
         return pos >= 0;
@@ -792,11 +792,11 @@
         return -1;
     }
 
-    return memchr(PyString_AS_STRING(self), ival, Py_SIZE(self)) != NULL;
+    return memchr(PyBytes_AS_STRING(self), ival, Py_SIZE(self)) != NULL;
 }
 
 static PyObject *
-string_item(PyStringObject *a, register Py_ssize_t i)
+string_item(PyBytesObject *a, register Py_ssize_t i)
 {
 	if (i < 0 || i >= Py_SIZE(a)) {
 		PyErr_SetString(PyExc_IndexError, "string index out of range");
@@ -806,7 +806,7 @@
 }
 
 static PyObject*
-string_richcompare(PyStringObject *a, PyStringObject *b, int op)
+string_richcompare(PyBytesObject *a, PyBytesObject *b, int op)
 {
 	int c;
 	Py_ssize_t len_a, len_b;
@@ -814,7 +814,7 @@
 	PyObject *result;
 
 	/* Make sure both arguments are strings. */
-	if (!(PyString_Check(a) && PyString_Check(b))) {
+	if (!(PyBytes_Check(a) && PyBytes_Check(b))) {
 		if (Py_BytesWarningFlag && (op == Py_EQ) &&
 		    (PyObject_IsInstance((PyObject*)a,
 					 (PyObject*)&PyUnicode_Type) ||
@@ -877,7 +877,7 @@
 }
 
 static long
-string_hash(PyStringObject *a)
+string_hash(PyBytesObject *a)
 {
 	register Py_ssize_t len;
 	register unsigned char *p;
@@ -898,15 +898,15 @@
 }
 
 static PyObject*
-string_subscript(PyStringObject* self, PyObject* item)
+string_subscript(PyBytesObject* self, PyObject* item)
 {
 	if (PyIndex_Check(item)) {
 		Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
 		if (i == -1 && PyErr_Occurred())
 			return NULL;
 		if (i < 0)
-			i += PyString_GET_SIZE(self);
-		if (i < 0 || i >= PyString_GET_SIZE(self)) {
+			i += PyBytes_GET_SIZE(self);
+		if (i < 0 || i >= PyBytes_GET_SIZE(self)) {
 			PyErr_SetString(PyExc_IndexError,
 					"string index out of range");
 			return NULL;
@@ -920,27 +920,27 @@
 		PyObject* result;
 
 		if (PySlice_GetIndicesEx((PySliceObject*)item,
-				 PyString_GET_SIZE(self),
+				 PyBytes_GET_SIZE(self),
 				 &start, &stop, &step, &slicelength) < 0) {
 			return NULL;
 		}
 
 		if (slicelength <= 0) {
-			return PyString_FromStringAndSize("", 0);
+			return PyBytes_FromStringAndSize("", 0);
 		}
 		else if (start == 0 && step == 1 &&
-			 slicelength == PyString_GET_SIZE(self) &&
-			 PyString_CheckExact(self)) {
+			 slicelength == PyBytes_GET_SIZE(self) &&
+			 PyBytes_CheckExact(self)) {
 			Py_INCREF(self);
 			return (PyObject *)self;
 		}
 		else if (step == 1) {
-			return PyString_FromStringAndSize(
-				PyString_AS_STRING(self) + start,
+			return PyBytes_FromStringAndSize(
+				PyBytes_AS_STRING(self) + start,
 				slicelength);
 		}
 		else {
-			source_buf = PyString_AsString((PyObject*)self);
+			source_buf = PyBytes_AsString((PyObject*)self);
 			result_buf = (char *)PyMem_Malloc(slicelength);
 			if (result_buf == NULL)
 				return PyErr_NoMemory();
@@ -950,7 +950,7 @@
 				result_buf[i] = source_buf[cur];
 			}
 
-			result = PyString_FromStringAndSize(result_buf,
+			result = PyBytes_FromStringAndSize(result_buf,
 							    slicelength);
 			PyMem_Free(result_buf);
 			return result;
@@ -965,7 +965,7 @@
 }
 
 static int
-string_buffer_getbuffer(PyStringObject *self, Py_buffer *view, int flags)
+string_buffer_getbuffer(PyBytesObject *self, Py_buffer *view, int flags)
 {
 	return PyBuffer_FillInfo(view, (void *)self->ob_sval, Py_SIZE(self),
 				 0, flags);
@@ -1025,7 +1025,7 @@
 	(maxsplit >= MAX_PREALLOC ? MAX_PREALLOC : maxsplit+1)
 
 #define SPLIT_ADD(data, left, right) {				\
-	str = PyString_FromStringAndSize((data) + (left),	\
+	str = PyBytes_FromStringAndSize((data) + (left),	\
 					 (right) - (left));	\
 	if (str == NULL)					\
 		goto onError;					\
@@ -1050,9 +1050,9 @@
 #define RSKIP_NONSPACE(s, i)     { while (i>=0  && !ISSPACE(s[i])) i--; }
 
 Py_LOCAL_INLINE(PyObject *)
-split_whitespace(PyStringObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
+split_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
 {
-	const char *s = PyString_AS_STRING(self);
+	const char *s = PyBytes_AS_STRING(self);
 	Py_ssize_t i, j, count=0;
 	PyObject *str;
 	PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
@@ -1067,7 +1067,7 @@
 		if (i==len) break;
 		j = i; i++;
 		SKIP_NONSPACE(s, i, len);
-		if (j == 0 && i == len && PyString_CheckExact(self)) {
+		if (j == 0 && i == len && PyBytes_CheckExact(self)) {
 			/* No whitespace in self, so just use it as list[0] */
 			Py_INCREF(self);
 			PyList_SET_ITEM(list, 0, (PyObject *)self);
@@ -1092,9 +1092,9 @@
 }
 
 Py_LOCAL_INLINE(PyObject *)
-split_char(PyStringObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+split_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
 {
-	const char *s = PyString_AS_STRING(self);
+	const char *s = PyBytes_AS_STRING(self);
 	register Py_ssize_t i, j, count=0;
 	PyObject *str;
 	PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
@@ -1113,7 +1113,7 @@
 			}
 		}
 	}
-	if (i == 0 && count == 0 && PyString_CheckExact(self)) {
+	if (i == 0 && count == 0 && PyBytes_CheckExact(self)) {
 		/* ch not in self, so just use self as list[0] */
 		Py_INCREF(self);
 		PyList_SET_ITEM(list, 0, (PyObject *)self);
@@ -1139,11 +1139,11 @@
 If maxsplit is given, at most maxsplit splits are done.");
 
 static PyObject *
-string_split(PyStringObject *self, PyObject *args)
+string_split(PyBytesObject *self, PyObject *args)
 {
-	Py_ssize_t len = PyString_GET_SIZE(self), n, i, j;
+	Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
 	Py_ssize_t maxsplit = -1, count=0;
-	const char *s = PyString_AS_STRING(self), *sub;
+	const char *s = PyBytes_AS_STRING(self), *sub;
 	Py_buffer vsub;
 	PyObject *list, *str, *subobj = Py_None;
 #ifdef USE_FAST
@@ -1216,21 +1216,21 @@
 found, returns B and two empty bytes objects.");
 
 static PyObject *
-string_partition(PyStringObject *self, PyObject *sep_obj)
+string_partition(PyBytesObject *self, PyObject *sep_obj)
 {
 	const char *sep;
 	Py_ssize_t sep_len;
 
-	if (PyString_Check(sep_obj)) {
-		sep = PyString_AS_STRING(sep_obj);
-		sep_len = PyString_GET_SIZE(sep_obj);
+	if (PyBytes_Check(sep_obj)) {
+		sep = PyBytes_AS_STRING(sep_obj);
+		sep_len = PyBytes_GET_SIZE(sep_obj);
 	}
 	else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
 		return NULL;
 
 	return stringlib_partition(
 		(PyObject*) self,
-		PyString_AS_STRING(self), PyString_GET_SIZE(self),
+		PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
 		sep_obj, sep, sep_len
 		);
 }
@@ -1244,29 +1244,29 @@
 bytes objects and B.");
 
 static PyObject *
-string_rpartition(PyStringObject *self, PyObject *sep_obj)
+string_rpartition(PyBytesObject *self, PyObject *sep_obj)
 {
 	const char *sep;
 	Py_ssize_t sep_len;
 
-	if (PyString_Check(sep_obj)) {
-		sep = PyString_AS_STRING(sep_obj);
-		sep_len = PyString_GET_SIZE(sep_obj);
+	if (PyBytes_Check(sep_obj)) {
+		sep = PyBytes_AS_STRING(sep_obj);
+		sep_len = PyBytes_GET_SIZE(sep_obj);
 	}
 	else if (PyObject_AsCharBuffer(sep_obj, &sep, &sep_len))
 		return NULL;
 
 	return stringlib_rpartition(
 		(PyObject*) self,
-		PyString_AS_STRING(self), PyString_GET_SIZE(self),
+		PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
 		sep_obj, sep, sep_len
 		);
 }
 
 Py_LOCAL_INLINE(PyObject *)
-rsplit_whitespace(PyStringObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
+rsplit_whitespace(PyBytesObject *self, Py_ssize_t len, Py_ssize_t maxsplit)
 {
-	const char *s = PyString_AS_STRING(self);
+	const char *s = PyBytes_AS_STRING(self);
 	Py_ssize_t i, j, count=0;
 	PyObject *str;
 	PyObject *list = PyList_New(PREALLOC_SIZE(maxsplit));
@@ -1281,7 +1281,7 @@
 		if (i<0) break;
 		j = i; i--;
 		RSKIP_NONSPACE(s, i);
-		if (j == len-1 && i < 0 && PyString_CheckExact(self)) {
+		if (j == len-1 && i < 0 && PyBytes_CheckExact(self)) {
 			/* No whitespace in self, so just use it as list[0] */
 			Py_INCREF(self);
 			PyList_SET_ITEM(list, 0, (PyObject *)self);
@@ -1308,9 +1308,9 @@
 }
 
 Py_LOCAL_INLINE(PyObject *)
-rsplit_char(PyStringObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
+rsplit_char(PyBytesObject *self, Py_ssize_t len, char ch, Py_ssize_t maxcount)
 {
-	const char *s = PyString_AS_STRING(self);
+	const char *s = PyBytes_AS_STRING(self);
 	register Py_ssize_t i, j, count=0;
 	PyObject *str;
 	PyObject *list = PyList_New(PREALLOC_SIZE(maxcount));
@@ -1328,7 +1328,7 @@
 			}
 		}
 	}
-	if (i < 0 && count == 0 && PyString_CheckExact(self)) {
+	if (i < 0 && count == 0 && PyBytes_CheckExact(self)) {
 		/* ch not in self, so just use self as list[0] */
 		Py_INCREF(self);
 		PyList_SET_ITEM(list, 0, (PyObject *)self);
@@ -1358,9 +1358,9 @@
 
 
 static PyObject *
-string_rsplit(PyStringObject *self, PyObject *args)
+string_rsplit(PyBytesObject *self, PyObject *args)
 {
-	Py_ssize_t len = PyString_GET_SIZE(self), n, i, j;
+	Py_ssize_t len = PyBytes_GET_SIZE(self), n, i, j;
 	Py_ssize_t maxsplit = -1, count=0;
 	const char *s, *sub;
 	Py_buffer vsub;
@@ -1394,7 +1394,7 @@
 	j = len;
 	i = j - n;
 
-	s = PyString_AS_STRING(self);
+	s = PyBytes_AS_STRING(self);
 	while ( (i >= 0) && (maxsplit-- > 0) ) {
 		for (; i>=0; i--) {
 			if (Py_STRING_MATCH(s, i, sub, n)) {
@@ -1432,8 +1432,8 @@
 static PyObject *
 string_join(PyObject *self, PyObject *orig)
 {
-	char *sep = PyString_AS_STRING(self);
-	const Py_ssize_t seplen = PyString_GET_SIZE(self);
+	char *sep = PyBytes_AS_STRING(self);
+	const Py_ssize_t seplen = PyBytes_GET_SIZE(self);
 	PyObject *res = NULL;
 	char *p;
 	Py_ssize_t seqlen = 0;
@@ -1449,11 +1449,11 @@
 	seqlen = PySequence_Size(seq);
 	if (seqlen == 0) {
 		Py_DECREF(seq);
-		return PyString_FromString("");
+		return PyBytes_FromString("");
 	}
 	if (seqlen == 1) {
 		item = PySequence_Fast_GET_ITEM(seq, 0);
-		if (PyString_CheckExact(item)) {
+		if (PyBytes_CheckExact(item)) {
 			Py_INCREF(item);
 			Py_DECREF(seq);
 			return item;
@@ -1469,7 +1469,7 @@
 	for (i = 0; i < seqlen; i++) {
 		const size_t old_sz = sz;
 		item = PySequence_Fast_GET_ITEM(seq, i);
-		if (!PyString_Check(item) && !PyByteArray_Check(item)) {
+		if (!PyBytes_Check(item) && !PyByteArray_Check(item)) {
 			PyErr_Format(PyExc_TypeError,
 				     "sequence item %zd: expected bytes,"
 				     " %.80s found",
@@ -1489,7 +1489,7 @@
 	}
 
 	/* Allocate result space. */
-	res = PyString_FromStringAndSize((char*)NULL, sz);
+	res = PyBytes_FromStringAndSize((char*)NULL, sz);
 	if (res == NULL) {
 		Py_DECREF(seq);
 		return NULL;
@@ -1498,7 +1498,7 @@
 	/* Catenate everything. */
 	/* I'm not worried about a PyByteArray item growing because there's
 	   nowhere in this function where we release the GIL. */
-	p = PyString_AS_STRING(res);
+	p = PyBytes_AS_STRING(res);
 	for (i = 0; i < seqlen; ++i) {
 		size_t n;
                 char *q;
@@ -1508,8 +1508,8 @@
 		}
 		item = PySequence_Fast_GET_ITEM(seq, i);
 		n = Py_SIZE(item);
-                if (PyString_Check(item))
-			q = PyString_AS_STRING(item);
+                if (PyBytes_Check(item))
+			q = PyBytes_AS_STRING(item);
 		else
 			q = PyByteArray_AS_STRING(item);
 		Py_MEMCPY(p, q, n);
@@ -1521,9 +1521,9 @@
 }
 
 PyObject *
-_PyString_Join(PyObject *sep, PyObject *x)
+_PyBytes_Join(PyObject *sep, PyObject *x)
 {
-	assert(sep != NULL && PyString_Check(sep));
+	assert(sep != NULL && PyBytes_Check(sep));
 	assert(x != NULL);
 	return string_join(sep, x);
 }
@@ -1544,7 +1544,7 @@
 }
 
 Py_LOCAL_INLINE(Py_ssize_t)
-string_find_internal(PyStringObject *self, PyObject *args, int dir)
+string_find_internal(PyBytesObject *self, PyObject *args, int dir)
 {
 	PyObject *subobj;
 	const char *sub;
@@ -1565,9 +1565,9 @@
 		if (!_PyEval_SliceIndex(obj_end, &end))
 	        return -2;
 
-	if (PyString_Check(subobj)) {
-		sub = PyString_AS_STRING(subobj);
-		sub_len = PyString_GET_SIZE(subobj);
+	if (PyBytes_Check(subobj)) {
+		sub = PyBytes_AS_STRING(subobj);
+		sub_len = PyBytes_GET_SIZE(subobj);
 	}
 	else if (PyObject_AsCharBuffer(subobj, &sub, &sub_len))
 		/* XXX - the "expected a character buffer object" is pretty
@@ -1576,11 +1576,11 @@
 
 	if (dir > 0)
 		return stringlib_find_slice(
-			PyString_AS_STRING(self), PyString_GET_SIZE(self),
+			PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
 			sub, sub_len, start, end);
 	else
 		return stringlib_rfind_slice(
-			PyString_AS_STRING(self), PyString_GET_SIZE(self),
+			PyBytes_AS_STRING(self), PyBytes_GET_SIZE(self),
 			sub, sub_len, start, end);
 }
 
@@ -1595,7 +1595,7 @@
 Return -1 on failure.");
 
 static PyObject *
-string_find(PyStringObject *self, PyObject *args)
+string_find(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t result = string_find_internal(self, args, +1);
 	if (result == -2)
@@ -1610,7 +1610,7 @@
 Like B.find() but raise ValueError when the substring is not found.");
 
 static PyObject *
-string_index(PyStringObject *self, PyObject *args)
+string_index(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t result = string_find_internal(self, args, +1);
 	if (result == -2)
@@ -1634,7 +1634,7 @@
 Return -1 on failure.");
 
 static PyObject *
-string_rfind(PyStringObject *self, PyObject *args)
+string_rfind(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t result = string_find_internal(self, args, -1);
 	if (result == -2)
@@ -1649,7 +1649,7 @@
 Like B.rfind() but raise ValueError when the substring is not found.");
 
 static PyObject *
-string_rindex(PyStringObject *self, PyObject *args)
+string_rindex(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t result = string_find_internal(self, args, -1);
 	if (result == -2)
@@ -1664,11 +1664,11 @@
 
 
 Py_LOCAL_INLINE(PyObject *)
-do_xstrip(PyStringObject *self, int striptype, PyObject *sepobj)
+do_xstrip(PyBytesObject *self, int striptype, PyObject *sepobj)
 {
 	Py_buffer vsep;
-	char *s = PyString_AS_STRING(self);
-	Py_ssize_t len = PyString_GET_SIZE(self);
+	char *s = PyBytes_AS_STRING(self);
+	Py_ssize_t len = PyBytes_GET_SIZE(self);
 	char *sep;
 	Py_ssize_t seplen;
 	Py_ssize_t i, j;
@@ -1695,20 +1695,20 @@
 
 	PyObject_ReleaseBuffer(sepobj, &vsep);
 
-	if (i == 0 && j == len && PyString_CheckExact(self)) {
+	if (i == 0 && j == len && PyBytes_CheckExact(self)) {
 		Py_INCREF(self);
 		return (PyObject*)self;
 	}
 	else
-		return PyString_FromStringAndSize(s+i, j-i);
+		return PyBytes_FromStringAndSize(s+i, j-i);
 }
 
 
 Py_LOCAL_INLINE(PyObject *)
-do_strip(PyStringObject *self, int striptype)
+do_strip(PyBytesObject *self, int striptype)
 {
-	char *s = PyString_AS_STRING(self);
-	Py_ssize_t len = PyString_GET_SIZE(self), i, j;
+	char *s = PyBytes_AS_STRING(self);
+	Py_ssize_t len = PyBytes_GET_SIZE(self), i, j;
 
 	i = 0;
 	if (striptype != RIGHTSTRIP) {
@@ -1725,17 +1725,17 @@
 		j++;
 	}
 
-	if (i == 0 && j == len && PyString_CheckExact(self)) {
+	if (i == 0 && j == len && PyBytes_CheckExact(self)) {
 		Py_INCREF(self);
 		return (PyObject*)self;
 	}
 	else
-		return PyString_FromStringAndSize(s+i, j-i);
+		return PyBytes_FromStringAndSize(s+i, j-i);
 }
 
 
 Py_LOCAL_INLINE(PyObject *)
-do_argstrip(PyStringObject *self, int striptype, PyObject *args)
+do_argstrip(PyBytesObject *self, int striptype, PyObject *args)
 {
 	PyObject *sep = NULL;
 
@@ -1755,7 +1755,7 @@
 Strip leading and trailing bytes contained in the argument.\n\
 If the argument is omitted, strip trailing ASCII whitespace.");
 static PyObject *
-string_strip(PyStringObject *self, PyObject *args)
+string_strip(PyBytesObject *self, PyObject *args)
 {
 	if (PyTuple_GET_SIZE(args) == 0)
 		return do_strip(self, BOTHSTRIP); /* Common case */
@@ -1770,7 +1770,7 @@
 Strip leading bytes contained in the argument.\n\
 If the argument is omitted, strip leading ASCII whitespace.");
 static PyObject *
-string_lstrip(PyStringObject *self, PyObject *args)
+string_lstrip(PyBytesObject *self, PyObject *args)
 {
 	if (PyTuple_GET_SIZE(args) == 0)
 		return do_strip(self, LEFTSTRIP); /* Common case */
@@ -1785,7 +1785,7 @@
 Strip trailing bytes contained in the argument.\n\
 If the argument is omitted, strip trailing ASCII whitespace.");
 static PyObject *
-string_rstrip(PyStringObject *self, PyObject *args)
+string_rstrip(PyBytesObject *self, PyObject *args)
 {
 	if (PyTuple_GET_SIZE(args) == 0)
 		return do_strip(self, RIGHTSTRIP); /* Common case */
@@ -1802,10 +1802,10 @@
 as in slice notation.");
 
 static PyObject *
-string_count(PyStringObject *self, PyObject *args)
+string_count(PyBytesObject *self, PyObject *args)
 {
 	PyObject *sub_obj;
-	const char *str = PyString_AS_STRING(self), *sub;
+	const char *str = PyBytes_AS_STRING(self), *sub;
 	Py_ssize_t sub_len;
 	Py_ssize_t start = 0, end = PY_SSIZE_T_MAX;
 
@@ -1813,14 +1813,14 @@
 		_PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end))
 		return NULL;
 
-	if (PyString_Check(sub_obj)) {
-		sub = PyString_AS_STRING(sub_obj);
-		sub_len = PyString_GET_SIZE(sub_obj);
+	if (PyBytes_Check(sub_obj)) {
+		sub = PyBytes_AS_STRING(sub_obj);
+		sub_len = PyBytes_GET_SIZE(sub_obj);
 	}
 	else if (PyObject_AsCharBuffer(sub_obj, &sub, &sub_len))
 		return NULL;
 
-	string_adjust_indices(&start, &end, PyString_GET_SIZE(self));
+	string_adjust_indices(&start, &end, PyBytes_GET_SIZE(self));
 
 	return PyLong_FromSsize_t(
 		stringlib_count(str + start, end - start, sub, sub_len)
@@ -1837,7 +1837,7 @@
 table, which must be a bytes object of length 256.");
 
 static PyObject *
-string_translate(PyStringObject *self, PyObject *args)
+string_translate(PyBytesObject *self, PyObject *args)
 {
 	register char *input, *output;
 	const char *table;
@@ -1853,9 +1853,9 @@
 			      &tableobj, &delobj))
 		return NULL;
 
-	if (PyString_Check(tableobj)) {
-		table = PyString_AS_STRING(tableobj);
-		tablen = PyString_GET_SIZE(tableobj);
+	if (PyBytes_Check(tableobj)) {
+		table = PyBytes_AS_STRING(tableobj);
+		tablen = PyBytes_GET_SIZE(tableobj);
 	}
 	else if (tableobj == Py_None) {
 		table = NULL;
@@ -1871,9 +1871,9 @@
 	}
 
 	if (delobj != NULL) {
-		if (PyString_Check(delobj)) {
-			del_table = PyString_AS_STRING(delobj);
-			dellen = PyString_GET_SIZE(delobj);
+		if (PyBytes_Check(delobj)) {
+			del_table = PyBytes_AS_STRING(delobj);
+			dellen = PyBytes_GET_SIZE(delobj);
 		}
 		else if (PyUnicode_Check(delobj)) {
 			PyErr_SetString(PyExc_TypeError,
@@ -1888,12 +1888,12 @@
 		dellen = 0;
 	}
 
-	inlen = PyString_GET_SIZE(input_obj);
-	result = PyString_FromStringAndSize((char *)NULL, inlen);
+	inlen = PyBytes_GET_SIZE(input_obj);
+	result = PyBytes_FromStringAndSize((char *)NULL, inlen);
 	if (result == NULL)
 		return NULL;
-	output_start = output = PyString_AsString(result);
-	input = PyString_AS_STRING(input_obj);
+	output_start = output = PyBytes_AsString(result);
+	input = PyBytes_AS_STRING(input_obj);
 
 	if (dellen == 0 && table != NULL) {
 		/* If no deletions are required, use faster code */
@@ -1902,7 +1902,7 @@
 			if (Py_CHARMASK((*output++ = table[c])) != c)
 				changed = 1;
 		}
-		if (changed || !PyString_CheckExact(input_obj))
+		if (changed || !PyBytes_CheckExact(input_obj))
 			return result;
 		Py_DECREF(result);
 		Py_INCREF(input_obj);
@@ -1927,14 +1927,14 @@
 				continue;
 		changed = 1;
 	}
-	if (!changed && PyString_CheckExact(input_obj)) {
+	if (!changed && PyBytes_CheckExact(input_obj)) {
 		Py_DECREF(result);
 		Py_INCREF(input_obj);
 		return input_obj;
 	}
 	/* Fix the size of the resulting string */
 	if (inlen > 0)
-		_PyString_Resize(&result, output - output_start);
+		_PyBytes_Resize(&result, output - output_start);
 	return result;
 }
 
@@ -1949,16 +1949,16 @@
 
 /* String ops must return a string.  */
 /* If the object is subclass of string, create a copy */
-Py_LOCAL(PyStringObject *)
-return_self(PyStringObject *self)
+Py_LOCAL(PyBytesObject *)
+return_self(PyBytesObject *self)
 {
-	if (PyString_CheckExact(self)) {
+	if (PyBytes_CheckExact(self)) {
 		Py_INCREF(self);
 		return self;
 	}
-	return (PyStringObject *)PyString_FromStringAndSize(
-		PyString_AS_STRING(self),
-		PyString_GET_SIZE(self));
+	return (PyBytesObject *)PyBytes_FromStringAndSize(
+		PyBytes_AS_STRING(self),
+		PyBytes_GET_SIZE(self));
 }
 
 Py_LOCAL_INLINE(Py_ssize_t)
@@ -2069,17 +2069,17 @@
 /* Algorithms for different cases of string replacement */
 
 /* len(self)>=1, from="", len(to)>=1, maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_interleave(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_interleave(PyBytesObject *self,
 		   const char *to_s, Py_ssize_t to_len,
 		   Py_ssize_t maxcount)
 {
 	char *self_s, *result_s;
 	Py_ssize_t self_len, result_len;
 	Py_ssize_t count, i, product;
-	PyStringObject *result;
+	PyBytesObject *result;
 
-	self_len = PyString_GET_SIZE(self);
+	self_len = PyBytes_GET_SIZE(self);
 
 	/* 1 at the end plus 1 after every character */
 	count = self_len+1;
@@ -2101,12 +2101,12 @@
 		return NULL;
 	}
 
-	if (! (result = (PyStringObject *)
-	                 PyString_FromStringAndSize(NULL, result_len)) )
+	if (! (result = (PyBytesObject *)
+	                 PyBytes_FromStringAndSize(NULL, result_len)) )
 		return NULL;
 
-	self_s = PyString_AS_STRING(self);
-	result_s = PyString_AS_STRING(result);
+	self_s = PyBytes_AS_STRING(self);
+	result_s = PyBytes_AS_STRING(result);
 
 	/* TODO: special case single character, which doesn't need memcpy */
 
@@ -2129,18 +2129,18 @@
 
 /* Special case for deleting a single character */
 /* len(self)>=1, len(from)==1, to="", maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_delete_single_character(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_delete_single_character(PyBytesObject *self,
 				char from_c, Py_ssize_t maxcount)
 {
 	char *self_s, *result_s;
 	char *start, *next, *end;
 	Py_ssize_t self_len, result_len;
 	Py_ssize_t count;
-	PyStringObject *result;
+	PyBytesObject *result;
 
-	self_len = PyString_GET_SIZE(self);
-	self_s = PyString_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
 
 	count = countchar(self_s, self_len, from_c, maxcount);
 	if (count == 0) {
@@ -2150,10 +2150,10 @@
 	result_len = self_len - count;  /* from_len == 1 */
 	assert(result_len>=0);
 
-	if ( (result = (PyStringObject *)
-	                PyString_FromStringAndSize(NULL, result_len)) == NULL)
+	if ( (result = (PyBytesObject *)
+	                PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
 		return NULL;
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 
 	start = self_s;
 	end = self_s + self_len;
@@ -2172,18 +2172,18 @@
 
 /* len(self)>=1, len(from)>=2, to="", maxcount>=1 */
 
-Py_LOCAL(PyStringObject *)
-replace_delete_substring(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_delete_substring(PyBytesObject *self,
 			 const char *from_s, Py_ssize_t from_len,
 			 Py_ssize_t maxcount) {
 	char *self_s, *result_s;
 	char *start, *next, *end;
 	Py_ssize_t self_len, result_len;
 	Py_ssize_t count, offset;
-	PyStringObject *result;
+	PyBytesObject *result;
 
-	self_len = PyString_GET_SIZE(self);
-	self_s = PyString_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
 
 	count = countstring(self_s, self_len,
 			    from_s, from_len,
@@ -2198,11 +2198,11 @@
 	result_len = self_len - (count * from_len);
 	assert (result_len>=0);
 
-	if ( (result = (PyStringObject *)
-	      PyString_FromStringAndSize(NULL, result_len)) == NULL )
+	if ( (result = (PyBytesObject *)
+	      PyBytes_FromStringAndSize(NULL, result_len)) == NULL )
 		return NULL;
 
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 
 	start = self_s;
 	end = self_s + self_len;
@@ -2224,18 +2224,18 @@
 }
 
 /* len(self)>=1, len(from)==len(to)==1, maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_single_character_in_place(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_single_character_in_place(PyBytesObject *self,
 				  char from_c, char to_c,
 				  Py_ssize_t maxcount)
 {
 	char *self_s, *result_s, *start, *end, *next;
 	Py_ssize_t self_len;
-	PyStringObject *result;
+	PyBytesObject *result;
 
 	/* The result string will be the same size */
-	self_s = PyString_AS_STRING(self);
-	self_len = PyString_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
 
 	next = findchar(self_s, self_len, from_c);
 
@@ -2245,10 +2245,10 @@
 	}
 
 	/* Need to make a new string */
-	result = (PyStringObject *) PyString_FromStringAndSize(NULL, self_len);
+	result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
 	if (result == NULL)
 		return NULL;
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 	Py_MEMCPY(result_s, self_s, self_len);
 
 	/* change everything in-place, starting with this one */
@@ -2269,8 +2269,8 @@
 }
 
 /* len(self)>=1, len(from)==len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_substring_in_place(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_substring_in_place(PyBytesObject *self,
 			   const char *from_s, Py_ssize_t from_len,
 			   const char *to_s, Py_ssize_t to_len,
 			   Py_ssize_t maxcount)
@@ -2278,12 +2278,12 @@
 	char *result_s, *start, *end;
 	char *self_s;
 	Py_ssize_t self_len, offset;
-	PyStringObject *result;
+	PyBytesObject *result;
 
 	/* The result string will be the same size */
 
-	self_s = PyString_AS_STRING(self);
-	self_len = PyString_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
 
 	offset = findstring(self_s, self_len,
 			    from_s, from_len,
@@ -2294,10 +2294,10 @@
 	}
 
 	/* Need to make a new string */
-	result = (PyStringObject *) PyString_FromStringAndSize(NULL, self_len);
+	result = (PyBytesObject *) PyBytes_FromStringAndSize(NULL, self_len);
 	if (result == NULL)
 		return NULL;
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 	Py_MEMCPY(result_s, self_s, self_len);
 
 	/* change everything in-place, starting with this one */
@@ -2320,8 +2320,8 @@
 }
 
 /* len(self)>=1, len(from)==1, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_single_character(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_single_character(PyBytesObject *self,
 			 char from_c,
 			 const char *to_s, Py_ssize_t to_len,
 			 Py_ssize_t maxcount)
@@ -2330,10 +2330,10 @@
 	char *start, *next, *end;
 	Py_ssize_t self_len, result_len;
 	Py_ssize_t count, product;
-	PyStringObject *result;
+	PyBytesObject *result;
 
-	self_s = PyString_AS_STRING(self);
-	self_len = PyString_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
 
 	count = countchar(self_s, self_len, from_c, maxcount);
 	if (count == 0) {
@@ -2356,10 +2356,10 @@
 		return NULL;
 	}
 
-	if ( (result = (PyStringObject *)
-	      PyString_FromStringAndSize(NULL, result_len)) == NULL)
+	if ( (result = (PyBytesObject *)
+	      PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
 		return NULL;
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 
 	start = self_s;
 	end = self_s + self_len;
@@ -2389,8 +2389,8 @@
 }
 
 /* len(self)>=1, len(from)>=2, len(to)>=2, maxcount>=1 */
-Py_LOCAL(PyStringObject *)
-replace_substring(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace_substring(PyBytesObject *self,
 		  const char *from_s, Py_ssize_t from_len,
 		  const char *to_s, Py_ssize_t to_len,
 		  Py_ssize_t maxcount) {
@@ -2398,10 +2398,10 @@
 	char *start, *next, *end;
 	Py_ssize_t self_len, result_len;
 	Py_ssize_t count, offset, product;
-	PyStringObject *result;
+	PyBytesObject *result;
 
-	self_s = PyString_AS_STRING(self);
-	self_len = PyString_GET_SIZE(self);
+	self_s = PyBytes_AS_STRING(self);
+	self_len = PyBytes_GET_SIZE(self);
 
 	count = countstring(self_s, self_len,
 			    from_s, from_len,
@@ -2426,10 +2426,10 @@
 		return NULL;
 	}
 
-	if ( (result = (PyStringObject *)
-	      PyString_FromStringAndSize(NULL, result_len)) == NULL)
+	if ( (result = (PyBytesObject *)
+	      PyBytes_FromStringAndSize(NULL, result_len)) == NULL)
 		return NULL;
-	result_s = PyString_AS_STRING(result);
+	result_s = PyBytes_AS_STRING(result);
 
 	start = self_s;
 	end = self_s + self_len;
@@ -2461,15 +2461,15 @@
 }
 
 
-Py_LOCAL(PyStringObject *)
-replace(PyStringObject *self,
+Py_LOCAL(PyBytesObject *)
+replace(PyBytesObject *self,
 	const char *from_s, Py_ssize_t from_len,
 	const char *to_s, Py_ssize_t to_len,
 	Py_ssize_t maxcount)
 {
 	if (maxcount < 0) {
 		maxcount = PY_SSIZE_T_MAX;
-	} else if (maxcount == 0 || PyString_GET_SIZE(self) == 0) {
+	} else if (maxcount == 0 || PyBytes_GET_SIZE(self) == 0) {
 		/* nothing to do; return the original string */
 		return return_self(self);
 	}
@@ -2492,7 +2492,7 @@
 	/* Except for "".replace("", "A") == "A" there is no way beyond this */
 	/* point for an empty self string to generate a non-empty string */
 	/* Special case so the remaining code always gets a non-empty string */
-	if (PyString_GET_SIZE(self) == 0) {
+	if (PyBytes_GET_SIZE(self) == 0) {
 		return return_self(self);
 	}
 
@@ -2542,7 +2542,7 @@
 given, only the first count occurrences are replaced.");
 
 static PyObject *
-string_replace(PyStringObject *self, PyObject *args)
+string_replace(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t count = -1;
 	PyObject *from, *to;
@@ -2552,21 +2552,21 @@
 	if (!PyArg_ParseTuple(args, "OO|n:replace", &from, &to, &count))
 		return NULL;
 
-	if (PyString_Check(from)) {
-		from_s = PyString_AS_STRING(from);
-		from_len = PyString_GET_SIZE(from);
+	if (PyBytes_Check(from)) {
+		from_s = PyBytes_AS_STRING(from);
+		from_len = PyBytes_GET_SIZE(from);
 	}
 	else if (PyObject_AsCharBuffer(from, &from_s, &from_len))
 		return NULL;
 
-	if (PyString_Check(to)) {
-		to_s = PyString_AS_STRING(to);
-		to_len = PyString_GET_SIZE(to);
+	if (PyBytes_Check(to)) {
+		to_s = PyBytes_AS_STRING(to);
+		to_len = PyBytes_GET_SIZE(to);
 	}
 	else if (PyObject_AsCharBuffer(to, &to_s, &to_len))
 		return NULL;
 
-	return (PyObject *)replace((PyStringObject *) self,
+	return (PyObject *)replace((PyBytesObject *) self,
 				   from_s, from_len,
 				   to_s, to_len, count);
 }
@@ -2578,21 +2578,21 @@
  * -1 on error, 0 if not found and 1 if found.
  */
 Py_LOCAL(int)
-_string_tailmatch(PyStringObject *self, PyObject *substr, Py_ssize_t start,
+_string_tailmatch(PyBytesObject *self, PyObject *substr, Py_ssize_t start,
 		  Py_ssize_t end, int direction)
 {
-	Py_ssize_t len = PyString_GET_SIZE(self);
+	Py_ssize_t len = PyBytes_GET_SIZE(self);
 	Py_ssize_t slen;
 	const char* sub;
 	const char* str;
 
-	if (PyString_Check(substr)) {
-		sub = PyString_AS_STRING(substr);
-		slen = PyString_GET_SIZE(substr);
+	if (PyBytes_Check(substr)) {
+		sub = PyBytes_AS_STRING(substr);
+		slen = PyBytes_GET_SIZE(substr);
 	}
 	else if (PyObject_AsCharBuffer(substr, &sub, &slen))
 		return -1;
-	str = PyString_AS_STRING(self);
+	str = PyBytes_AS_STRING(self);
 
 	string_adjust_indices(&start, &end, len);
 
@@ -2623,7 +2623,7 @@
 prefix can also be a tuple of strings to try.");
 
 static PyObject *
-string_startswith(PyStringObject *self, PyObject *args)
+string_startswith(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t start = 0;
 	Py_ssize_t end = PY_SSIZE_T_MAX;
@@ -2664,7 +2664,7 @@
 suffix can also be a tuple of strings to try.");
 
 static PyObject *
-string_endswith(PyStringObject *self, PyObject *args)
+string_endswith(PyBytesObject *self, PyObject *args)
 {
 	Py_ssize_t start = 0;
 	Py_ssize_t end = PY_SSIZE_T_MAX;
@@ -2758,10 +2758,10 @@
 	hexlen = PyUnicode_GET_SIZE(hexobj);
 	hex = PyUnicode_AS_UNICODE(hexobj);
 	byteslen = hexlen/2; /* This overestimates if there are spaces */
-	newstring = PyString_FromStringAndSize(NULL, byteslen);
+	newstring = PyBytes_FromStringAndSize(NULL, byteslen);
 	if (!newstring)
 		return NULL;
-	buf = PyString_AS_STRING(newstring);
+	buf = PyBytes_AS_STRING(newstring);
 	for (i = j = 0; i < hexlen; i += 2) {
 		/* skip over spaces in the input */
 		while (hex[i] == ' ')
@@ -2778,7 +2778,7 @@
 		}
 		buf[j++] = (top << 4) + bot;
 	}
-	if (j != byteslen && _PyString_Resize(&newstring, j) < 0)
+	if (j != byteslen && _PyBytes_Resize(&newstring, j) < 0)
 		goto error;
 	return newstring;
 
@@ -2789,7 +2789,7 @@
 
 
 static PyObject *
-string_getnewargs(PyStringObject *v)
+string_getnewargs(PyBytesObject *v)
 {
 	return Py_BuildValue("(s#)", v->ob_sval, Py_SIZE(v));
 }
@@ -2867,7 +2867,7 @@
 	Py_ssize_t i, size;
 	static char *kwlist[] = {"source", "encoding", "errors", 0};
 
-	if (type != &PyString_Type)
+	if (type != &PyBytes_Type)
 		return str_subtype_new(type, args, kwds);
 	if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:bytes", kwlist, &x,
 					 &encoding, &errors))
@@ -2879,7 +2879,7 @@
 					"argument");
 			return NULL;
 		}
-		return PyString_FromString("");
+		return PyBytes_FromString("");
 	}
 
 	if (PyUnicode_Check(x)) {
@@ -2892,7 +2892,7 @@
 		new = PyCodec_Encode(x, encoding, errors);
 		if (new == NULL)
 			return NULL;
-		assert(PyString_Check(new));
+		assert(PyBytes_Check(new));
 		return new;
 	}
 
@@ -2913,12 +2913,12 @@
 			PyErr_SetString(PyExc_ValueError, "negative count");
 			return NULL;
 		}
-		new = PyString_FromStringAndSize(NULL, size);
+		new = PyBytes_FromStringAndSize(NULL, size);
 		if (new == NULL) {
 			return NULL;
 		}
 		if (size > 0) {
-			memset(((PyStringObject*)new)->ob_sval, 0, size);
+			memset(((PyBytesObject*)new)->ob_sval, 0, size);
 		}
 		return new;
 	}
@@ -2928,11 +2928,11 @@
 		Py_buffer view;
 		if (PyObject_GetBuffer(x, &view, PyBUF_FULL_RO) < 0)
 			return NULL;
-		new = PyString_FromStringAndSize(NULL, view.len);
+		new = PyBytes_FromStringAndSize(NULL, view.len);
 		if (!new)
 			goto fail;
 		// XXX(brett.cannon): Better way to get to internal buffer?
-		if (PyBuffer_ToContiguous(((PyStringObject *)new)->ob_sval,
+		if (PyBuffer_ToContiguous(((PyBytesObject *)new)->ob_sval,
 					  &view, view.len, 'C') < 0)
 			goto fail;
 		PyObject_ReleaseBuffer(x, &view);
@@ -2948,7 +2948,7 @@
 	/* XXX(guido): perhaps use Pysequence_Fast() -- I can't imagine the
 	   input being a truly long iterator. */
 	size = 64;
-	new = PyString_FromStringAndSize(NULL, size);
+	new = PyBytes_FromStringAndSize(NULL, size);
 	if (new == NULL)
 		return NULL;
 
@@ -2988,12 +2988,12 @@
 		/* Append the byte */
 		if (i >= size) {
 			size *= 2;
-			if (_PyString_Resize(&new, size) < 0)
+			if (_PyBytes_Resize(&new, size) < 0)
 				goto error;
 		}
-		((PyStringObject *)new)->ob_sval[i] = value;
+		((PyBytesObject *)new)->ob_sval[i] = value;
 	}
-	_PyString_Resize(&new, i);
+	_PyBytes_Resize(&new, i);
 
 	/* Clean up and return success */
 	Py_DECREF(it);
@@ -3012,18 +3012,18 @@
 	PyObject *tmp, *pnew;
 	Py_ssize_t n;
 
-	assert(PyType_IsSubtype(type, &PyString_Type));
-	tmp = string_new(&PyString_Type, args, kwds);
+	assert(PyType_IsSubtype(type, &PyBytes_Type));
+	tmp = string_new(&PyBytes_Type, args, kwds);
 	if (tmp == NULL)
 		return NULL;
-	assert(PyString_CheckExact(tmp));
-	n = PyString_GET_SIZE(tmp);
+	assert(PyBytes_CheckExact(tmp));
+	n = PyBytes_GET_SIZE(tmp);
 	pnew = type->tp_alloc(type, n);
 	if (pnew != NULL) {
-		Py_MEMCPY(PyString_AS_STRING(pnew),
-			  PyString_AS_STRING(tmp), n+1);
-		((PyStringObject *)pnew)->ob_shash =
-			((PyStringObject *)tmp)->ob_shash;
+		Py_MEMCPY(PyBytes_AS_STRING(pnew),
+			  PyBytes_AS_STRING(tmp), n+1);
+		((PyBytesObject *)pnew)->ob_shash =
+			((PyBytesObject *)tmp)->ob_shash;
 	}
 	Py_DECREF(tmp);
 	return pnew;
@@ -3043,10 +3043,10 @@
 
 static PyObject *str_iter(PyObject *seq);
 
-PyTypeObject PyString_Type = {
+PyTypeObject PyBytes_Type = {
 	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"bytes",
-	sizeof(PyStringObject),
+	sizeof(PyBytesObject),
 	sizeof(char),
  	string_dealloc, 			/* tp_dealloc */
 	0,			 		/* tp_print */
@@ -3064,7 +3064,7 @@
 	0,					/* tp_setattro */
 	&string_as_buffer,			/* tp_as_buffer */
 	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
-		Py_TPFLAGS_STRING_SUBCLASS,	/* tp_flags */
+		Py_TPFLAGS_BYTES_SUBCLASS,	/* tp_flags */
 	string_doc,				/* tp_doc */
 	0,					/* tp_traverse */
 	0,					/* tp_clear */
@@ -3087,7 +3087,7 @@
 };
 
 void
-PyString_Concat(register PyObject **pv, register PyObject *w)
+PyBytes_Concat(register PyObject **pv, register PyObject *w)
 {
 	register PyObject *v;
 	assert(pv != NULL);
@@ -3104,9 +3104,9 @@
 }
 
 void
-PyString_ConcatAndDel(register PyObject **pv, register PyObject *w)
+PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
 {
-	PyString_Concat(pv, w);
+	PyBytes_Concat(pv, w);
 	Py_XDECREF(w);
 }
 
@@ -3126,12 +3126,12 @@
 */
 
 int
-_PyString_Resize(PyObject **pv, Py_ssize_t newsize)
+_PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
 {
 	register PyObject *v;
-	register PyStringObject *sv;
+	register PyBytesObject *sv;
 	v = *pv;
-	if (!PyString_Check(v) || Py_REFCNT(v) != 1 || newsize < 0) {
+	if (!PyBytes_Check(v) || Py_REFCNT(v) != 1 || newsize < 0) {
 		*pv = 0;
 		Py_DECREF(v);
 		PyErr_BadInternalCall();
@@ -3141,21 +3141,21 @@
 	_Py_DEC_REFTOTAL;
 	_Py_ForgetReference(v);
 	*pv = (PyObject *)
-		PyObject_REALLOC((char *)v, sizeof(PyStringObject) + newsize);
+		PyObject_REALLOC((char *)v, sizeof(PyBytesObject) + newsize);
 	if (*pv == NULL) {
 		PyObject_Del(v);
 		PyErr_NoMemory();
 		return -1;
 	}
 	_Py_NewReference(*pv);
-	sv = (PyStringObject *) *pv;
+	sv = (PyBytesObject *) *pv;
 	Py_SIZE(sv) = newsize;
 	sv->ob_sval[newsize] = '\0';
 	sv->ob_shash = -1;	/* invalidate cached hash value */
 	return 0;
 }
 
-/* _PyString_FormatLong emulates the format codes d, u, o, x and X, and
+/* _PyBytes_FormatLong emulates the format codes d, u, o, x and X, and
  * the F_ALT flag, for Python's long (unbounded) ints.  It's not used for
  * Python's regular ints.
  * Return value:  a new PyString*, or NULL if error.
@@ -3177,7 +3177,7 @@
  * produce a '-' sign, but can for Python's unbounded ints.
  */
 PyObject*
-_PyString_FormatLong(PyObject *val, int flags, int prec, int type,
+_PyBytes_FormatLong(PyObject *val, int flags, int prec, int type,
 		     char **pbuf, int *plen)
 {
 	PyObject *result = NULL;
@@ -3234,7 +3234,7 @@
 	llen = PyUnicode_GetSize(result);
 	if (llen > INT_MAX) {
 		PyErr_SetString(PyExc_ValueError,
-				"string too large in _PyString_FormatLong");
+				"string too large in _PyBytes_FormatLong");
 		return NULL;
 	}
 	len = (int)llen;
@@ -3264,14 +3264,14 @@
 
 	/* Fill with leading zeroes to meet minimum width. */
 	if (prec > numdigits) {
-		PyObject *r1 = PyString_FromStringAndSize(NULL,
+		PyObject *r1 = PyBytes_FromStringAndSize(NULL,
 					numnondigits + prec);
 		char *b1;
 		if (!r1) {
 			Py_DECREF(result);
 			return NULL;
 		}
-		b1 = PyString_AS_STRING(r1);
+		b1 = PyBytes_AS_STRING(r1);
 		for (i = 0; i < numnondigits; ++i)
 			*b1++ = *buf++;
 		for (i = 0; i < prec - numdigits; i++)
@@ -3281,7 +3281,7 @@
 		*b1 = '\0';
 		Py_DECREF(result);
 		result = r1;
-		buf = PyString_AS_STRING(result);
+		buf = PyBytes_AS_STRING(result);
 		len = numnondigits + prec;
 	}
 
@@ -3299,7 +3299,7 @@
 }
 
 void
-PyString_Fini(void)
+PyBytes_Fini(void)
 {
 	int i;
 	for (i = 0; i < UCHAR_MAX + 1; i++) {
@@ -3315,7 +3315,7 @@
 typedef struct {
 	PyObject_HEAD
 	Py_ssize_t it_index;
-	PyStringObject *it_seq; /* Set to NULL when iterator is exhausted */
+	PyBytesObject *it_seq; /* Set to NULL when iterator is exhausted */
 } striterobject;
 
 static void
@@ -3336,16 +3336,16 @@
 static PyObject *
 striter_next(striterobject *it)
 {
-	PyStringObject *seq;
+	PyBytesObject *seq;
 	PyObject *item;
 
 	assert(it != NULL);
 	seq = it->it_seq;
 	if (seq == NULL)
 		return NULL;
-	assert(PyString_Check(seq));
+	assert(PyBytes_Check(seq));
 
-	if (it->it_index < PyString_GET_SIZE(seq)) {
+	if (it->it_index < PyBytes_GET_SIZE(seq)) {
 		item = PyLong_FromLong(
 			(unsigned char)seq->ob_sval[it->it_index]);
 		if (item != NULL)
@@ -3363,7 +3363,7 @@
 {
 	Py_ssize_t len = 0;
 	if (it->it_seq)
-		len = PyString_GET_SIZE(it->it_seq) - it->it_index;
+		len = PyBytes_GET_SIZE(it->it_seq) - it->it_index;
 	return PyLong_FromSsize_t(len);
 }
 
@@ -3376,7 +3376,7 @@
  	{NULL,		NULL}		/* sentinel */
 };
 
-PyTypeObject PyStringIter_Type = {
+PyTypeObject PyBytesIter_Type = {
 	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"bytes_iterator",			/* tp_name */
 	sizeof(striterobject),			/* tp_basicsize */
@@ -3414,16 +3414,16 @@
 {
 	striterobject *it;
 
-	if (!PyString_Check(seq)) {
+	if (!PyBytes_Check(seq)) {
 		PyErr_BadInternalCall();
 		return NULL;
 	}
-	it = PyObject_GC_New(striterobject, &PyStringIter_Type);
+	it = PyObject_GC_New(striterobject, &PyBytesIter_Type);
 	if (it == NULL)
 		return NULL;
 	it->it_index = 0;
 	Py_INCREF(seq);
-	it->it_seq = (PyStringObject *)seq;
+	it->it_seq = (PyBytesObject *)seq;
 	_PyObject_GC_TRACK(it);
 	return (PyObject *)it;
 }
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 88ce67f..73d501c 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -3462,8 +3462,8 @@
 		type->tp_flags |= Py_TPFLAGS_TYPE_SUBCLASS;
 	else if (PyType_IsSubtype(base, &PyLong_Type))
 		type->tp_flags |= Py_TPFLAGS_LONG_SUBCLASS;
-	else if (PyType_IsSubtype(base, &PyString_Type))
-		type->tp_flags |= Py_TPFLAGS_STRING_SUBCLASS;
+	else if (PyType_IsSubtype(base, &PyBytes_Type))
+		type->tp_flags |= Py_TPFLAGS_BYTES_SUBCLASS;
 	else if (PyType_IsSubtype(base, &PyUnicode_Type))
 		type->tp_flags |= Py_TPFLAGS_UNICODE_SUBCLASS;
 	else if (PyType_IsSubtype(base, &PyTuple_Type))
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 445d56a..1401188 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -1100,9 +1100,9 @@
 	}
 
     /* Coerce object */
-    if (PyString_Check(obj)) {
-	    s = PyString_AS_STRING(obj);
-	    len = PyString_GET_SIZE(obj);
+    if (PyBytes_Check(obj)) {
+	    s = PyBytes_AS_STRING(obj);
+	    len = PyBytes_GET_SIZE(obj);
 	    }
     else if (PyObject_AsCharBuffer(obj, &s, &len)) {
 	/* Overwrite the error message with something more useful in
@@ -1298,7 +1298,7 @@
     v = PyCodec_Encode(unicode, encoding, errors);
     if (v == NULL)
         goto onError;
-    assert(PyString_Check(v));
+    assert(PyBytes_Check(v));
     return v;
 
  onError:
@@ -1367,8 +1367,8 @@
     if (bytes == NULL)
         return NULL;
     if (psize != NULL)
-        *psize = PyString_GET_SIZE(bytes);
-    return PyString_AS_STRING(bytes);
+        *psize = PyBytes_GET_SIZE(bytes);
+    return PyBytes_AS_STRING(bytes);
 }
 
 char*
@@ -1480,11 +1480,11 @@
     inputobj = PyUnicodeDecodeError_GetObject(*exceptionObject);
     if (!inputobj)
         goto onError;
-    if (!PyString_Check(inputobj)) {
+    if (!PyBytes_Check(inputobj)) {
 	PyErr_Format(PyExc_TypeError, "exception attribute object must be bytes");
     }
-    *input = PyString_AS_STRING(inputobj);
-    insize = PyString_GET_SIZE(inputobj);
+    *input = PyBytes_AS_STRING(inputobj);
+    insize = PyBytes_GET_SIZE(inputobj);
     *inend = *input + insize;
     /* we can DECREF safely, as the exception has another reference,
        so the object won't go away. */
@@ -1762,7 +1762,7 @@
     char * start;
 
     if (size == 0)
-       return PyString_FromStringAndSize(NULL, 0);
+       return PyBytes_FromStringAndSize(NULL, 0);
 
     v = PyByteArray_FromStringAndSize(NULL, cbAllocated);
     if (v == NULL)
@@ -1834,7 +1834,7 @@
         *out++ = '-';
     }
 
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(v), out - start);
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(v), out - start);
     Py_DECREF(v);
     return result;
 }
@@ -2100,10 +2100,10 @@
         nallocated = size * 4;
         if (nallocated / 4 != size)  /* overflow! */
             return PyErr_NoMemory();
-        result = PyString_FromStringAndSize(NULL, nallocated);
+        result = PyBytes_FromStringAndSize(NULL, nallocated);
         if (result == NULL)
             return NULL;
-        p = PyString_AS_STRING(result);
+        p = PyBytes_AS_STRING(result);
     }
 
     for (i = 0; i < size;) {
@@ -2151,13 +2151,13 @@
         /* This was stack allocated. */
         nneeded = p - stackbuf;
         assert(nneeded <= nallocated);
-        result = PyString_FromStringAndSize(stackbuf, nneeded);
+        result = PyBytes_FromStringAndSize(stackbuf, nneeded);
     }
     else {
         /* Cut back to size actually needed. */
-        nneeded = p - PyString_AS_STRING(result);
+        nneeded = p - PyBytes_AS_STRING(result);
         assert(nneeded <= nallocated);
-        _PyString_Resize(&result, nneeded);
+        _PyBytes_Resize(&result, nneeded);
     }
     return result;
 
@@ -2427,7 +2427,7 @@
     }
 
   done:
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(v), Py_SIZE(v));
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(v), Py_SIZE(v));
     Py_DECREF(v);
     return result;
 #undef STORECHAR
@@ -2691,7 +2691,7 @@
     }
 
   done:
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(v), Py_SIZE(v));
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(v), Py_SIZE(v));
     Py_DECREF(v);
     return result;
 #undef STORECHAR
@@ -3106,7 +3106,7 @@
             *p++ = (char) ch;
     }
 
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(repr),
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(repr),
                                         p - PyByteArray_AS_STRING(repr));
     Py_DECREF(repr);
     return result;
@@ -3124,7 +3124,7 @@
 
     if (!s)
         return NULL;
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(s),
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(s),
                                         PyByteArray_GET_SIZE(s));
     Py_DECREF(s);
     return result;
@@ -3327,7 +3327,7 @@
     size = p - q;
 
   done:
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(repr), size);
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(repr), size);
     Py_DECREF(repr);
     return result;
 }
@@ -3344,7 +3344,7 @@
 
     if (!s)
         return NULL;
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(s),
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(s),
                                         PyByteArray_GET_SIZE(s));
     Py_DECREF(s);
     return result;
@@ -3577,7 +3577,7 @@
     /* allocate enough for a simple encoding without
        replacements, if we need more, we'll resize */
     if (size == 0)
-        return PyString_FromStringAndSize(NULL, 0);
+        return PyBytes_FromStringAndSize(NULL, 0);
     res = PyByteArray_FromStringAndSize(NULL, size);
     if (res == NULL)
         return NULL;
@@ -3708,7 +3708,7 @@
 	    }
 	}
     }
-    result = PyString_FromStringAndSize(PyByteArray_AS_STRING(res),
+    result = PyBytes_FromStringAndSize(PyByteArray_AS_STRING(res),
                                         str - PyByteArray_AS_STRING(res));
   onError:
     Py_DECREF(res);
@@ -3960,20 +3960,20 @@
 
     if (*repr == NULL) {
 	/* Create string object */
-	*repr = PyString_FromStringAndSize(NULL, mbcssize);
+	*repr = PyBytes_FromStringAndSize(NULL, mbcssize);
 	if (*repr == NULL)
 	    return -1;
     }
     else {
 	/* Extend string object */
-	n = PyString_Size(*repr);
-	if (_PyString_Resize(repr, n + mbcssize) < 0)
+	n = PyBytes_Size(*repr);
+	if (_PyBytes_Resize(repr, n + mbcssize) < 0)
 	    return -1;
     }
 
     /* Do the conversion */
     if (size > 0) {
-	char *s = PyString_AS_STRING(*repr) + n;
+	char *s = PyBytes_AS_STRING(*repr) + n;
 	if (0 == WideCharToMultiByte(CP_ACP, 0, p, size, s, mbcssize, NULL, NULL)) {
 	    PyErr_SetFromWindowsErrWithFilename(0, NULL);
 	    return -1;
@@ -4440,7 +4440,7 @@
 	}
 	return x;
     }
-    else if (PyString_Check(x))
+    else if (PyBytes_Check(x))
 	return x;
     else {
 	/* wrong return value */
@@ -4455,11 +4455,11 @@
 static int
 charmapencode_resize(PyObject **outobj, Py_ssize_t *outpos, Py_ssize_t requiredsize)
 {
-	Py_ssize_t outsize = PyString_GET_SIZE(*outobj);
+	Py_ssize_t outsize = PyBytes_GET_SIZE(*outobj);
 	/* exponentially overallocate to minimize reallocations */
 	if (requiredsize < 2*outsize)
 	    requiredsize = 2*outsize;
-	if (_PyString_Resize(outobj, requiredsize))
+	if (_PyBytes_Resize(outobj, requiredsize))
 	    return -1;
 	return 0;
 }
@@ -4479,7 +4479,7 @@
 {
     PyObject *rep;
     char *outstart;
-    Py_ssize_t outsize = PyString_GET_SIZE(*outobj);
+    Py_ssize_t outsize = PyBytes_GET_SIZE(*outobj);
 
     if (Py_TYPE(mapping) == &EncodingMapType) {
         int res = encoding_map_lookup(c, mapping);
@@ -4489,7 +4489,7 @@
 	if (outsize<requiredsize)
 	    if (charmapencode_resize(outobj, outpos, requiredsize))
 		return enc_EXCEPTION;
-        outstart = PyString_AS_STRING(*outobj);
+        outstart = PyBytes_AS_STRING(*outobj);
 	outstart[(*outpos)++] = (char)res;
 	return enc_SUCCESS;
     }
@@ -4508,19 +4508,19 @@
 		    Py_DECREF(rep);
 		    return enc_EXCEPTION;
 		}
-            outstart = PyString_AS_STRING(*outobj);
+            outstart = PyBytes_AS_STRING(*outobj);
 	    outstart[(*outpos)++] = (char)PyLong_AS_LONG(rep);
 	}
 	else {
-	    const char *repchars = PyString_AS_STRING(rep);
-	    Py_ssize_t repsize = PyString_GET_SIZE(rep);
+	    const char *repchars = PyBytes_AS_STRING(rep);
+	    Py_ssize_t repsize = PyBytes_GET_SIZE(rep);
 	    Py_ssize_t requiredsize = *outpos+repsize;
 	    if (outsize<requiredsize)
 		if (charmapencode_resize(outobj, outpos, requiredsize)) {
 		    Py_DECREF(rep);
 		    return enc_EXCEPTION;
 		}
-            outstart = PyString_AS_STRING(*outobj);
+            outstart = PyBytes_AS_STRING(*outobj);
 	    memcpy(outstart + *outpos, repchars, repsize);
 	    *outpos += repsize;
 	}
@@ -4671,7 +4671,7 @@
 
     /* allocate enough for a simple encoding without
        replacements, if we need more, we'll resize */
-    res = PyString_FromStringAndSize(NULL, size);
+    res = PyBytes_FromStringAndSize(NULL, size);
     if (res == NULL)
         goto onError;
     if (size == 0)
@@ -4696,8 +4696,8 @@
     }
 
     /* Resize if we allocated to much */
-    if (respos<PyString_GET_SIZE(res))
-	_PyString_Resize(&res, respos);
+    if (respos<PyBytes_GET_SIZE(res))
+	_PyBytes_Resize(&res, respos);
 
     Py_XDECREF(exc);
     Py_XDECREF(errorHandler);
@@ -6622,7 +6622,7 @@
     v = PyUnicode_AsEncodedObject((PyObject *)self, encoding, errors);
     if (v == NULL)
         goto onError;
-    if (!PyString_Check(v)) {
+    if (!PyBytes_Check(v)) {
         PyErr_Format(PyExc_TypeError,
                      "encoder did not return a bytes object "
                      "(type=%.400s)",
@@ -8475,7 +8475,7 @@
 	PyObject *str; /* temporary string object. */
 	PyObject *result;
 
-	str = _PyString_FormatLong(val, flags, prec, type, &buf, &len);
+	str = _PyBytes_FormatLong(val, flags, prec, type, &buf, &len);
 	if (!str)
 		return NULL;
 	result = PyUnicode_FromStringAndSize(buf, len);