diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index ac572d2..24f7851 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -30,18 +30,18 @@
 static int
 my_getpagesize(void)
 {
-	SYSTEM_INFO si;
-	GetSystemInfo(&si);
-	return si.dwPageSize;
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    return si.dwPageSize;
 }
 
 static int
 my_getallocationgranularity (void)
 {
 
-	SYSTEM_INFO si;
-	GetSystemInfo(&si);
-	return si.dwAllocationGranularity;
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    return si.dwAllocationGranularity;
 }
 
 #endif
@@ -54,7 +54,7 @@
 static int
 my_getpagesize(void)
 {
-	return sysconf(_SC_PAGESIZE);
+    return sysconf(_SC_PAGESIZE);
 }
 
 #define my_getallocationgranularity my_getpagesize
@@ -79,30 +79,30 @@
 
 typedef enum
 {
-	ACCESS_DEFAULT,
-	ACCESS_READ,
-	ACCESS_WRITE,
-	ACCESS_COPY
+    ACCESS_DEFAULT,
+    ACCESS_READ,
+    ACCESS_WRITE,
+    ACCESS_COPY
 } access_mode;
 
 typedef struct {
-	PyObject_HEAD
-	char *	data;
-	size_t	size;
-	size_t	pos;    /* relative to offset */
-	size_t	offset; 
+    PyObject_HEAD
+    char *      data;
+    size_t      size;
+    size_t      pos;    /* relative to offset */
+    size_t      offset;
 
 #ifdef MS_WINDOWS
-	HANDLE	map_handle;
-	HANDLE	file_handle;
-	char *	tagname;
+    HANDLE      map_handle;
+    HANDLE      file_handle;
+    char *      tagname;
 #endif
 
 #ifdef UNIX
-        int fd;
+    int fd;
 #endif
 
-        access_mode access;
+    access_mode access;
 } mmap_object;
 
 
@@ -110,321 +110,321 @@
 mmap_object_dealloc(mmap_object *m_obj)
 {
 #ifdef MS_WINDOWS
-	if (m_obj->data != NULL)
-		UnmapViewOfFile (m_obj->data);
-	if (m_obj->map_handle != NULL)
-		CloseHandle (m_obj->map_handle);
-	if (m_obj->file_handle != INVALID_HANDLE_VALUE)
-		CloseHandle (m_obj->file_handle);
-	if (m_obj->tagname)
-		PyMem_Free(m_obj->tagname);
+    if (m_obj->data != NULL)
+        UnmapViewOfFile (m_obj->data);
+    if (m_obj->map_handle != NULL)
+        CloseHandle (m_obj->map_handle);
+    if (m_obj->file_handle != INVALID_HANDLE_VALUE)
+        CloseHandle (m_obj->file_handle);
+    if (m_obj->tagname)
+        PyMem_Free(m_obj->tagname);
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
-	if (m_obj->fd >= 0)
-		(void) close(m_obj->fd);
-	if (m_obj->data!=NULL) {
-		msync(m_obj->data, m_obj->size, MS_SYNC);
-		munmap(m_obj->data, m_obj->size);
-	}
+    if (m_obj->fd >= 0)
+        (void) close(m_obj->fd);
+    if (m_obj->data!=NULL) {
+        msync(m_obj->data, m_obj->size, MS_SYNC);
+        munmap(m_obj->data, m_obj->size);
+    }
 #endif /* UNIX */
 
-	Py_TYPE(m_obj)->tp_free((PyObject*)m_obj);
+    Py_TYPE(m_obj)->tp_free((PyObject*)m_obj);
 }
 
 static PyObject *
 mmap_close_method(mmap_object *self, PyObject *unused)
 {
 #ifdef MS_WINDOWS
-	/* For each resource we maintain, we need to check
-	   the value is valid, and if so, free the resource
-	   and set the member value to an invalid value so
-	   the dealloc does not attempt to resource clearing
-	   again.
-	   TODO - should we check for errors in the close operations???
-	*/
-	if (self->data != NULL) {
-		UnmapViewOfFile(self->data);
-		self->data = NULL;
-	}
-	if (self->map_handle != NULL) {
-		CloseHandle(self->map_handle);
-		self->map_handle = NULL;
-	}
-	if (self->file_handle != INVALID_HANDLE_VALUE) {
-		CloseHandle(self->file_handle);
-		self->file_handle = INVALID_HANDLE_VALUE;
-	}
+    /* For each resource we maintain, we need to check
+       the value is valid, and if so, free the resource
+       and set the member value to an invalid value so
+       the dealloc does not attempt to resource clearing
+       again.
+       TODO - should we check for errors in the close operations???
+    */
+    if (self->data != NULL) {
+        UnmapViewOfFile(self->data);
+        self->data = NULL;
+    }
+    if (self->map_handle != NULL) {
+        CloseHandle(self->map_handle);
+        self->map_handle = NULL;
+    }
+    if (self->file_handle != INVALID_HANDLE_VALUE) {
+        CloseHandle(self->file_handle);
+        self->file_handle = INVALID_HANDLE_VALUE;
+    }
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
-	if (0 <= self->fd)
-		(void) close(self->fd);
-	self->fd = -1;
-	if (self->data != NULL) {
-		munmap(self->data, self->size);
-		self->data = NULL;
-	}
+    if (0 <= self->fd)
+        (void) close(self->fd);
+    self->fd = -1;
+    if (self->data != NULL) {
+        munmap(self->data, self->size);
+        self->data = NULL;
+    }
 #endif
 
-	Py_INCREF(Py_None);
-	return Py_None;
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 #ifdef MS_WINDOWS
-#define CHECK_VALID(err)						\
-do {									\
-    if (self->map_handle == NULL) {					\
-	PyErr_SetString(PyExc_ValueError, "mmap closed or invalid");	\
-	return err;							\
-    }									\
+#define CHECK_VALID(err)                                                \
+do {                                                                    \
+    if (self->map_handle == NULL) {                                     \
+    PyErr_SetString(PyExc_ValueError, "mmap closed or invalid");        \
+    return err;                                                         \
+    }                                                                   \
 } while (0)
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
-#define CHECK_VALID(err)						\
-do {									\
-    if (self->data == NULL) {						\
-	PyErr_SetString(PyExc_ValueError, "mmap closed or invalid");	\
-	return err;							\
-	}								\
+#define CHECK_VALID(err)                                                \
+do {                                                                    \
+    if (self->data == NULL) {                                           \
+    PyErr_SetString(PyExc_ValueError, "mmap closed or invalid");        \
+    return err;                                                         \
+    }                                                                   \
 } while (0)
 #endif /* UNIX */
 
 static PyObject *
 mmap_read_byte_method(mmap_object *self,
-		      PyObject *unused)
+                      PyObject *unused)
 {
-	CHECK_VALID(NULL);
-	if (self->pos < self->size) {
-	        char value = self->data[self->pos];
-		self->pos += 1;
-		return Py_BuildValue("c", value);
-	} else {
-		PyErr_SetString(PyExc_ValueError, "read byte out of range");
-		return NULL;
-	}
+    CHECK_VALID(NULL);
+    if (self->pos < self->size) {
+        char value = self->data[self->pos];
+        self->pos += 1;
+        return Py_BuildValue("c", value);
+    } else {
+        PyErr_SetString(PyExc_ValueError, "read byte out of range");
+        return NULL;
+    }
 }
 
 static PyObject *
 mmap_read_line_method(mmap_object *self,
-		      PyObject *unused)
+                      PyObject *unused)
 {
-	char *start = self->data+self->pos;
-	char *eof = self->data+self->size;
-	char *eol;
-	PyObject *result;
+    char *start = self->data+self->pos;
+    char *eof = self->data+self->size;
+    char *eol;
+    PyObject *result;
 
-	CHECK_VALID(NULL);
+    CHECK_VALID(NULL);
 
-	eol = memchr(start, '\n', self->size - self->pos);
-	if (!eol)
-		eol = eof;
-	else
-		++eol;		/* we're interested in the position after the
-				   newline. */
-	result = PyString_FromStringAndSize(start, (eol - start));
-	self->pos += (eol - start);
-	return result;
+    eol = memchr(start, '\n', self->size - self->pos);
+    if (!eol)
+        eol = eof;
+    else
+        ++eol;                  /* we're interested in the position after the
+                           newline. */
+    result = PyString_FromStringAndSize(start, (eol - start));
+    self->pos += (eol - start);
+    return result;
 }
 
 static PyObject *
 mmap_read_method(mmap_object *self,
-		 PyObject *args)
+                 PyObject *args)
 {
-	Py_ssize_t num_bytes, n;
-	PyObject *result;
+    Py_ssize_t num_bytes, n;
+    PyObject *result;
 
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "n:read", &num_bytes))
-		return(NULL);
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "n:read", &num_bytes))
+        return(NULL);
 
-	/* silently 'adjust' out-of-range requests */
-	assert(self->size >= self->pos);
-	n = self->size - self->pos;
-	/* The difference can overflow, only if self->size is greater than
-	 * PY_SSIZE_T_MAX.  But then the operation cannot possibly succeed,
-	 * because the mapped area and the returned string each need more 
-	 * than half of the addressable memory.  So we clip the size, and let
-	 * the code below raise MemoryError.
-	 */
-	if (n < 0)
-		n = PY_SSIZE_T_MAX;
-	if (num_bytes < 0 || num_bytes > n) {
-		num_bytes = n;
-	}
-	result = Py_BuildValue("s#", self->data+self->pos, num_bytes);
-	self->pos += num_bytes;
-	return result;
+    /* silently 'adjust' out-of-range requests */
+    assert(self->size >= self->pos);
+    n = self->size - self->pos;
+    /* The difference can overflow, only if self->size is greater than
+     * PY_SSIZE_T_MAX.  But then the operation cannot possibly succeed,
+     * because the mapped area and the returned string each need more
+     * than half of the addressable memory.  So we clip the size, and let
+     * the code below raise MemoryError.
+     */
+    if (n < 0)
+        n = PY_SSIZE_T_MAX;
+    if (num_bytes < 0 || num_bytes > n) {
+        num_bytes = n;
+    }
+    result = Py_BuildValue("s#", self->data+self->pos, num_bytes);
+    self->pos += num_bytes;
+    return result;
 }
 
 static PyObject *
 mmap_gfind(mmap_object *self,
-	   PyObject *args,
-	   int reverse)
+           PyObject *args,
+           int reverse)
 {
-	Py_ssize_t start = self->pos;
-	Py_ssize_t end = self->size;
-	const char *needle;
-	Py_ssize_t len;
+    Py_ssize_t start = self->pos;
+    Py_ssize_t end = self->size;
+    const char *needle;
+    Py_ssize_t len;
 
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, reverse ? "s#|nn:rfind" : "s#|nn:find",
-			      &needle, &len, &start, &end)) {
-		return NULL;
-	} else {
-		const char *p, *start_p, *end_p;
-		int sign = reverse ? -1 : 1;
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, reverse ? "s#|nn:rfind" : "s#|nn:find",
+                          &needle, &len, &start, &end)) {
+        return NULL;
+    } else {
+        const char *p, *start_p, *end_p;
+        int sign = reverse ? -1 : 1;
 
-                if (start < 0)
-			start += self->size;
-                if (start < 0)
-			start = 0;
-                else if ((size_t)start > self->size)
-			start = self->size;
+        if (start < 0)
+            start += self->size;
+        if (start < 0)
+            start = 0;
+        else if ((size_t)start > self->size)
+            start = self->size;
 
-                if (end < 0)
-			end += self->size;
-		if (end < 0)
-			end = 0;
-		else if ((size_t)end > self->size)
-			end = self->size;
+        if (end < 0)
+            end += self->size;
+        if (end < 0)
+            end = 0;
+        else if ((size_t)end > self->size)
+            end = self->size;
 
-		start_p = self->data + start;
-		end_p = self->data + end;
+        start_p = self->data + start;
+        end_p = self->data + end;
 
-		for (p = (reverse ? end_p - len : start_p);
-		     (p >= start_p) && (p + len <= end_p); p += sign) {
-			Py_ssize_t i;
-			for (i = 0; i < len && needle[i] == p[i]; ++i)
-				/* nothing */;
-			if (i == len) {
-				return PyInt_FromSsize_t(p - self->data);
-			}
-		}
-		return PyInt_FromLong(-1);
-	}
+        for (p = (reverse ? end_p - len : start_p);
+             (p >= start_p) && (p + len <= end_p); p += sign) {
+            Py_ssize_t i;
+            for (i = 0; i < len && needle[i] == p[i]; ++i)
+                /* nothing */;
+            if (i == len) {
+                return PyInt_FromSsize_t(p - self->data);
+            }
+        }
+        return PyInt_FromLong(-1);
+    }
 }
 
 static PyObject *
 mmap_find_method(mmap_object *self,
-		 PyObject *args)
+                 PyObject *args)
 {
-	return mmap_gfind(self, args, 0);
+    return mmap_gfind(self, args, 0);
 }
 
 static PyObject *
 mmap_rfind_method(mmap_object *self,
-		 PyObject *args)
+                 PyObject *args)
 {
-	return mmap_gfind(self, args, 1);
+    return mmap_gfind(self, args, 1);
 }
 
 static int
 is_writeable(mmap_object *self)
 {
-	if (self->access != ACCESS_READ)
-		return 1;
-	PyErr_Format(PyExc_TypeError, "mmap can't modify a readonly memory map.");
-	return 0;
+    if (self->access != ACCESS_READ)
+        return 1;
+    PyErr_Format(PyExc_TypeError, "mmap can't modify a readonly memory map.");
+    return 0;
 }
 
 static int
 is_resizeable(mmap_object *self)
 {
-	if ((self->access == ACCESS_WRITE) || (self->access == ACCESS_DEFAULT))
-		return 1;
-	PyErr_Format(PyExc_TypeError,
-		     "mmap can't resize a readonly or copy-on-write memory map.");
-	return 0;
+    if ((self->access == ACCESS_WRITE) || (self->access == ACCESS_DEFAULT))
+        return 1;
+    PyErr_Format(PyExc_TypeError,
+                 "mmap can't resize a readonly or copy-on-write memory map.");
+    return 0;
 }
 
 
 static PyObject *
 mmap_write_method(mmap_object *self,
-		  PyObject *args)
+                  PyObject *args)
 {
-	Py_ssize_t length;
-	char *data;
+    Py_ssize_t length;
+    char *data;
 
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "s#:write", &data, &length))
-		return(NULL);
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "s#:write", &data, &length))
+        return(NULL);
 
-	if (!is_writeable(self))
-		return NULL;
+    if (!is_writeable(self))
+        return NULL;
 
-	if ((self->pos + length) > self->size) {
-		PyErr_SetString(PyExc_ValueError, "data out of range");
-		return NULL;
-	}
-	memcpy(self->data+self->pos, data, length);
-	self->pos = self->pos+length;
-	Py_INCREF(Py_None);
-	return Py_None;
+    if ((self->pos + length) > self->size) {
+        PyErr_SetString(PyExc_ValueError, "data out of range");
+        return NULL;
+    }
+    memcpy(self->data+self->pos, data, length);
+    self->pos = self->pos+length;
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
 mmap_write_byte_method(mmap_object *self,
-		       PyObject *args)
+                       PyObject *args)
 {
-	char value;
+    char value;
 
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "c:write_byte", &value))
-		return(NULL);
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "c:write_byte", &value))
+        return(NULL);
 
-	if (!is_writeable(self))
-		return NULL;
+    if (!is_writeable(self))
+        return NULL;
 
-	if (self->pos < self->size) {
-		*(self->data+self->pos) = value;
-		self->pos += 1;
-		Py_INCREF(Py_None);
-		return Py_None;
-	}
-	else {
-		PyErr_SetString(PyExc_ValueError, "write byte out of range");
-		return NULL;
-	}
+    if (self->pos < self->size) {
+        *(self->data+self->pos) = value;
+        self->pos += 1;
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    else {
+        PyErr_SetString(PyExc_ValueError, "write byte out of range");
+        return NULL;
+    }
 }
 
 static PyObject *
 mmap_size_method(mmap_object *self,
-		 PyObject *unused)
+                 PyObject *unused)
 {
-	CHECK_VALID(NULL);
+    CHECK_VALID(NULL);
 
 #ifdef MS_WINDOWS
-	if (self->file_handle != INVALID_HANDLE_VALUE) {
-		DWORD low,high;
-		PY_LONG_LONG size;
-		low = GetFileSize(self->file_handle, &high);
-		if (low == INVALID_FILE_SIZE) {
-			/* It might be that the function appears to have failed,
-			   when indeed its size equals INVALID_FILE_SIZE */
-			DWORD error = GetLastError();
-			if (error != NO_ERROR)
-				return PyErr_SetFromWindowsErr(error);
-		}
-		if (!high && low < LONG_MAX)
-			return PyInt_FromLong((long)low);
-		size = (((PY_LONG_LONG)high)<<32) + low;
-		return PyLong_FromLongLong(size);
-	} else {
-		return PyInt_FromSsize_t(self->size);
-	}
+    if (self->file_handle != INVALID_HANDLE_VALUE) {
+        DWORD low,high;
+        PY_LONG_LONG size;
+        low = GetFileSize(self->file_handle, &high);
+        if (low == INVALID_FILE_SIZE) {
+            /* It might be that the function appears to have failed,
+               when indeed its size equals INVALID_FILE_SIZE */
+            DWORD error = GetLastError();
+            if (error != NO_ERROR)
+                return PyErr_SetFromWindowsErr(error);
+        }
+        if (!high && low < LONG_MAX)
+            return PyInt_FromLong((long)low);
+        size = (((PY_LONG_LONG)high)<<32) + low;
+        return PyLong_FromLongLong(size);
+    } else {
+        return PyInt_FromSsize_t(self->size);
+    }
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
-	{
-		struct stat buf;
-		if (-1 == fstat(self->fd, &buf)) {
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
-		return PyInt_FromSsize_t(buf.st_size);
-	}
+    {
+        struct stat buf;
+        if (-1 == fstat(self->fd, &buf)) {
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
+        return PyInt_FromSsize_t(buf.st_size);
+    }
 #endif /* UNIX */
 }
 
@@ -439,223 +439,223 @@
 
 static PyObject *
 mmap_resize_method(mmap_object *self,
-		   PyObject *args)
+                   PyObject *args)
 {
-	Py_ssize_t new_size;
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "n:resize", &new_size) ||
-	    !is_resizeable(self)) {
-		return NULL;
+    Py_ssize_t new_size;
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "n:resize", &new_size) ||
+        !is_resizeable(self)) {
+        return NULL;
 #ifdef MS_WINDOWS
-	} else {
-		DWORD dwErrCode = 0;
-		DWORD off_hi, off_lo, newSizeLow, newSizeHigh;
-		/* First, unmap the file view */
-		UnmapViewOfFile(self->data);
-		self->data = NULL;
-		/* Close the mapping object */
-		CloseHandle(self->map_handle);
-		self->map_handle = NULL;
-		/* Move to the desired EOF position */
+    } else {
+        DWORD dwErrCode = 0;
+        DWORD off_hi, off_lo, newSizeLow, newSizeHigh;
+        /* First, unmap the file view */
+        UnmapViewOfFile(self->data);
+        self->data = NULL;
+        /* Close the mapping object */
+        CloseHandle(self->map_handle);
+        self->map_handle = NULL;
+        /* Move to the desired EOF position */
 #if SIZEOF_SIZE_T > 4
-		newSizeHigh = (DWORD)((self->offset + new_size) >> 32);
-		newSizeLow = (DWORD)((self->offset + new_size) & 0xFFFFFFFF);
-		off_hi = (DWORD)(self->offset >> 32);
-		off_lo = (DWORD)(self->offset & 0xFFFFFFFF);
+        newSizeHigh = (DWORD)((self->offset + new_size) >> 32);
+        newSizeLow = (DWORD)((self->offset + new_size) & 0xFFFFFFFF);
+        off_hi = (DWORD)(self->offset >> 32);
+        off_lo = (DWORD)(self->offset & 0xFFFFFFFF);
 #else
-		newSizeHigh = 0;
-		newSizeLow = (DWORD)(self->offset + new_size);
-		off_hi = 0;
-		off_lo = (DWORD)self->offset;
+        newSizeHigh = 0;
+        newSizeLow = (DWORD)(self->offset + new_size);
+        off_hi = 0;
+        off_lo = (DWORD)self->offset;
 #endif
-		SetFilePointer(self->file_handle,
-			       newSizeLow, &newSizeHigh, FILE_BEGIN);
-		/* Change the size of the file */
-		SetEndOfFile(self->file_handle);
-		/* Create another mapping object and remap the file view */
-		self->map_handle = CreateFileMapping(
-			self->file_handle,
-			NULL,
-			PAGE_READWRITE,
-			0,
-			0,
-			self->tagname);
-		if (self->map_handle != NULL) {
-			self->data = (char *) MapViewOfFile(self->map_handle,
-							    FILE_MAP_WRITE,
-							    off_hi,
-							    off_lo,
-							    new_size);
-			if (self->data != NULL) {
-				self->size = new_size;
-				Py_INCREF(Py_None);
-				return Py_None;
-			} else {
-				dwErrCode = GetLastError();
-				CloseHandle(self->map_handle);
-				self->map_handle = NULL;
-			}
-		} else {
-			dwErrCode = GetLastError();
-		}
-		PyErr_SetFromWindowsErr(dwErrCode);
-		return NULL;
+        SetFilePointer(self->file_handle,
+                       newSizeLow, &newSizeHigh, FILE_BEGIN);
+        /* Change the size of the file */
+        SetEndOfFile(self->file_handle);
+        /* Create another mapping object and remap the file view */
+        self->map_handle = CreateFileMapping(
+            self->file_handle,
+            NULL,
+            PAGE_READWRITE,
+            0,
+            0,
+            self->tagname);
+        if (self->map_handle != NULL) {
+            self->data = (char *) MapViewOfFile(self->map_handle,
+                                                FILE_MAP_WRITE,
+                                                off_hi,
+                                                off_lo,
+                                                new_size);
+            if (self->data != NULL) {
+                self->size = new_size;
+                Py_INCREF(Py_None);
+                return Py_None;
+            } else {
+                dwErrCode = GetLastError();
+                CloseHandle(self->map_handle);
+                self->map_handle = NULL;
+            }
+        } else {
+            dwErrCode = GetLastError();
+        }
+        PyErr_SetFromWindowsErr(dwErrCode);
+        return NULL;
 #endif /* MS_WINDOWS */
 
 #ifdef UNIX
 #ifndef HAVE_MREMAP
-	} else {
-		PyErr_SetString(PyExc_SystemError,
-				"mmap: resizing not available--no mremap()");
-		return NULL;
+    } else {
+        PyErr_SetString(PyExc_SystemError,
+                        "mmap: resizing not available--no mremap()");
+        return NULL;
 #else
-	} else {
-		void *newmap;
+    } else {
+        void *newmap;
 
-		if (ftruncate(self->fd, self->offset + new_size) == -1) {
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
+        if (ftruncate(self->fd, self->offset + new_size) == -1) {
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
 
 #ifdef MREMAP_MAYMOVE
-		newmap = mremap(self->data, self->size, new_size, MREMAP_MAYMOVE);
+        newmap = mremap(self->data, self->size, new_size, MREMAP_MAYMOVE);
 #else
-		#if defined(__NetBSD__)
-			newmap = mremap(self->data, self->size, self->data, new_size, 0);
-		#else
-			newmap = mremap(self->data, self->size, new_size, 0);
-		#endif /* __NetBSD__ */
+        #if defined(__NetBSD__)
+            newmap = mremap(self->data, self->size, self->data, new_size, 0);
+        #else
+            newmap = mremap(self->data, self->size, new_size, 0);
+        #endif /* __NetBSD__ */
 #endif
-		if (newmap == (void *)-1)
-		{
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
-		self->data = newmap;
-		self->size = new_size;
-		Py_INCREF(Py_None);
-		return Py_None;
+        if (newmap == (void *)-1)
+        {
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
+        self->data = newmap;
+        self->size = new_size;
+        Py_INCREF(Py_None);
+        return Py_None;
 #endif /* HAVE_MREMAP */
 #endif /* UNIX */
-	}
+    }
 }
 
 static PyObject *
 mmap_tell_method(mmap_object *self, PyObject *unused)
 {
-	CHECK_VALID(NULL);
-	return PyInt_FromSize_t(self->pos);
+    CHECK_VALID(NULL);
+    return PyInt_FromSize_t(self->pos);
 }
 
 static PyObject *
 mmap_flush_method(mmap_object *self, PyObject *args)
 {
-	Py_ssize_t offset = 0;
-	Py_ssize_t size = self->size;
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "|nn:flush", &offset, &size))
-		return NULL;
-	if ((size_t)(offset + size) > self->size) {
-		PyErr_SetString(PyExc_ValueError, "flush values out of range");
-		return NULL;
-	}
+    Py_ssize_t offset = 0;
+    Py_ssize_t size = self->size;
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "|nn:flush", &offset, &size))
+        return NULL;
+    if ((size_t)(offset + size) > self->size) {
+        PyErr_SetString(PyExc_ValueError, "flush values out of range");
+        return NULL;
+    }
 #ifdef MS_WINDOWS
-	return PyInt_FromLong((long) FlushViewOfFile(self->data+offset, size));
+    return PyInt_FromLong((long) FlushViewOfFile(self->data+offset, size));
 #elif defined(UNIX)
-	/* XXX semantics of return value? */
-	/* XXX flags for msync? */
-	if (-1 == msync(self->data + offset, size, MS_SYNC)) {
-		PyErr_SetFromErrno(mmap_module_error);
-		return NULL;
-	}
-	return PyInt_FromLong(0);
+    /* XXX semantics of return value? */
+    /* XXX flags for msync? */
+    if (-1 == msync(self->data + offset, size, MS_SYNC)) {
+        PyErr_SetFromErrno(mmap_module_error);
+        return NULL;
+    }
+    return PyInt_FromLong(0);
 #else
-	PyErr_SetString(PyExc_ValueError, "flush not supported on this system");
-	return NULL;
+    PyErr_SetString(PyExc_ValueError, "flush not supported on this system");
+    return NULL;
 #endif
 }
 
 static PyObject *
 mmap_seek_method(mmap_object *self, PyObject *args)
 {
-	Py_ssize_t dist;
-	int how=0;
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "n|i:seek", &dist, &how))
-		return NULL;
-	else {
-		size_t where;
-		switch (how) {
-		case 0: /* relative to start */
-			if (dist < 0)
-				goto onoutofrange;
-			where = dist;
-			break;
-		case 1: /* relative to current position */
-			if ((Py_ssize_t)self->pos + dist < 0)
-				goto onoutofrange;
-			where = self->pos + dist;
-			break;
-		case 2: /* relative to end */
-			if ((Py_ssize_t)self->size + dist < 0)
-				goto onoutofrange;
-			where = self->size + dist;
-			break;
-		default:
-			PyErr_SetString(PyExc_ValueError, "unknown seek type");
-			return NULL;
-		}
-		if (where > self->size)
-			goto onoutofrange;
-		self->pos = where;
-		Py_INCREF(Py_None);
-		return Py_None;
-	}
+    Py_ssize_t dist;
+    int how=0;
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "n|i:seek", &dist, &how))
+        return NULL;
+    else {
+        size_t where;
+        switch (how) {
+        case 0: /* relative to start */
+            if (dist < 0)
+                goto onoutofrange;
+            where = dist;
+            break;
+        case 1: /* relative to current position */
+            if ((Py_ssize_t)self->pos + dist < 0)
+                goto onoutofrange;
+            where = self->pos + dist;
+            break;
+        case 2: /* relative to end */
+            if ((Py_ssize_t)self->size + dist < 0)
+                goto onoutofrange;
+            where = self->size + dist;
+            break;
+        default:
+            PyErr_SetString(PyExc_ValueError, "unknown seek type");
+            return NULL;
+        }
+        if (where > self->size)
+            goto onoutofrange;
+        self->pos = where;
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
 
   onoutofrange:
-	PyErr_SetString(PyExc_ValueError, "seek out of range");
-	return NULL;
+    PyErr_SetString(PyExc_ValueError, "seek out of range");
+    return NULL;
 }
 
 static PyObject *
 mmap_move_method(mmap_object *self, PyObject *args)
 {
-	unsigned long dest, src, count;
-	CHECK_VALID(NULL);
-	if (!PyArg_ParseTuple(args, "kkk:move", &dest, &src, &count) ||
-	    !is_writeable(self)) {
-		return NULL;
-	} else {
-		/* bounds check the values */
-		unsigned long pos = src > dest ? src : dest;
-		if (self->size < pos || count > self->size - pos) {
-			PyErr_SetString(PyExc_ValueError,
-					"source or destination out of range");
-			return NULL;
-		} else {
-			memmove(self->data+dest, self->data+src, count);
-			Py_INCREF(Py_None);
-			return Py_None;
-		}
-	}
+    unsigned long dest, src, count;
+    CHECK_VALID(NULL);
+    if (!PyArg_ParseTuple(args, "kkk:move", &dest, &src, &count) ||
+        !is_writeable(self)) {
+        return NULL;
+    } else {
+        /* bounds check the values */
+        unsigned long pos = src > dest ? src : dest;
+        if (self->size < pos || count > self->size - pos) {
+            PyErr_SetString(PyExc_ValueError,
+                            "source or destination out of range");
+            return NULL;
+        } else {
+            memmove(self->data+dest, self->data+src, count);
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
 }
 
 static struct PyMethodDef mmap_object_methods[] = {
-	{"close",	(PyCFunction) mmap_close_method,	METH_NOARGS},
-	{"find",	(PyCFunction) mmap_find_method,		METH_VARARGS},
-	{"rfind",	(PyCFunction) mmap_rfind_method,	METH_VARARGS},
-	{"flush",	(PyCFunction) mmap_flush_method,	METH_VARARGS},
-	{"move",	(PyCFunction) mmap_move_method,		METH_VARARGS},
-	{"read",	(PyCFunction) mmap_read_method,		METH_VARARGS},
-	{"read_byte",	(PyCFunction) mmap_read_byte_method,  	METH_NOARGS},
-	{"readline",	(PyCFunction) mmap_read_line_method,	METH_NOARGS},
-	{"resize",	(PyCFunction) mmap_resize_method,	METH_VARARGS},
-	{"seek",	(PyCFunction) mmap_seek_method,		METH_VARARGS},
-	{"size",	(PyCFunction) mmap_size_method,		METH_NOARGS},
-	{"tell",	(PyCFunction) mmap_tell_method,		METH_NOARGS},
-	{"write",	(PyCFunction) mmap_write_method,	METH_VARARGS},
-	{"write_byte",	(PyCFunction) mmap_write_byte_method,	METH_VARARGS},
-	{NULL,	   NULL}       /* sentinel */
+    {"close",           (PyCFunction) mmap_close_method,        METH_NOARGS},
+    {"find",            (PyCFunction) mmap_find_method,         METH_VARARGS},
+    {"rfind",           (PyCFunction) mmap_rfind_method,        METH_VARARGS},
+    {"flush",           (PyCFunction) mmap_flush_method,        METH_VARARGS},
+    {"move",            (PyCFunction) mmap_move_method,         METH_VARARGS},
+    {"read",            (PyCFunction) mmap_read_method,         METH_VARARGS},
+    {"read_byte",       (PyCFunction) mmap_read_byte_method,    METH_NOARGS},
+    {"readline",        (PyCFunction) mmap_read_line_method,    METH_NOARGS},
+    {"resize",          (PyCFunction) mmap_resize_method,       METH_VARARGS},
+    {"seek",            (PyCFunction) mmap_seek_method,         METH_VARARGS},
+    {"size",            (PyCFunction) mmap_size_method,         METH_NOARGS},
+    {"tell",            (PyCFunction) mmap_tell_method,         METH_NOARGS},
+    {"write",           (PyCFunction) mmap_write_method,        METH_VARARGS},
+    {"write_byte",      (PyCFunction) mmap_write_byte_method,   METH_VARARGS},
+    {NULL,         NULL}       /* sentinel */
 };
 
 /* Functions for treating an mmap'ed file as a buffer */
@@ -663,337 +663,337 @@
 static Py_ssize_t
 mmap_buffer_getreadbuf(mmap_object *self, Py_ssize_t index, const void **ptr)
 {
-	CHECK_VALID(-1);
-	if (index != 0) {
-		PyErr_SetString(PyExc_SystemError,
-				"Accessing non-existent mmap segment");
-		return -1;
-	}
-	*ptr = self->data;
-	return self->size;
+    CHECK_VALID(-1);
+    if (index != 0) {
+        PyErr_SetString(PyExc_SystemError,
+                        "Accessing non-existent mmap segment");
+        return -1;
+    }
+    *ptr = self->data;
+    return self->size;
 }
 
 static Py_ssize_t
 mmap_buffer_getwritebuf(mmap_object *self, Py_ssize_t index, const void **ptr)
 {
-	CHECK_VALID(-1);
-	if (index != 0) {
-		PyErr_SetString(PyExc_SystemError,
-				"Accessing non-existent mmap segment");
-		return -1;
-	}
-	if (!is_writeable(self))
-		return -1;
-	*ptr = self->data;
-	return self->size;
+    CHECK_VALID(-1);
+    if (index != 0) {
+        PyErr_SetString(PyExc_SystemError,
+                        "Accessing non-existent mmap segment");
+        return -1;
+    }
+    if (!is_writeable(self))
+        return -1;
+    *ptr = self->data;
+    return self->size;
 }
 
 static Py_ssize_t
 mmap_buffer_getsegcount(mmap_object *self, Py_ssize_t *lenp)
 {
-	CHECK_VALID(-1);
-	if (lenp)
-		*lenp = self->size;
-	return 1;
+    CHECK_VALID(-1);
+    if (lenp)
+        *lenp = self->size;
+    return 1;
 }
 
 static Py_ssize_t
 mmap_buffer_getcharbuffer(mmap_object *self, Py_ssize_t index, const void **ptr)
 {
-	if (index != 0) {
-		PyErr_SetString(PyExc_SystemError,
-				"accessing non-existent buffer segment");
-		return -1;
-	}
-	*ptr = (const char *)self->data;
-	return self->size;
+    if (index != 0) {
+        PyErr_SetString(PyExc_SystemError,
+                        "accessing non-existent buffer segment");
+        return -1;
+    }
+    *ptr = (const char *)self->data;
+    return self->size;
 }
 
 static Py_ssize_t
 mmap_length(mmap_object *self)
 {
-	CHECK_VALID(-1);
-	return self->size;
+    CHECK_VALID(-1);
+    return self->size;
 }
 
 static PyObject *
 mmap_item(mmap_object *self, Py_ssize_t i)
 {
-	CHECK_VALID(NULL);
-	if (i < 0 || (size_t)i >= self->size) {
-		PyErr_SetString(PyExc_IndexError, "mmap index out of range");
-		return NULL;
-	}
-	return PyString_FromStringAndSize(self->data + i, 1);
+    CHECK_VALID(NULL);
+    if (i < 0 || (size_t)i >= self->size) {
+        PyErr_SetString(PyExc_IndexError, "mmap index out of range");
+        return NULL;
+    }
+    return PyString_FromStringAndSize(self->data + i, 1);
 }
 
 static PyObject *
 mmap_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh)
 {
-	CHECK_VALID(NULL);
-	if (ilow < 0)
-		ilow = 0;
-	else if ((size_t)ilow > self->size)
-		ilow = self->size;
-	if (ihigh < 0)
-		ihigh = 0;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	else if ((size_t)ihigh > self->size)
-		ihigh = self->size;
+    CHECK_VALID(NULL);
+    if (ilow < 0)
+        ilow = 0;
+    else if ((size_t)ilow > self->size)
+        ilow = self->size;
+    if (ihigh < 0)
+        ihigh = 0;
+    if (ihigh < ilow)
+        ihigh = ilow;
+    else if ((size_t)ihigh > self->size)
+        ihigh = self->size;
 
-	return PyString_FromStringAndSize(self->data + ilow, ihigh-ilow);
+    return PyString_FromStringAndSize(self->data + ilow, ihigh-ilow);
 }
 
 static PyObject *
 mmap_subscript(mmap_object *self, PyObject *item)
 {
-	CHECK_VALID(NULL);
-	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 += self->size;
-		if (i < 0 || (size_t)i >= self->size) {
-			PyErr_SetString(PyExc_IndexError,
-				"mmap index out of range");
-			return NULL;
-		}
-		return PyString_FromStringAndSize(self->data + i, 1);
-	}
-	else if (PySlice_Check(item)) {
-		Py_ssize_t start, stop, step, slicelen;
+    CHECK_VALID(NULL);
+    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 += self->size;
+        if (i < 0 || (size_t)i >= self->size) {
+            PyErr_SetString(PyExc_IndexError,
+                "mmap index out of range");
+            return NULL;
+        }
+        return PyString_FromStringAndSize(self->data + i, 1);
+    }
+    else if (PySlice_Check(item)) {
+        Py_ssize_t start, stop, step, slicelen;
 
-		if (PySlice_GetIndicesEx((PySliceObject *)item, self->size,
-				 &start, &stop, &step, &slicelen) < 0) {
-			return NULL;
-		}
-		
-		if (slicelen <= 0)
-			return PyString_FromStringAndSize("", 0);
-		else if (step == 1)
-			return PyString_FromStringAndSize(self->data + start,
-							  slicelen);
-		else {
-			char *result_buf = (char *)PyMem_Malloc(slicelen);
-			Py_ssize_t cur, i;
-			PyObject *result;
+        if (PySlice_GetIndicesEx((PySliceObject *)item, self->size,
+                         &start, &stop, &step, &slicelen) < 0) {
+            return NULL;
+        }
 
-			if (result_buf == NULL)
-				return PyErr_NoMemory();
-			for (cur = start, i = 0; i < slicelen;
-			     cur += step, i++) {
-			     	result_buf[i] = self->data[cur];
-			}
-			result = PyString_FromStringAndSize(result_buf,
-							    slicelen);
-			PyMem_Free(result_buf);
-			return result;
-		}
-	}
-	else {
-		PyErr_SetString(PyExc_TypeError,
-				"mmap indices must be integers");
-		return NULL;
-	}
+        if (slicelen <= 0)
+            return PyString_FromStringAndSize("", 0);
+        else if (step == 1)
+            return PyString_FromStringAndSize(self->data + start,
+                                              slicelen);
+        else {
+            char *result_buf = (char *)PyMem_Malloc(slicelen);
+            Py_ssize_t cur, i;
+            PyObject *result;
+
+            if (result_buf == NULL)
+                return PyErr_NoMemory();
+            for (cur = start, i = 0; i < slicelen;
+                 cur += step, i++) {
+                result_buf[i] = self->data[cur];
+            }
+            result = PyString_FromStringAndSize(result_buf,
+                                                slicelen);
+            PyMem_Free(result_buf);
+            return result;
+        }
+    }
+    else {
+        PyErr_SetString(PyExc_TypeError,
+                        "mmap indices must be integers");
+        return NULL;
+    }
 }
 
 static PyObject *
 mmap_concat(mmap_object *self, PyObject *bb)
 {
-	CHECK_VALID(NULL);
-	PyErr_SetString(PyExc_SystemError,
-			"mmaps don't support concatenation");
-	return NULL;
+    CHECK_VALID(NULL);
+    PyErr_SetString(PyExc_SystemError,
+                    "mmaps don't support concatenation");
+    return NULL;
 }
 
 static PyObject *
 mmap_repeat(mmap_object *self, Py_ssize_t n)
 {
-	CHECK_VALID(NULL);
-	PyErr_SetString(PyExc_SystemError,
-			"mmaps don't support repeat operation");
-	return NULL;
+    CHECK_VALID(NULL);
+    PyErr_SetString(PyExc_SystemError,
+                    "mmaps don't support repeat operation");
+    return NULL;
 }
 
 static int
 mmap_ass_slice(mmap_object *self, Py_ssize_t ilow, Py_ssize_t ihigh, PyObject *v)
 {
-	const char *buf;
+    const char *buf;
 
-	CHECK_VALID(-1);
-	if (ilow < 0)
-		ilow = 0;
-	else if ((size_t)ilow > self->size)
-		ilow = self->size;
-	if (ihigh < 0)
-		ihigh = 0;
-	if (ihigh < ilow)
-		ihigh = ilow;
-	else if ((size_t)ihigh > self->size)
-		ihigh = self->size;
+    CHECK_VALID(-1);
+    if (ilow < 0)
+        ilow = 0;
+    else if ((size_t)ilow > self->size)
+        ilow = self->size;
+    if (ihigh < 0)
+        ihigh = 0;
+    if (ihigh < ilow)
+        ihigh = ilow;
+    else if ((size_t)ihigh > self->size)
+        ihigh = self->size;
 
-	if (v == NULL) {
-		PyErr_SetString(PyExc_TypeError,
-				"mmap object doesn't support slice deletion");
-		return -1;
-	}
-	if (! (PyString_Check(v)) ) {
-		PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment must be a string");
-		return -1;
-	}
-	if (PyString_Size(v) != (ihigh - ilow)) {
-		PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment is wrong size");
-		return -1;
-	}
-	if (!is_writeable(self))
-		return -1;
-	buf = PyString_AsString(v);
-	memcpy(self->data + ilow, buf, ihigh-ilow);
-	return 0;
+    if (v == NULL) {
+        PyErr_SetString(PyExc_TypeError,
+                        "mmap object doesn't support slice deletion");
+        return -1;
+    }
+    if (! (PyString_Check(v)) ) {
+        PyErr_SetString(PyExc_IndexError,
+                        "mmap slice assignment must be a string");
+        return -1;
+    }
+    if (PyString_Size(v) != (ihigh - ilow)) {
+        PyErr_SetString(PyExc_IndexError,
+                        "mmap slice assignment is wrong size");
+        return -1;
+    }
+    if (!is_writeable(self))
+        return -1;
+    buf = PyString_AsString(v);
+    memcpy(self->data + ilow, buf, ihigh-ilow);
+    return 0;
 }
 
 static int
 mmap_ass_item(mmap_object *self, Py_ssize_t i, PyObject *v)
 {
-	const char *buf;
+    const char *buf;
 
-	CHECK_VALID(-1);
-	if (i < 0 || (size_t)i >= self->size) {
-		PyErr_SetString(PyExc_IndexError, "mmap index out of range");
-		return -1;
-	}
-	if (v == NULL) {
-		PyErr_SetString(PyExc_TypeError,
-				"mmap object doesn't support item deletion");
-		return -1;
-	}
-	if (! (PyString_Check(v) && PyString_Size(v)==1) ) {
-		PyErr_SetString(PyExc_IndexError,
-				"mmap assignment must be single-character string");
-		return -1;
-	}
-	if (!is_writeable(self))
-		return -1;
-	buf = PyString_AsString(v);
-	self->data[i] = buf[0];
-	return 0;
+    CHECK_VALID(-1);
+    if (i < 0 || (size_t)i >= self->size) {
+        PyErr_SetString(PyExc_IndexError, "mmap index out of range");
+        return -1;
+    }
+    if (v == NULL) {
+        PyErr_SetString(PyExc_TypeError,
+                        "mmap object doesn't support item deletion");
+        return -1;
+    }
+    if (! (PyString_Check(v) && PyString_Size(v)==1) ) {
+        PyErr_SetString(PyExc_IndexError,
+                        "mmap assignment must be single-character string");
+        return -1;
+    }
+    if (!is_writeable(self))
+        return -1;
+    buf = PyString_AsString(v);
+    self->data[i] = buf[0];
+    return 0;
 }
 
 static int
 mmap_ass_subscript(mmap_object *self, PyObject *item, PyObject *value)
 {
-	CHECK_VALID(-1);
+    CHECK_VALID(-1);
 
-	if (PyIndex_Check(item)) {
-		Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
-		const char *buf;
+    if (PyIndex_Check(item)) {
+        Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+        const char *buf;
 
-		if (i == -1 && PyErr_Occurred())
-			return -1;
-		if (i < 0)
-			i += self->size;
-		if (i < 0 || (size_t)i >= self->size) {
-			PyErr_SetString(PyExc_IndexError,
-				"mmap index out of range");
-			return -1;
-		}
-		if (value == NULL) {
-			PyErr_SetString(PyExc_TypeError,
-				"mmap object doesn't support item deletion");
-			return -1;
-		}
-		if (!PyString_Check(value) || PyString_Size(value) != 1) {
-			PyErr_SetString(PyExc_IndexError,
-		          "mmap assignment must be single-character string");
-			return -1;
-		}
-		if (!is_writeable(self))
-			return -1;
-		buf = PyString_AsString(value);
-		self->data[i] = buf[0];
-		return 0;
-	}
-	else if (PySlice_Check(item)) {
-		Py_ssize_t start, stop, step, slicelen;
-		
-		if (PySlice_GetIndicesEx((PySliceObject *)item,
-					 self->size, &start, &stop,
-					 &step, &slicelen) < 0) {
-			return -1;
-		}
-		if (value == NULL) {
-			PyErr_SetString(PyExc_TypeError,
-				"mmap object doesn't support slice deletion");
-			return -1;
-		}
-		if (!PyString_Check(value)) {
-			PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment must be a string");
-			return -1;
-		}
-		if (PyString_Size(value) != slicelen) {
-			PyErr_SetString(PyExc_IndexError,
-				"mmap slice assignment is wrong size");
-			return -1;
-		}
-		if (!is_writeable(self))
-			return -1;
+        if (i == -1 && PyErr_Occurred())
+            return -1;
+        if (i < 0)
+            i += self->size;
+        if (i < 0 || (size_t)i >= self->size) {
+            PyErr_SetString(PyExc_IndexError,
+                "mmap index out of range");
+            return -1;
+        }
+        if (value == NULL) {
+            PyErr_SetString(PyExc_TypeError,
+                "mmap object doesn't support item deletion");
+            return -1;
+        }
+        if (!PyString_Check(value) || PyString_Size(value) != 1) {
+            PyErr_SetString(PyExc_IndexError,
+              "mmap assignment must be single-character string");
+            return -1;
+        }
+        if (!is_writeable(self))
+            return -1;
+        buf = PyString_AsString(value);
+        self->data[i] = buf[0];
+        return 0;
+    }
+    else if (PySlice_Check(item)) {
+        Py_ssize_t start, stop, step, slicelen;
 
-		if (slicelen == 0)
-			return 0;
-		else if (step == 1) {
-			const char *buf = PyString_AsString(value);
+        if (PySlice_GetIndicesEx((PySliceObject *)item,
+                                 self->size, &start, &stop,
+                                 &step, &slicelen) < 0) {
+            return -1;
+        }
+        if (value == NULL) {
+            PyErr_SetString(PyExc_TypeError,
+                "mmap object doesn't support slice deletion");
+            return -1;
+        }
+        if (!PyString_Check(value)) {
+            PyErr_SetString(PyExc_IndexError,
+                "mmap slice assignment must be a string");
+            return -1;
+        }
+        if (PyString_Size(value) != slicelen) {
+            PyErr_SetString(PyExc_IndexError,
+                "mmap slice assignment is wrong size");
+            return -1;
+        }
+        if (!is_writeable(self))
+            return -1;
 
-			if (buf == NULL)
-				return -1;
-			memcpy(self->data + start, buf, slicelen);
-			return 0;
-		}
-		else {
-			Py_ssize_t cur, i;
-			const char *buf = PyString_AsString(value);
-			
-			if (buf == NULL)
-				return -1;
-			for (cur = start, i = 0; i < slicelen;
-			     cur += step, i++) {
-				self->data[cur] = buf[i];
-			}
-			return 0;
-		}
-	}
-	else {
-		PyErr_SetString(PyExc_TypeError,
-				"mmap indices must be integer");
-		return -1;
-	}
+        if (slicelen == 0)
+            return 0;
+        else if (step == 1) {
+            const char *buf = PyString_AsString(value);
+
+            if (buf == NULL)
+                return -1;
+            memcpy(self->data + start, buf, slicelen);
+            return 0;
+        }
+        else {
+            Py_ssize_t cur, i;
+            const char *buf = PyString_AsString(value);
+
+            if (buf == NULL)
+                return -1;
+            for (cur = start, i = 0; i < slicelen;
+                 cur += step, i++) {
+                self->data[cur] = buf[i];
+            }
+            return 0;
+        }
+    }
+    else {
+        PyErr_SetString(PyExc_TypeError,
+                        "mmap indices must be integer");
+        return -1;
+    }
 }
 
 static PySequenceMethods mmap_as_sequence = {
-	(lenfunc)mmap_length,		       /*sq_length*/
-	(binaryfunc)mmap_concat,	       /*sq_concat*/
-	(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*/
+    (lenfunc)mmap_length,                      /*sq_length*/
+    (binaryfunc)mmap_concat,                   /*sq_concat*/
+    (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 PyMappingMethods mmap_as_mapping = {
-	(lenfunc)mmap_length,
-	(binaryfunc)mmap_subscript,
-	(objobjargproc)mmap_ass_subscript,
+    (lenfunc)mmap_length,
+    (binaryfunc)mmap_subscript,
+    (objobjargproc)mmap_ass_subscript,
 };
 
 static PyBufferProcs mmap_as_buffer = {
-	(readbufferproc)mmap_buffer_getreadbuf,
-	(writebufferproc)mmap_buffer_getwritebuf,
-	(segcountproc)mmap_buffer_getsegcount,
-	(charbufferproc)mmap_buffer_getcharbuffer,
+    (readbufferproc)mmap_buffer_getreadbuf,
+    (writebufferproc)mmap_buffer_getwritebuf,
+    (segcountproc)mmap_buffer_getsegcount,
+    (charbufferproc)mmap_buffer_getcharbuffer,
 };
 
 static PyObject *
@@ -1024,46 +1024,46 @@
 
 
 static PyTypeObject mmap_object_type = {
-	PyVarObject_HEAD_INIT(NULL, 0)
-	"mmap.mmap",				/* tp_name */
-	sizeof(mmap_object),			/* tp_size */
-	0,					/* tp_itemsize */
-	/* methods */
-	(destructor) mmap_object_dealloc,	/* tp_dealloc */
-	0,					/* tp_print */
-	0,					/* tp_getattr */
-	0,					/* tp_setattr */
-	0,					/* tp_compare */
-	0,					/* tp_repr */
-	0,					/* tp_as_number */
-	&mmap_as_sequence,			/*tp_as_sequence*/
-	&mmap_as_mapping,			/*tp_as_mapping*/
-	0,					/*tp_hash*/
-	0,					/*tp_call*/
-	0,					/*tp_str*/
-	PyObject_GenericGetAttr,		/*tp_getattro*/
-	0,					/*tp_setattro*/
-	&mmap_as_buffer,			/*tp_as_buffer*/
-	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GETCHARBUFFER,		/*tp_flags*/
-	mmap_doc,				/*tp_doc*/
-	0,					/* tp_traverse */
-	0,					/* tp_clear */
-	0,					/* tp_richcompare */
-	0,					/* tp_weaklistoffset */
-	0,		                        /* tp_iter */
-	0,		                        /* tp_iternext */
-	mmap_object_methods,			/* tp_methods */
-	0,					/* tp_members */
-	0,					/* tp_getset */
-	0,					/* tp_base */
-	0,					/* tp_dict */
-	0,					/* tp_descr_get */
-	0,					/* tp_descr_set */
-	0,					/* tp_dictoffset */
-	0,                                      /* tp_init */
-	PyType_GenericAlloc,			/* tp_alloc */
-	new_mmap_object,			/* tp_new */
-	PyObject_Del,                           /* tp_free */
+    PyVarObject_HEAD_INIT(NULL, 0)
+    "mmap.mmap",                                /* tp_name */
+    sizeof(mmap_object),                        /* tp_size */
+    0,                                          /* tp_itemsize */
+    /* methods */
+    (destructor) mmap_object_dealloc,           /* tp_dealloc */
+    0,                                          /* tp_print */
+    0,                                          /* tp_getattr */
+    0,                                          /* tp_setattr */
+    0,                                          /* tp_compare */
+    0,                                          /* tp_repr */
+    0,                                          /* tp_as_number */
+    &mmap_as_sequence,                          /*tp_as_sequence*/
+    &mmap_as_mapping,                           /*tp_as_mapping*/
+    0,                                          /*tp_hash*/
+    0,                                          /*tp_call*/
+    0,                                          /*tp_str*/
+    PyObject_GenericGetAttr,                    /*tp_getattro*/
+    0,                                          /*tp_setattro*/
+    &mmap_as_buffer,                            /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GETCHARBUFFER,                   /*tp_flags*/
+    mmap_doc,                                   /*tp_doc*/
+    0,                                          /* tp_traverse */
+    0,                                          /* tp_clear */
+    0,                                          /* tp_richcompare */
+    0,                                          /* tp_weaklistoffset */
+    0,                                          /* tp_iter */
+    0,                                          /* tp_iternext */
+    mmap_object_methods,                        /* tp_methods */
+    0,                                          /* tp_members */
+    0,                                          /* tp_getset */
+    0,                                          /* tp_base */
+    0,                                          /* tp_dict */
+    0,                                          /* tp_descr_get */
+    0,                                          /* tp_descr_set */
+    0,                                          /* tp_dictoffset */
+    0,                                      /* tp_init */
+    PyType_GenericAlloc,                        /* tp_alloc */
+    new_mmap_object,                            /* tp_new */
+    PyObject_Del,                           /* tp_free */
 };
 
 
@@ -1074,23 +1074,23 @@
 static Py_ssize_t
 _GetMapSize(PyObject *o, const char* param)
 {
-	if (o == NULL)
-		return 0;
-	if (PyIndex_Check(o)) {
-		Py_ssize_t i = PyNumber_AsSsize_t(o, PyExc_OverflowError);
-		if (i==-1 && PyErr_Occurred()) 
-			return -1;
-		if (i < 0) {	 
-			PyErr_Format(PyExc_OverflowError,
-					"memory mapped %s must be positive",
-                                        param);
-			return -1;
-		}
-		return i;
-	}
+    if (o == NULL)
+        return 0;
+    if (PyIndex_Check(o)) {
+        Py_ssize_t i = PyNumber_AsSsize_t(o, PyExc_OverflowError);
+        if (i==-1 && PyErr_Occurred())
+            return -1;
+        if (i < 0) {
+            PyErr_Format(PyExc_OverflowError,
+                            "memory mapped %s must be positive",
+                            param);
+            return -1;
+        }
+        return i;
+    }
 
-	PyErr_SetString(PyExc_TypeError, "map size must be an integral value");
-	return -1;
+    PyErr_SetString(PyExc_TypeError, "map size must be an integral value");
+    return -1;
 }
 
 #ifdef UNIX
@@ -1098,124 +1098,124 @@
 new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
 {
 #ifdef HAVE_FSTAT
-	struct stat st;
+    struct stat st;
 #endif
-	mmap_object *m_obj;
-	PyObject *map_size_obj = NULL, *offset_obj = NULL;
-	Py_ssize_t map_size, offset;
-	int fd, flags = MAP_SHARED, prot = PROT_WRITE | PROT_READ;
-	int devzero = -1;
-	int access = (int)ACCESS_DEFAULT;
-	static char *keywords[] = {"fileno", "length",
-                                         "flags", "prot",
-                                         "access", "offset", NULL};
+    mmap_object *m_obj;
+    PyObject *map_size_obj = NULL, *offset_obj = NULL;
+    Py_ssize_t map_size, offset;
+    int fd, flags = MAP_SHARED, prot = PROT_WRITE | PROT_READ;
+    int devzero = -1;
+    int access = (int)ACCESS_DEFAULT;
+    static char *keywords[] = {"fileno", "length",
+                                     "flags", "prot",
+                                     "access", "offset", NULL};
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iO|iiiO", keywords,
-					 &fd, &map_size_obj, &flags, &prot,
-                                         &access, &offset_obj))
-		return NULL;
-	map_size = _GetMapSize(map_size_obj, "size");
-	if (map_size < 0)
-		return NULL;
-        offset = _GetMapSize(offset_obj, "offset");
-        if (offset < 0)
-                return NULL;
+    if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iO|iiiO", keywords,
+                                     &fd, &map_size_obj, &flags, &prot,
+                                     &access, &offset_obj))
+        return NULL;
+    map_size = _GetMapSize(map_size_obj, "size");
+    if (map_size < 0)
+        return NULL;
+    offset = _GetMapSize(offset_obj, "offset");
+    if (offset < 0)
+        return NULL;
 
-	if ((access != (int)ACCESS_DEFAULT) &&
-	    ((flags != MAP_SHARED) || (prot != (PROT_WRITE | PROT_READ))))
-		return PyErr_Format(PyExc_ValueError,
-				    "mmap can't specify both access and flags, prot.");
-	switch ((access_mode)access) {
-	case ACCESS_READ:
-		flags = MAP_SHARED;
-		prot = PROT_READ;
-		break;
-	case ACCESS_WRITE:
-		flags = MAP_SHARED;
-		prot = PROT_READ | PROT_WRITE;
-		break;
-	case ACCESS_COPY:
-		flags = MAP_PRIVATE;
-		prot = PROT_READ | PROT_WRITE;
-		break;
-	case ACCESS_DEFAULT:
-		/* use the specified or default values of flags and prot */
-		break;
-	default:
-		return PyErr_Format(PyExc_ValueError,
-				    "mmap invalid access parameter.");
-	}
+    if ((access != (int)ACCESS_DEFAULT) &&
+        ((flags != MAP_SHARED) || (prot != (PROT_WRITE | PROT_READ))))
+        return PyErr_Format(PyExc_ValueError,
+                            "mmap can't specify both access and flags, prot.");
+    switch ((access_mode)access) {
+    case ACCESS_READ:
+        flags = MAP_SHARED;
+        prot = PROT_READ;
+        break;
+    case ACCESS_WRITE:
+        flags = MAP_SHARED;
+        prot = PROT_READ | PROT_WRITE;
+        break;
+    case ACCESS_COPY:
+        flags = MAP_PRIVATE;
+        prot = PROT_READ | PROT_WRITE;
+        break;
+    case ACCESS_DEFAULT:
+        /* use the specified or default values of flags and prot */
+        break;
+    default:
+        return PyErr_Format(PyExc_ValueError,
+                            "mmap invalid access parameter.");
+    }
 
     if (prot == PROT_READ) {
-        access = ACCESS_READ;
+    access = ACCESS_READ;
     }
 
 #ifdef HAVE_FSTAT
 #  ifdef __VMS
-	/* on OpenVMS we must ensure that all bytes are written to the file */
-	if (fd != -1) {
-	        fsync(fd);
-	}
+    /* on OpenVMS we must ensure that all bytes are written to the file */
+    if (fd != -1) {
+        fsync(fd);
+    }
 #  endif
-	if (fd != -1 && fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
-		if (map_size == 0) {
-			map_size = st.st_size;
-		} else if ((size_t)offset + (size_t)map_size > st.st_size) {
-			PyErr_SetString(PyExc_ValueError,
-					"mmap length is greater than file size");
-			return NULL;
-		}
-	}
+    if (fd != -1 && fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
+        if (map_size == 0) {
+            map_size = st.st_size;
+        } else if ((size_t)offset + (size_t)map_size > st.st_size) {
+            PyErr_SetString(PyExc_ValueError,
+                            "mmap length is greater than file size");
+            return NULL;
+        }
+    }
 #endif
-	m_obj = (mmap_object *)type->tp_alloc(type, 0);
-	if (m_obj == NULL) {return NULL;}
-	m_obj->data = NULL;
-	m_obj->size = (size_t) map_size;
-	m_obj->pos = (size_t) 0;
-        m_obj->offset = offset;
-	if (fd == -1) {
-		m_obj->fd = -1;
-		/* Assume the caller wants to map anonymous memory.
-		   This is the same behaviour as Windows.  mmap.mmap(-1, size)
-		   on both Windows and Unix map anonymous memory.
-		*/
+    m_obj = (mmap_object *)type->tp_alloc(type, 0);
+    if (m_obj == NULL) {return NULL;}
+    m_obj->data = NULL;
+    m_obj->size = (size_t) map_size;
+    m_obj->pos = (size_t) 0;
+    m_obj->offset = offset;
+    if (fd == -1) {
+        m_obj->fd = -1;
+        /* Assume the caller wants to map anonymous memory.
+           This is the same behaviour as Windows.  mmap.mmap(-1, size)
+           on both Windows and Unix map anonymous memory.
+        */
 #ifdef MAP_ANONYMOUS
-		/* BSD way to map anonymous memory */
-		flags |= MAP_ANONYMOUS;
+        /* BSD way to map anonymous memory */
+        flags |= MAP_ANONYMOUS;
 #else
-		/* SVR4 method to map anonymous memory is to open /dev/zero */
-		fd = devzero = open("/dev/zero", O_RDWR);
-		if (devzero == -1) {
-			Py_DECREF(m_obj);
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
+        /* SVR4 method to map anonymous memory is to open /dev/zero */
+        fd = devzero = open("/dev/zero", O_RDWR);
+        if (devzero == -1) {
+            Py_DECREF(m_obj);
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
 #endif
-	} else {
-		m_obj->fd = dup(fd);
-		if (m_obj->fd == -1) {
-			Py_DECREF(m_obj);
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
-	}
-	
-	m_obj->data = mmap(NULL, map_size,
-			   prot, flags,
-			   fd, offset);
+    } else {
+        m_obj->fd = dup(fd);
+        if (m_obj->fd == -1) {
+            Py_DECREF(m_obj);
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
+    }
 
-	if (devzero != -1) {
-		close(devzero);
-	}
+    m_obj->data = mmap(NULL, map_size,
+                       prot, flags,
+                       fd, offset);
 
-	if (m_obj->data == (char *)-1) {
-	        m_obj->data = NULL;
-		Py_DECREF(m_obj);
-		PyErr_SetFromErrno(mmap_module_error);
-		return NULL;
-	}
-	m_obj->access = (access_mode)access;
-	return (PyObject *)m_obj;
+    if (devzero != -1) {
+        close(devzero);
+    }
+
+    if (m_obj->data == (char *)-1) {
+        m_obj->data = NULL;
+        Py_DECREF(m_obj);
+        PyErr_SetFromErrno(mmap_module_error);
+        return NULL;
+    }
+    m_obj->access = (access_mode)access;
+    return (PyObject *)m_obj;
 }
 #endif /* UNIX */
 
@@ -1223,250 +1223,250 @@
 static PyObject *
 new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
 {
-	mmap_object *m_obj;
-	PyObject *map_size_obj = NULL, *offset_obj = NULL;
-	Py_ssize_t map_size, offset;
-	DWORD off_hi;	/* upper 32 bits of offset */
-	DWORD off_lo;	/* lower 32 bits of offset */
-	DWORD size_hi;	/* upper 32 bits of size */
-	DWORD size_lo;	/* lower 32 bits of size */
-	char *tagname = "";
-	DWORD dwErr = 0;
-	int fileno;
-	HANDLE fh = 0;
-	int access = (access_mode)ACCESS_DEFAULT;
-	DWORD flProtect, dwDesiredAccess;
-	static char *keywords[] = { "fileno", "length",
-                                          "tagname",
-                                          "access", "offset", NULL };
+    mmap_object *m_obj;
+    PyObject *map_size_obj = NULL, *offset_obj = NULL;
+    Py_ssize_t map_size, offset;
+    DWORD off_hi;       /* upper 32 bits of offset */
+    DWORD off_lo;       /* lower 32 bits of offset */
+    DWORD size_hi;      /* upper 32 bits of size */
+    DWORD size_lo;      /* lower 32 bits of size */
+    char *tagname = "";
+    DWORD dwErr = 0;
+    int fileno;
+    HANDLE fh = 0;
+    int access = (access_mode)ACCESS_DEFAULT;
+    DWORD flProtect, dwDesiredAccess;
+    static char *keywords[] = { "fileno", "length",
+                                      "tagname",
+                                      "access", "offset", NULL };
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iO|ziO", keywords,
-					 &fileno, &map_size_obj,
-					 &tagname, &access, &offset_obj)) {
-		return NULL;
-	}
+    if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iO|ziO", keywords,
+                                     &fileno, &map_size_obj,
+                                     &tagname, &access, &offset_obj)) {
+        return NULL;
+    }
 
-	switch((access_mode)access) {
-	case ACCESS_READ:
-		flProtect = PAGE_READONLY;
-		dwDesiredAccess = FILE_MAP_READ;
-		break;
-	case ACCESS_DEFAULT:  case ACCESS_WRITE:
-		flProtect = PAGE_READWRITE;
-		dwDesiredAccess = FILE_MAP_WRITE;
-		break;
-	case ACCESS_COPY:
-		flProtect = PAGE_WRITECOPY;
-		dwDesiredAccess = FILE_MAP_COPY;
-		break;
-	default:
-		return PyErr_Format(PyExc_ValueError,
-				    "mmap invalid access parameter.");
-	}
+    switch((access_mode)access) {
+    case ACCESS_READ:
+        flProtect = PAGE_READONLY;
+        dwDesiredAccess = FILE_MAP_READ;
+        break;
+    case ACCESS_DEFAULT:  case ACCESS_WRITE:
+        flProtect = PAGE_READWRITE;
+        dwDesiredAccess = FILE_MAP_WRITE;
+        break;
+    case ACCESS_COPY:
+        flProtect = PAGE_WRITECOPY;
+        dwDesiredAccess = FILE_MAP_COPY;
+        break;
+    default:
+        return PyErr_Format(PyExc_ValueError,
+                            "mmap invalid access parameter.");
+    }
 
-	map_size = _GetMapSize(map_size_obj, "size");
-	if (map_size < 0)
-		return NULL;
-        offset = _GetMapSize(offset_obj, "offset");
-        if (offset < 0)
-                return NULL;
+    map_size = _GetMapSize(map_size_obj, "size");
+    if (map_size < 0)
+        return NULL;
+    offset = _GetMapSize(offset_obj, "offset");
+    if (offset < 0)
+        return NULL;
 
-	/* assume -1 and 0 both mean invalid filedescriptor
-	   to 'anonymously' map memory.
-	   XXX: fileno == 0 is a valid fd, but was accepted prior to 2.5.
-	   XXX: Should this code be added?
-	   if (fileno == 0)
-	   	PyErr_Warn(PyExc_DeprecationWarning,
-			   "don't use 0 for anonymous memory");
-	 */
-	if (fileno != -1 && fileno != 0) {
-		fh = (HANDLE)_get_osfhandle(fileno);
-		if (fh==(HANDLE)-1) {
-			PyErr_SetFromErrno(mmap_module_error);
-			return NULL;
-		}
-		/* Win9x appears to need us seeked to zero */
-		lseek(fileno, 0, SEEK_SET);
-	}
+    /* assume -1 and 0 both mean invalid filedescriptor
+       to 'anonymously' map memory.
+       XXX: fileno == 0 is a valid fd, but was accepted prior to 2.5.
+       XXX: Should this code be added?
+       if (fileno == 0)
+        PyErr_Warn(PyExc_DeprecationWarning,
+                   "don't use 0 for anonymous memory");
+     */
+    if (fileno != -1 && fileno != 0) {
+        fh = (HANDLE)_get_osfhandle(fileno);
+        if (fh==(HANDLE)-1) {
+            PyErr_SetFromErrno(mmap_module_error);
+            return NULL;
+        }
+        /* Win9x appears to need us seeked to zero */
+        lseek(fileno, 0, SEEK_SET);
+    }
 
-	m_obj = (mmap_object *)type->tp_alloc(type, 0);
-	if (m_obj == NULL)
-		return NULL;
-	/* Set every field to an invalid marker, so we can safely
-	   destruct the object in the face of failure */
-	m_obj->data = NULL;
-	m_obj->file_handle = INVALID_HANDLE_VALUE;
-	m_obj->map_handle = NULL;
-	m_obj->tagname = NULL;
-	m_obj->offset = offset;
+    m_obj = (mmap_object *)type->tp_alloc(type, 0);
+    if (m_obj == NULL)
+        return NULL;
+    /* Set every field to an invalid marker, so we can safely
+       destruct the object in the face of failure */
+    m_obj->data = NULL;
+    m_obj->file_handle = INVALID_HANDLE_VALUE;
+    m_obj->map_handle = NULL;
+    m_obj->tagname = NULL;
+    m_obj->offset = offset;
 
-	if (fh) {
-		/* It is necessary to duplicate the handle, so the
-		   Python code can close it on us */
-		if (!DuplicateHandle(
-			GetCurrentProcess(), /* source process handle */
-			fh, /* handle to be duplicated */
-			GetCurrentProcess(), /* target proc handle */
-			(LPHANDLE)&m_obj->file_handle, /* result */
-			0, /* access - ignored due to options value */
-			FALSE, /* inherited by child processes? */
-			DUPLICATE_SAME_ACCESS)) { /* options */
-			dwErr = GetLastError();
-			Py_DECREF(m_obj);
-			PyErr_SetFromWindowsErr(dwErr);
-			return NULL;
-		}
-		if (!map_size) {
-			DWORD low,high;
-			low = GetFileSize(fh, &high);
-			/* low might just happen to have the value INVALID_FILE_SIZE;
-    			   so we need to check the last error also. */
-			if (low == INVALID_FILE_SIZE &&
-			    (dwErr = GetLastError()) != NO_ERROR) {
-				Py_DECREF(m_obj);
-				return PyErr_SetFromWindowsErr(dwErr);
-			}	
-				    
+    if (fh) {
+        /* It is necessary to duplicate the handle, so the
+           Python code can close it on us */
+        if (!DuplicateHandle(
+            GetCurrentProcess(), /* source process handle */
+            fh, /* handle to be duplicated */
+            GetCurrentProcess(), /* target proc handle */
+            (LPHANDLE)&m_obj->file_handle, /* result */
+            0, /* access - ignored due to options value */
+            FALSE, /* inherited by child processes? */
+            DUPLICATE_SAME_ACCESS)) { /* options */
+            dwErr = GetLastError();
+            Py_DECREF(m_obj);
+            PyErr_SetFromWindowsErr(dwErr);
+            return NULL;
+        }
+        if (!map_size) {
+            DWORD low,high;
+            low = GetFileSize(fh, &high);
+            /* low might just happen to have the value INVALID_FILE_SIZE;
+               so we need to check the last error also. */
+            if (low == INVALID_FILE_SIZE &&
+                (dwErr = GetLastError()) != NO_ERROR) {
+                Py_DECREF(m_obj);
+                return PyErr_SetFromWindowsErr(dwErr);
+            }
+
 #if SIZEOF_SIZE_T > 4
-			m_obj->size = (((size_t)high)<<32) + low;
+            m_obj->size = (((size_t)high)<<32) + low;
 #else
-			if (high)
-				/* File is too large to map completely */
-				m_obj->size = (size_t)-1;
-			else
-				m_obj->size = low;
+            if (high)
+                /* File is too large to map completely */
+                m_obj->size = (size_t)-1;
+            else
+                m_obj->size = low;
 #endif
-		} else {
-			m_obj->size = map_size;
-		}
-	}
-	else {
-		m_obj->size = map_size;
-	}
+        } else {
+            m_obj->size = map_size;
+        }
+    }
+    else {
+        m_obj->size = map_size;
+    }
 
-	/* set the initial position */
-	m_obj->pos = (size_t) 0;
+    /* set the initial position */
+    m_obj->pos = (size_t) 0;
 
-	/* set the tag name */
-	if (tagname != NULL && *tagname != '\0') {
-		m_obj->tagname = PyMem_Malloc(strlen(tagname)+1);
-		if (m_obj->tagname == NULL) {
-			PyErr_NoMemory();
-			Py_DECREF(m_obj);
-			return NULL;
-		}
-		strcpy(m_obj->tagname, tagname);
-	}
-	else
-		m_obj->tagname = NULL;
+    /* set the tag name */
+    if (tagname != NULL && *tagname != '\0') {
+        m_obj->tagname = PyMem_Malloc(strlen(tagname)+1);
+        if (m_obj->tagname == NULL) {
+            PyErr_NoMemory();
+            Py_DECREF(m_obj);
+            return NULL;
+        }
+        strcpy(m_obj->tagname, tagname);
+    }
+    else
+        m_obj->tagname = NULL;
 
-	m_obj->access = (access_mode)access;
-	/* DWORD is a 4-byte int.  If we're on a box where size_t consumes
-	 * more than 4 bytes, we need to break it apart.  Else (size_t
-	 * consumes 4 bytes), C doesn't define what happens if we shift
-	 * right by 32, so we need different code.
-	 */
+    m_obj->access = (access_mode)access;
+    /* DWORD is a 4-byte int.  If we're on a box where size_t consumes
+     * more than 4 bytes, we need to break it apart.  Else (size_t
+     * consumes 4 bytes), C doesn't define what happens if we shift
+     * right by 32, so we need different code.
+     */
 #if SIZEOF_SIZE_T > 4
-	size_hi = (DWORD)((offset + m_obj->size) >> 32);
-	size_lo = (DWORD)((offset + m_obj->size) & 0xFFFFFFFF);
-	off_hi = (DWORD)(offset >> 32);
-	off_lo = (DWORD)(offset & 0xFFFFFFFF);
+    size_hi = (DWORD)((offset + m_obj->size) >> 32);
+    size_lo = (DWORD)((offset + m_obj->size) & 0xFFFFFFFF);
+    off_hi = (DWORD)(offset >> 32);
+    off_lo = (DWORD)(offset & 0xFFFFFFFF);
 #else
-	size_hi = 0;
-	size_lo = (DWORD)(offset + m_obj->size);
-	off_hi = 0;
-	off_lo = (DWORD)offset;
+    size_hi = 0;
+    size_lo = (DWORD)(offset + m_obj->size);
+    off_hi = 0;
+    off_lo = (DWORD)offset;
 #endif
-	/* For files, it would be sufficient to pass 0 as size.
-	   For anonymous maps, we have to pass the size explicitly. */
-	m_obj->map_handle = CreateFileMapping(m_obj->file_handle,
-					      NULL,
-					      flProtect,
-					      size_hi,
-					      size_lo,
-					      m_obj->tagname);
-	if (m_obj->map_handle != NULL) {
-		m_obj->data = (char *) MapViewOfFile(m_obj->map_handle,
-						     dwDesiredAccess,
-						     off_hi,
-						     off_lo,
-						     m_obj->size);
-		if (m_obj->data != NULL)
-			return (PyObject *)m_obj;
-		else {
-			dwErr = GetLastError();
-			CloseHandle(m_obj->map_handle);
-			m_obj->map_handle = NULL;
-		}
-	} else
-		dwErr = GetLastError();
-	Py_DECREF(m_obj);
-	PyErr_SetFromWindowsErr(dwErr);
-	return NULL;
+    /* For files, it would be sufficient to pass 0 as size.
+       For anonymous maps, we have to pass the size explicitly. */
+    m_obj->map_handle = CreateFileMapping(m_obj->file_handle,
+                                          NULL,
+                                          flProtect,
+                                          size_hi,
+                                          size_lo,
+                                          m_obj->tagname);
+    if (m_obj->map_handle != NULL) {
+        m_obj->data = (char *) MapViewOfFile(m_obj->map_handle,
+                                             dwDesiredAccess,
+                                             off_hi,
+                                             off_lo,
+                                             m_obj->size);
+        if (m_obj->data != NULL)
+            return (PyObject *)m_obj;
+        else {
+            dwErr = GetLastError();
+            CloseHandle(m_obj->map_handle);
+            m_obj->map_handle = NULL;
+        }
+    } else
+        dwErr = GetLastError();
+    Py_DECREF(m_obj);
+    PyErr_SetFromWindowsErr(dwErr);
+    return NULL;
 }
 #endif /* MS_WINDOWS */
 
 static void
 setint(PyObject *d, const char *name, long value)
 {
-	PyObject *o = PyInt_FromLong(value);
-	if (o && PyDict_SetItemString(d, name, o) == 0) {
-		Py_DECREF(o);
-	}
+    PyObject *o = PyInt_FromLong(value);
+    if (o && PyDict_SetItemString(d, name, o) == 0) {
+        Py_DECREF(o);
+    }
 }
 
 PyMODINIT_FUNC
 initmmap(void)
 {
-	PyObject *dict, *module;
+    PyObject *dict, *module;
 
-	if (PyType_Ready(&mmap_object_type) < 0)
-		return;
+    if (PyType_Ready(&mmap_object_type) < 0)
+        return;
 
-	module = Py_InitModule("mmap", NULL);
-	if (module == NULL)
-		return;
-	dict = PyModule_GetDict(module);
-	if (!dict)
-		return;
-	mmap_module_error = PyErr_NewException("mmap.error",
-		PyExc_EnvironmentError , NULL);
-	if (mmap_module_error == NULL)
-		return;
-	PyDict_SetItemString(dict, "error", mmap_module_error);
-	PyDict_SetItemString(dict, "mmap", (PyObject*) &mmap_object_type);
+    module = Py_InitModule("mmap", NULL);
+    if (module == NULL)
+        return;
+    dict = PyModule_GetDict(module);
+    if (!dict)
+        return;
+    mmap_module_error = PyErr_NewException("mmap.error",
+        PyExc_EnvironmentError , NULL);
+    if (mmap_module_error == NULL)
+        return;
+    PyDict_SetItemString(dict, "error", mmap_module_error);
+    PyDict_SetItemString(dict, "mmap", (PyObject*) &mmap_object_type);
 #ifdef PROT_EXEC
-	setint(dict, "PROT_EXEC", PROT_EXEC);
+    setint(dict, "PROT_EXEC", PROT_EXEC);
 #endif
 #ifdef PROT_READ
-	setint(dict, "PROT_READ", PROT_READ);
+    setint(dict, "PROT_READ", PROT_READ);
 #endif
 #ifdef PROT_WRITE
-	setint(dict, "PROT_WRITE", PROT_WRITE);
+    setint(dict, "PROT_WRITE", PROT_WRITE);
 #endif
 
 #ifdef MAP_SHARED
-	setint(dict, "MAP_SHARED", MAP_SHARED);
+    setint(dict, "MAP_SHARED", MAP_SHARED);
 #endif
 #ifdef MAP_PRIVATE
-	setint(dict, "MAP_PRIVATE", MAP_PRIVATE);
+    setint(dict, "MAP_PRIVATE", MAP_PRIVATE);
 #endif
 #ifdef MAP_DENYWRITE
-	setint(dict, "MAP_DENYWRITE", MAP_DENYWRITE);
+    setint(dict, "MAP_DENYWRITE", MAP_DENYWRITE);
 #endif
 #ifdef MAP_EXECUTABLE
-	setint(dict, "MAP_EXECUTABLE", MAP_EXECUTABLE);
+    setint(dict, "MAP_EXECUTABLE", MAP_EXECUTABLE);
 #endif
 #ifdef MAP_ANONYMOUS
-	setint(dict, "MAP_ANON", MAP_ANONYMOUS);
-	setint(dict, "MAP_ANONYMOUS", MAP_ANONYMOUS);
+    setint(dict, "MAP_ANON", MAP_ANONYMOUS);
+    setint(dict, "MAP_ANONYMOUS", MAP_ANONYMOUS);
 #endif
 
-	setint(dict, "PAGESIZE", (long)my_getpagesize());
+    setint(dict, "PAGESIZE", (long)my_getpagesize());
 
-	setint(dict, "ALLOCATIONGRANULARITY", (long)my_getallocationgranularity()); 
+    setint(dict, "ALLOCATIONGRANULARITY", (long)my_getallocationgranularity());
 
-	setint(dict, "ACCESS_READ", ACCESS_READ);
-	setint(dict, "ACCESS_WRITE", ACCESS_WRITE);
-	setint(dict, "ACCESS_COPY", ACCESS_COPY);
+    setint(dict, "ACCESS_READ", ACCESS_READ);
+    setint(dict, "ACCESS_WRITE", ACCESS_WRITE);
+    setint(dict, "ACCESS_COPY", ACCESS_COPY);
 }