diff -r 6b1df8905012 Doc/library/stdtypes.rst
--- a/Doc/library/stdtypes.rst	Mon Oct 10 00:24:34 2016 +0000
+++ b/Doc/library/stdtypes.rst	Mon Oct 31 03:58:17 2016 +0900
@@ -482,13 +482,13 @@
         b'\x04\x00'
         >>> (1024).to_bytes(10, byteorder='big')
         b'\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00'
         >>> (-1024).to_bytes(10, byteorder='big', signed=True)
         b'\xff\xff\xff\xff\xff\xff\xff\xff\xfc\x00'
         >>> x = 1000
-        >>> x.to_bytes((x.bit_length() // 8) + 1, byteorder='little')
+        >>> x.to_bytes((x.bit_length() + 7) // 8, byteorder='little')
         b'\xe8\x03'
 
     The integer is represented using *length* bytes.  An :exc:`OverflowError`
     is raised if the integer is not representable with the given number of
     bytes.