bpo-12414: Update code_sizeof() to take in account co_extra memory. (#1168)

diff --git a/Misc/ACKS b/Misc/ACKS
index 8c44397..d4f20c5 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1063,6 +1063,7 @@
 Matti Mäki
 Jörg Müller
 Kaushik N
+Dong-hee Na
 Dale Nagata
 John Nagle
 Takahiro Nakayama
diff --git a/Misc/NEWS b/Misc/NEWS
index 3ec02e0..7e09eff 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,10 @@
 Core and Builtins
 -----------------
 
+- bpo-12414: sys.getsizeof() on a code object now returns the sizes 
+  which includes the code struct and sizes of objects which it references.
+  Patch by Dong-hee Na.
+
 - bpo-29839: len() now raises ValueError rather than OverflowError if
   __len__() returned a large negative integer.