Size of objects in Python

ObjectSize.py

# Tried with Python 3.2.2 64-bit
import sys

a = None
sys.getsizeof( a ) # 16

a = 0
sys.getsizeof( a ) # 24

a = 12345678
sys.getsizeof( a ) # 28

a = ""
sys.getsizeof( a ) # 58

a = "hello"
sys.getsizeof( a ) # 68 (2 bytes per letter)

a = []
sys.getsizeof( a ) # 64

a = tuple()
sys.getsizeof( a ) # 48

a = set()
sys.getsizeof( a ) # 224

a = {}
sys.getsizeof( a ) # 272