# On Python 3.9.2
>>> sys.getsizeof(None)
16
>>> sys.getsizeof(0)
24
>>> sys.getsizeof(True)
28
I just wanted to know if there is any object with its size less than the size of None object, i.e. less than 16 bytes.
2 Answers
As suggested by @quamrana, I tried to sort all the built-in objects based on their sizes and got into the following observation. The code snippet I used:
import builtins, sys, inspect
classes = [i for i in builtins.__dict__.values() if inspect.isclass(i)]
objects = []
for i in classes:
try:
objects.append((i, sys.getsizeof(i())))
except:
...
objects.sort(key=lambda x: x[1])
for i in objects[:10]:
print(i)
And the stdout for the above snippet is:
(<class 'object'>, 16)
(<class 'bool'>, 24)
(<class 'float'>, 24)
(<class 'int'>, 24)
(<class 'complex'>, 32)
(<class 'bytes'>, 33)
(<class 'tuple'>, 40)
(<class '_frozen_importlib.BuiltinImporter'>, 48)
(<class 'str'>, 49)
(<class 'bytearray'>, 56)
These are the 10 objects which has least size on Python 3.9.2 which runs on my machine. As per @martineau's comment, the size of each object varies across different python versions and machines.
Comments
Noneis 8.Nonehas the smallest size. I know that alsoEllipsisbuilt in should have 16 bytes. But as @martineau said size of built ins is different across python versions