def getsize(obj):
"""
Recursively iterate to sum size of object & members.
Returns
-------
size : int
The size of the object in units of "Bytes".
Credit
------
* How do I determine the size of an object in Python?
https://stackoverflow.com/a/30316760/4856091
"""
zero_depth_bases = (str, bytes, Number, range, bytearray)
def inner(obj, _seen_ids=set()):
obj_id = id(obj)
if obj_id in _seen_ids:
return 0
_seen_ids.add(obj_id)
size = sys.getsizeof(obj)
if isinstance(obj, zero_depth_bases):
# bypass remaining control flow and return
pass
elif isinstance(obj, (tuple, list, Set, deque)):
size += sum(inner(i) for i in obj)
elif isinstance(obj, Mapping) or hasattr(obj, "items"):
size += sum(inner(k) + inner(v) for k, v in obj.items())
# Check for custom object instances - may subclass above too
if hasattr(obj, "__dict__"):
size += inner(vars(obj))
if hasattr(obj, "__slots__"):
# can have ``__slots__`` with ``__dict__``
size += sum(inner(getattr(obj, s))
for s in obj.__slots__ if hasattr(obj, s))
return size
return inner(obj)
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