If you want to find or measure the size of memory a data structure or objects occupies, try the function below.
import sys
def get_size(obj, seen=None):
"""Recursively finds size of objects"""
size = sys.getsizeof(obj)
if seen is None:
seen = set()
obj_id = id(obj)
if obj_id in seen:
return 0
# Important mark as seen *before* entering recursion to gracefully handle
# self-referential objects
seen.add(obj_id)
if isinstance(obj, dict):
size += sum([get_size(v, seen) for v in obj.values()])
size += sum([get_size(k, seen) for k in obj.keys()])
elif hasattr(obj, '__dict__'):
size += get_size(obj.__dict__, seen)
elif hasattr(obj, '__iter__') and not isinstance(obj, (str, bytes, bytearray)):
size += sum([get_size(i, seen) for i in obj])
return size
print(get_size(list(range(100))))
print(get_size(list(range(1000))))
print(get_size([[ i for i in range(10)] for j in range(100)]))
print(get_size([[ i for i in range(100)] for j in range(10)]))
-----
3804
37108
20388
12108
