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How to find size of an object in Python?

In python, the usage of sys.getsizeof() can be done to find the storage size of a particular object that occupies some space in the memory. This function returns the size of the object in bytes. It takes at most two arguments i.e Object itself.

Note: Only the memory consumption directly attributed to the object is accounted for, not the memory consumption of objects it refers to.

Examples:  

Input: 
# Any Integer Value
sys.getsizeof(4)

Expected Output: 4 bytes (Size of integer is 4bytes)
Actual Output: 28 bytes

Here’s how we can interpret the actual output. Have a look at the table below: 

Type of Object

Actual Size

Notes

int

28

NA

str

49

+1 per additional character (49+total length of characters)

tuple

40 (Empty Tuple)

+8 per additional item in a tuple ( 40 + 8*total length of items )

list

56 (Empty List)

+8 per additional item in a list ( 56 + 8*total length of items )

set

216

0-4 take the size of 216. 5-19 take size 728. 20th will take 2264 and so on…

dict

232

0-5 takes a size of 232. 6-10 size will be 360. 11th will take 640 and so on…

func def

136

No attributes and default arguments

Example:

Python3




import sys
 
# Getting size using getsizeof() method and lately
# printing the same.
a = sys.getsizeof(12)
print(a)
 
b = sys.getsizeof('Lazyroar')
print(b)
 
c = sys.getsizeof(('g', 'e', 'e', 'k', 's'))
print(c)
 
d = sys.getsizeof(['g', 'e', 'e', 'k', 's'])
print(d)
 
e = sys.getsizeof({1, 2, 3, 4})
print(e)
 
f = sys.getsizeof({1: 'a', 2: 'b', 3: 'c', 4: 'd'})
print(f)


Output:

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