How do I determine the size of an object in Python?

You can use the sys.getsizeof() function to determine the size of an object in bytes. Here is an example:

Get the size of an object in bytes in Python

import sys

my_list = [1, 2, 3, 4, 5]
print(sys.getsizeof(my_list))

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This will output the size of the my_list object in bytes. Please be aware that getsizeof() function will give the size of the object in memory and not the actual object size on disk.