python. get size of an object
<p>I need to know size of objects in my python program.
I have <code>for</code> loop in which I need to know size of objects.
If I use <code>sys.getsizeof</code> then memory does not free instantly
and I cannot see actual size. Is there way to do it?</p>

<p>My objects are json and string. In the worst case I can 
save them to file and look at file sizes. But how can I look
at file size from python code?</p>

<p><strong>Edit</strong>: size of serialised objects is more important for me.
so second part of the question is essential. </p>

<p>Thanks.</p>
