Is "PyIntBlocks are never returned to the system before shutdown" right?

[ZHONG Chen]

"PyIntBlocks are never returned to the system before shutdown"
I saw this comment in Python 2.6.8's source code: Objects/intobject.c line
25

But in the function PyInt_ClearFreeList()
It will call PyMem_FREE(list) for empty int block.

Why?

-- 
myheimu
    2012.4

School of Software, 2007, Tsinghua University, Beijing, PRC.
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