Model sys's python implementation

pypy

has many built-in functio开发者_StackOverflow中文版n use python implementation.example:link

but,i can't find model 'sys' implementation.

how can i get it.

import sys
print help(sys)

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The sys module is implemented in C: http://svn.python.org/view/python/trunk/Python/sysmodule.c?view=markup

There is no Python source for it, because it's entirely operating system interfaces that cannot be implemented in pure Python.

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Abstraction can only be taken so far, Python strives to be a system/platform independent language and the sys module being what it is has to be platform specific and cannot be implemented in pure python.