Monday, May 16, 2011

the keys to the kingdom

Most of the low-level guts of an operating system are only exposed to C.  Enter ctypes, part of the python standard library which allows python to call C code natively.

For example, say you are trying to access some function of open-ssl that is not exposed through the ssl module.

>>> import ctypes
>>> libssl = ctypes.cdll.LoadLibrary('')
>>> libssl.PEM_read_bio_PrivateKey
<_FuncPtr object at 0x7fc001ba3a10>

With ctypes, your code is a full peer of C/C++ in how it can interact with the OS.

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