? -- how to use shared data?

[Gleb Kulikov]

Hello, all!

How can i gentle solve the follows problem:

There is some binary buffer with fixed length, placed into named shared
memory block. Data in that area is frequently changed by external (hardware)
device. I'm afraid, is too uneffective constantly create new memory chunks
and copy data by PyString_FromStringAndSize. Is there any safe method to make
direct binding (reflection) of Python's string (or what can i use) to that
memory buffer? 

Thank you.