import msvcrt, mmap
from ctypes import *

FILE_MAP_ALL_ACCESS = 0xF001F
INVALID_HANDLE_VALUE = 0xFFFFFFFF
SHMEMSIZE = 256
PAGE_READWRITE = 0x04
szName = c_char_p("MyFileMappingObject_ctypes")
szMsg = "Message from Python(ctypes) process"

hMapObject = windll.kernel32.CreateFileMappingA(INVALID_HANDLE_VALUE, None, PAGE_READWRITE, 0, SHMEMSIZE, szName)
if (hMapObject == 0):
	print "Could not open file mapping object"
	raise WinError()

pBuf = windll.kernel32.MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, SHMEMSIZE)
if (pBuf == 0):
	print "Could not map view of file"
	raise WinError()
else:
	memcpy = cdll.msvcrt.memcpy
	memcpy(pBuf, szMsg, len(szMsg))

shmem = mmap.mmap(0, 256, "MyFileMappingObject", mmap.ACCESS_WRITE)
shmem.write("Message from Python process")

msvcrt.getch()

windll.kernel32.UnmapViewOfFile(pBuf)
windll.kernel32.CloseHandle(hMapObject)
shmem.close()