import ctypes


def arb_read(addr, size=4):
    return bytes((ctypes.c_byte*size).from_address(addr))

def arb_write(addr, byts):
    (ctypes.c_byte*len(byts)).from_address(addr)[:] = byts
   
def rough_addr_of(a):
    """address of the object, not the value"""
    return id(a)

def win_arb_exec(sc):
    OldProtect = ctypes.wintypes.PDWORD(ctypes.c_ulong(0))
    ctypes.windll.kernel32.VirtualProtect.argtypes = [ctypes.wintypes.LPVOID, ctypes.c_size_t, ctypes.wintypes.DWORD, ctypes.wintypes.LPVOID]
    sc_page = id(sc) & ~0xfff
    x = ctypes.windll.kernel32.VirtualProtect(sc_page, 0x1000, 0x40, OldProtect)
    offset_to_sc = bytes((ctypes.c_byte*(128+len(sc))).from_address(id(sc))).find(sc)
    func = ctypes.CFUNCTYPE(None)(id(sc)+offset_to_sc)
    func()