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open('\\\\.\\PHYSICALDRIVE1','rb',0)
fails since python 3.5
At the end of _io_FileIO___init___impl function 
_Py_fstat call raise OSError: [WinError 1] Incorrect function
_Py_fstat result not used on windows in this place. 
 440 self->blksize = DEFAULT_BUFFER_SIZE;
---> 441 if (_Py_fstat(self->fd, &fdfstat) < 0)
 442 goto error;
 443 #if defined(S_ISDIR) && defined(EISDIR)
 444 /* On Unix, open will succeed for directories.
 445 In Python, there should be no file objects referring to
 446 directories, so we need a check. */
 447 if (S_ISDIR(fdfstat.st_mode)) {
 448 errno = EISDIR;
 449 PyErr_SetFromErrnoWithFilenameObject(PyExc_IOError, nameobj);
 450 goto error;
 451 }
 452 #endif /* defined(S_ISDIR) */
 453 #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
 454 if (fdfstat.st_blksize > 1)
 455 self->blksize = fdfstat.st_blksize;
 456 #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */