get filesystem attribs (like immutable) with python

lsattr.py

import fcntl
from array import array

# FS constants - see /uapi/linux/fs.h in kernel source
# or <elixir.free-electrons.com/linux/latest/source/include/uapi/linux/fs.h>
FS_IOC_GETFLAGS	= 0x80086601
FS_IMMUTABLE_FL	= 0x010

with open(FILENAME) as f:
  arg = array('L', [0])
  fcntl.ioctl(f.fileno(), FS_IOC_GETFLAGS, arg, True)

# other flags are defined in the fs.h kernel source
a_immutable = bool(arg[0] & 0x010)