https://github.com/mo-han/mo-han-toolbox#subscriptablefileio
from mylib.os_util import SubscriptableFileIO
with SubscriptableFileIO('filepath') as f:
f[-10:] = b'123abc'
https://github.com/mo-han/mo-han-toolbox#subscriptablefileio
from mylib.os_util import SubscriptableFileIO
with SubscriptableFileIO('filepath') as f:
f[-10:] = b'123abc'