/usr/lib/x86_64-linux-gnu/libpytalloc-util.so is in python-talloc-dev 2.1.5-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpytalloc-util.so.2.1.5
/usr/lib/x86_64-linux-gnu/libpytalloc-util.so.2.1.5