I: python3-pyxdameraulevenshtein: hardening-no-bindnow
[usr/lib/python3/dist-packages/pyxdameraulevenshtein.cpython-310-x86_64-linux-gnu.so]
and there is nothing about CFLAGS or the like in the setup.py file.
So if having this hardening flag enabled is a good thing, it should
probably be enabled somewhere within the pybuild system, rather than
every individual package with an extension file doing it.
Hardening is generally a good thing, but can break code in subtle ways.
I suppose that's why it was decided that enabling it by default in
Debian was deemed too risky.
Enabling it is quite easy, though: Just add
export DEB_BUILD_MAINT_OPTIONS = hardening=+all
near the top of your d/rules file. Some build systems may require
additional flags, as documented here: https://wiki.debian.org/Hardening
Also, note that hardening-no-bindnow is an Informational message, so not
strictly something that needs to be acted upon:
https://lintian.debian.org/tags/hardening-no-bindnow
YMMV.