Maintainers for idle are Matthias Klose <doko@debian.org>.
You may want to refer to the following packages that are part of the same source: 2to3, idle3, libpython3-all-dbg, libpython3-all-dev, libpython3-dbg, libpython3-dev, libpython3-stdlib, python3, python3-all, python3-all-dbg, python3-all-dev, python3-all-venv, python3-dbg, python3-dev, python3-doc, python3-examples, python3-full, python3-minimal, python3-nopie, python3-venv.
You might like to refer to the idle package page, to the Package Tracking System, or to the source package src:python3-defaults's bug page.
If you find a bug not listed here, please report it.