Sorry maybe I wasn't clear enough, but my purpose was more to track packages facing such cases (a subset of my first pattern):
chiark-scripts: /usr/lib/python2.7/dist-packages/fishdescriptor/__init__.py chiark-scripts: /usr/lib/python2.7/dist-packages/fishdescriptor/indonor.py gtimelog: /usr/lib/python3.9/dist-packages/gtimelog/paths.py nautilus-scripts-manager: /usr/lib/python3.9/dist-packages/Nautilus_scripts_manager-2.0.egg-info nautilus-scripts-manager: /usr/lib/python3.9/dist-packages/__pycache__/nautilus_scripts_manager_ui.cpython-39.pyc nautilus-scripts-manager: /usr/lib/python3.9/dist-packages/nautilus_scripts_manager_ui.py odoo-14: /usr/lib/python3/dist-packages/odoo/addons/point_of_sale/tools/posbox/overwrite_after_init/usr/local/lib/python3.7/dist-packages/v4l2.py.iotpatch patool: /usr/lib/python3.8/dist-packages/_patool_configdata.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/__init__.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/client.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/config.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/content.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/data.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/dates.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/filesys.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/__init__.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/common.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/person.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/person_outgoing.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/resource.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/__init__.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/access.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/common.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/freebusy.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/manifest.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/handlers/scheduling/quota.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/i18n.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/imports.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/mail.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/period.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/profile.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/sql.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/__init__.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/common.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/database/__init__.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/database/common.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/database/postgresql.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/file.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/stores/manifest.py python-imiptools: /usr/lib/python2.7/dist-packages/imiptools/text.py python-imiptools: /usr/lib/python2.7/dist-packages/vCalendar.py python-imiptools: /usr/lib/python2.7/dist-packages/vContent.py python-imiptools: /usr/lib/python2.7/dist-packages/vRecurrence.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/__init__.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/calendar.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/data.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/env.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/event.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/profile.py python-imipweb: /usr/lib/python2.7/dist-packages/imipweb/resource.py python-libewf: /usr/lib/python2.7/dist-packages/pyewf.so python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl.i18n-3.0.1.egg-info/dependency_links.txt python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl.i18n-3.0.1.egg-info/namespace_packages.txt python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl.i18n-3.0.1.egg-info/requires.txt python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl.i18n-3.0.1.egg-info/top_level.txt python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl/i18n/testing/messages/xx/LC_MESSAGES/flufl.mo python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl/i18n/testing/messages/xx/LC_MESSAGES/flufl.po python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl/i18n/testing/messages/yy/LC_MESSAGES/flufl.mo python3-flufl.i18n: /usr/lib/python3/dist-packages/debian/python3-flufl.i18n/usr/lib/python3.9/dist-packages/flufl/i18n/testing/messages/yy/LC_MESSAGES/flufl.po python3-mne: /usr/lib/python2.7/dist-packages/mne/html/bootstrap.min.css python3-mne: /usr/lib/python2.7/dist-packages/mne/html/d3.v3.min.js python3-mne: /usr/lib/python2.7/dist-packages/mne/html/jquery-1.10.2.min.js python3-mne: /usr/lib/python2.7/dist-packages/mne/html/jquery-ui.min.css python3-mne: /usr/lib/python2.7/dist-packages/mne/html/jquery-ui.min.js ratpoison: /usr/lib/python2.7/dist-packages/ratpoison.py urjtag: /usr/lib/python2.7/dist-packages/urjtag-1.0.egg-info urjtag: /usr/lib/python2.7/dist-packages/urjtag.x86_64-linux-gnu.so Is there something to do regarding that when a Debian release support only one Python version? QA tool to track this? Submit report to each packages? Thanks!