/usr/ is in python3-tk 3.6.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/python3.6/
/usr/lib/python3.6/lib-dynload/
/usr/lib/python3.6/lib-dynload/_tkinter.cpython-36m-x86_64-linux-gnu.so
/usr/lib/python3.6/tkinter/
/usr/lib/python3.6/tkinter/__init__.py
/usr/lib/python3.6/tkinter/__main__.py
/usr/lib/python3.6/tkinter/colorchooser.py
/usr/lib/python3.6/tkinter/commondialog.py
/usr/lib/python3.6/tkinter/constants.py
/usr/lib/python3.6/tkinter/dialog.py
/usr/lib/python3.6/tkinter/dnd.py
/usr/lib/python3.6/tkinter/filedialog.py
/usr/lib/python3.6/tkinter/font.py
/usr/lib/python3.6/tkinter/messagebox.py
/usr/lib/python3.6/tkinter/scrolledtext.py
/usr/lib/python3.6/tkinter/simpledialog.py
/usr/lib/python3.6/tkinter/tix.py
/usr/lib/python3.6/tkinter/ttk.py
/usr/lib/python3.7/
/usr/lib/python3.7/lib-dynload/
/usr/lib/python3.7/lib-dynload/_tkinter.cpython-37m-x86_64-linux-gnu.so
/usr/lib/python3.7/tkinter/
/usr/lib/python3.7/tkinter/__init__.py
/usr/lib/python3.7/tkinter/__main__.py
/usr/lib/python3.7/tkinter/colorchooser.py
/usr/lib/python3.7/tkinter/commondialog.py
/usr/lib/python3.7/tkinter/constants.py
/usr/lib/python3.7/tkinter/dialog.py
/usr/lib/python3.7/tkinter/dnd.py
/usr/lib/python3.7/tkinter/filedialog.py
/usr/lib/python3.7/tkinter/font.py
/usr/lib/python3.7/tkinter/messagebox.py
/usr/lib/python3.7/tkinter/scrolledtext.py
/usr/lib/python3.7/tkinter/simpledialog.py
/usr/lib/python3.7/tkinter/tix.py
/usr/lib/python3.7/tkinter/ttk.py
/usr/share/
/usr/share/doc/
/usr/share/doc/python3-tk/
/usr/share/doc/python3-tk/README.Debian
/usr/share/doc/python3-tk/README.Tk
/usr/share/doc/python3-tk/changelog.Debian.gz
/usr/share/doc/python3-tk/copyright
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/python3-tk