Comment 5 for bug 1860504

dpkg -l | grep software-properties
ii python3-software-properties 0.98.5 all manage the repositories that you install software from
ii software-properties-common 0.98.5 all manage the repositories that you install software from (common)
ii software-properties-gtk 0.98.5 all manage the repositories that you install software from (gtk)

debsums software-properties-common
/usr/bin/add-apt-repository OK
/usr/lib/python3/dist-packages/softwareproperties/dbus/SoftwarePropertiesDBus.py OK
/usr/lib/python3/dist-packages/softwareproperties/dbus/__init__.py OK
/usr/lib/software-properties/software-properties-dbus OK
/usr/share/dbus-1/system-services/com.ubuntu.SoftwareProperties.service OK
/usr/share/doc/software-properties-common/copyright OK
/usr/share/man/man1/add-apt-repository.1.gz OK
/usr/share/polkit-1/actions/com.ubuntu.softwareproperties.policy OK