This bug was fixed in the package apt-xapian-index - 0.47ubuntu5
--------------- apt-xapian-index (0.47ubuntu5) xenial; urgency=medium
* debian/patches/04_bilingual.patch: When using --force --update on update-apt-xapian-index, be sure package names passed to python3-apt are strings, not bytes. (LP: #1526267)
-- Barry Warsaw <email address hidden> Wed, 16 Dec 2015 14:12:44 -0500
This bug was fixed in the package apt-xapian-index - 0.47ubuntu5
---------------
apt-xapian-index (0.47ubuntu5) xenial; urgency=medium
* debian/ patches/ 04_bilingual. patch: When using --force --update on apt-xapian- index, be sure package names passed to python3-apt
update-
are strings, not bytes. (LP: #1526267)
-- Barry Warsaw <email address hidden> Wed, 16 Dec 2015 14:12:44 -0500