[Pkg-mailman-hackers] Bug#959094: mailman3 failed after dpkg-reconfigure

[Antoon Pardon]

Package: mailman3
Version: 3.2.1-1
Severity: normal

Dear Maintainer,

After installing PostgreSQL I started dpkg-reconfigure mailman3
At the end it stated:


   *Service for mailman3 failed.
   
   The mailman3 service didn't start correctly. This is probably because
   you didn't configure the database appropriately.
   The service won't work until you do so.
   If you actually DID install the database appropriately, please report

As far as I could make out, the problem was caused by choosing a
password with special characters which resulted in an unusable
database url.

-- System Information:
Debian Release: 10.3
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.15.0-58-generic (SMP w/72 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE, TAINT_LIVEPATCH
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mailman3 depends on:
ii  dbconfig-pgsql              2.0.11+deb10u1
ii  dbconfig-sqlite3            2.0.11+deb10u1
ii  debconf [debconf-2.0]       1.5.71
ii  logrotate                   3.14.0-4
ii  lsb-base                    10.2019051400
ii  python3                     3.7.3-1
ii  python3-aiosmtpd            1.2-3
ii  python3-alembic             1.0.0-3
ii  python3-click               7.0-1
ii  python3-dnspython           1.16.0-1
ii  python3-falcon              1.0.0-2+b3
ii  python3-flufl.bounce        3.0-1
ii  python3-flufl.i18n          2.0.1-1
ii  python3-flufl.lock          3.2-1
ii  python3-lazr.config         2.2-1
ii  python3-passlib             1.7.1-1
ii  python3-psycopg2            2.7.7-1
ii  python3-public              0.5-1
ii  python3-requests            2.21.0-1
ii  python3-sqlalchemy          1.2.18+ds1-2
ii  python3-zope.component      4.3.0-1
ii  python3-zope.configuration  4.0.3-3
ii  python3-zope.event          4.2.0-1
ii  python3-zope.interface      4.3.2-1+b2
ii  ucf                         3.0038+nmu1

Versions of packages mailman3 recommends:
ii  postfix [mail-transport-agent]  3.4.8-0+10debu1

Versions of packages mailman3 suggests:
pn  lynx | www-browser  <none>
ii  mailman3-doc        3.2.1-1
ii  postgresql          11+200+deb10u3

-- debconf information:
  mailman3/remove-error: abort
  mailman3/remote/newhost:
* mailman3/pgsql/admin-user: postgres
  mailman3/pgsql/no-empty-passwords:
  mailman3/remote/port:
  mailman3/dbconfig-upgrade: true
* mailman3/pgsql/method: Unix socket
  mailman3/remote/host: localhost
  mailman3/db/basepath: /var/lib/mailman3/data
  mailman3/upgrade-backup: true
  mailman3/pgsql/changeconf: false
* mailman3/pgsql/authmethod-admin: ident
  mailman3/upgrade-error: abort
* mailman3/passwords-do-not-match:
  mailman3/purge: false
  mailman3/mysql/admin-user:
* mailman3/dbconfig-install: true
  mailman3/pgsql/manualconf:
* mailman3/db/dbname: mailman.db
  mailman3/internal/reconfiguring: false
* mailman3/pgsql/authmethod-user: password
* mailman3/dbconfig-reinstall: true
* mailman3/db/app-user: mailman3
  mailman3/mysql/method: Unix socket
* mailman3/config_hyperkitty: true
  mailman3/internal/skip-preseed: false
  mailman3/dbconfig-remove: true
* mailman3/database-type: pgsql
  mailman3/install-error: abort
  mailman3/missing-db-package-error: abort
* mailman3/init_service_failed: