[Pkg-mailman-hackers] Bug#922243: mailman3-full : Depends: mailman3 but it is not going to be installed

[kenokenobingo]

Package: mailman3-full
Severity: normal

Dear Maintainer,

there are problems with the dependencies while trying to install `mailman3-full` via aptitutde.

The following packages have unmet dependencies:
 mailman3-full : Depends: mailman3 but it is not going to be installed
                  Depends: mailman3-web (>= 0+20180916-1) but it is not going to be installed
		                   Depends: python3-mailman-hyperkitty but it is not going to be installed
				   E: Unable to correct problems, you have held broken packages.

-- System Information:
Debian Release: 9.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-8-amd64 (SMP w/1 CPU core)
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)