Hi,
I had the «same issue» upgrading from debian 11 to 12, package
mailman3-web failed in postconf.
What I found was:
With a config /etc/mailman3/mailman-web.py with this in it :
# EMAILNAME = 'localhost.local'
EMAILNAME = 'lists.example.com'
In /var/cache/debconf/config.dat I get
Name: mailman3-web/emailname
Template: mailman3-web/emailname
Value: #localhost.local
Owners: mailman3-web, unknown
Flags: seen
And then mailman3-web.postinst crashes when it tries to get
mailman3-web/emailname variable.
I changed my config deleting the commented line, but I think the real
issue is with get_config_option() in mailman3-web.config
It also worked by changing the sed regex in mailman3-web.config :
=> s/^\s*$option\s*=\s*'\(.*\)'\s*$/\1/
Or by using python to get the config variable:
=> python3 -c "from importlib.machinery import
SourceFileLoader;mail=SourceFileLoader('mailman-web','/etc/mailman3/mailman-web.py').load_module();print(mail.${option});"
Thanks for your work.
ArnAud.
