Some messages in a LISTSERV archive may have no date.
This can be solved by e.g. adding a condition to ListservMessage.create_message_id() as:
if date is None:
date = 'None'
The handling of such corner case should be included in tests/unit/test_listserv.py as ListservMessage.create_message_id() is only called in ListservMessage.to_mbox()
Some messages in a LISTSERV archive may have no date. This can be solved by e.g. adding a condition to
ListservMessage.create_message_id()
as:The handling of such corner case should be included in
tests/unit/test_listserv.py
asListservMessage.create_message_id()
is only called inListservMessage.to_mbox()