Well, I noticed a second problem with my code.
On 2025-05-30 01:00, Stephen J. Turnbull wrote:
Thomas Ward via Mailman-Developers writes:
> (1) What is the datatype of `msg` in the archive_message class?
Ask not what is the data type of `msg`. Ask instead what is the data
type of `msg['Subject']`. I expect that it's `email.header.Header`.
Try `TID_PATTERN.search(str(message_subject))[0]`.
... and knowing the type that `msg` is out of the box is important to
that. In later Python, there is a class of message called
`email.message.EmailMessage` which has a few extra things than just
`email.message.Message` (I think this is yielded by `email.parser`
objects). By knowing that the class is essentially a subclass with some
fixes of `email.message.Message` then the `iter_attachments()` approach
I was using to iterate over attachments in the email message won't work
because that is only part of `email.message.EmailMessage`.
Which is where knowing the core datatype of `msg` passed into the
archiver function by Mailman helps. Because now I have to do the Old
School(TM) way of iterating over `msg.walk()` and then determining if
the message part has a content disposition and then confirm if it's an
attachment or not and then have fun with it.
This said, `msg.get('Subject', '')` also seemed to fail (but I usually
use that instead of referring to `msg['HEADER']` directly where possible)
I'll be testing this today, but knowing what the core datatype of `msg`
is will actually help with knowing which functions I need to call
against the `msg`. ;)
Thomas
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