mail attachment with non-ascii name

[Bernard Delmée]

I am using the "email" module to decode incoming messages.
(with msg = email.message_from_file( msg_file ))
Sometimes an attachment has its name (as returned by
msg.walk().part.get_filename()) not in ASCII (e.g.
'=?iso-8859-1?q?somefile=2ezip?=') How can I turn that into
simply 'somefile.zip' ? I have looked into email.Utils and
codecs, but cannot find what should work.

TIA,

Bernard.