On 10/22/2016 03:24 AM, dieter wrote: > In addition to the previous (excellent) responses: > > A "message" models a MIME (RFC1521 Multipurpose Internet Mail Extensions) > message (the international standard for the structure of emails). > The standard tells you that a message consists essentially of two > parts: a set of headers and a body and describes standard headers > and their intended meaning (e.g. "To", "From", "Subject", ...). > It allows a message to contain non-standard headers as well. > > With this knowledge, your "keys" related question can be answered: > there is a (case insensitive) key for each header actually present > in your message. If the message contains several headers with > the same name, the subscription access gives you the first one; > there is an alternative method to access all of them.
Thanks. I needed to search for emails to/from a specific person and extract them from a [Google mail archive][1]. [1]: https://takeout.google.com/settings/takeout This is my quick and dirty little one-shot script to get the job done. search_mbox.py -------------------------------------------------------------- #!/usr/bin/env python2.7 import mailbox import sys name = sys.argv[2].lower() for message in mailbox.mbox(sys.argv[1]): if message.has_key("From") and message.has_key("To"): addrs = message.get_all("From") addrs.extend(message.get_all("To")) for addr in addrs: addrl = addr.lower() if addrl.find(name) > 0: print message break -------------------------------------------------------------- Usage: ./search_mbox.py archive.mbox hanzer > hanzer.mbox -- https://mail.python.org/mailman/listinfo/python-list
