New submission from Adrien Saladin <adrien.sala...@gmail.com>: Hi,
The following script shows two problems with email.mime.text.MIMEText: - first the use of msg['To'] seems confusing because its dictionnary-like syntax made me think it acts as a "set or replace", but in fact is working as a stream operation - second this behavior allows for the same field to be repeated several times in a header which is discouraged in rfc-822 and forbidden for many fields in rfc-2822. #########################################" from email.mime.text import MIMEText msg = MIMEText("""Hello World""") dest = ["o...@example.com", "t...@example.com", "th...@example.com", "f...@example.com"] for d in dest: msg["From"] = "mys...@example.com" msg["To"] = d msg["subject"] = "just a test" print (msg) # + send the buggy mail... ################################### the last sent mail will looks like this: --------------------- Hello World Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: mys...@example.com To: o...@example.com subject: just a test From: mys...@example.com To: t...@example.com subject: just a test From: mys...@example.com To: th...@example.com subject: just a test From: mys...@example.com To: f...@example.com subject: just a test Hello World ---------------------- I see some possible modifications: * make the [] operator work as a dictionnary-like syntax. So calling msg['To'] multiple times would simply replace the previous 'To:' field. The additional constraint is that some fields like 'comments' or 'keywords' can be repeated * (or) throw an error when some fields are repeated in this list: from, sender, reply-to, to, cc, bcc, message-id, in-reply-to, references, subject ---------- components: Library (Lib) messages: 125473 nosy: adrien-saladin priority: normal severity: normal status: open title: email module should not allow some header field repetitions versions: Python 2.6, Python 3.1 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10839> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com