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When parsing messages using python's libraries email and mailbox, the
subject is often encoded using some kind of = notation. Apparently, the
encoding used in this notation is specified like =?iso-8859-2?Q?=... or
=?iso-8859-2?B?=. Is there a python library function to decode such a
subject, returning a unicode string? The use would be like

human_readable = cool_library.decode_equals(message['Subject'])

Thank you, Dan

Dan Polansky wrote:
> When parsing messages using python's libraries email and mailbox, the
> subject is often encoded using some kind of = notation. Apparently, the
> encoding used in this notation is specified like =?iso-8859-2?Q?=... or
> =?iso-8859-2?B?=. Is there a python library function to decode such a
> subject, returning a unicode string? The use would be like
>
> human_readable = cool_library.decode_equals(message['Subject'])


parts = email.Header.decode_header(header)
new_header = email.Header.make_header(parts)
human_readable = unicode(new_header)



--

hilsen/regards Max M, Denmark

http://www.mxm.dk/
IT's Mad Science

# / 2005-04-20 00:30:35 -0700:
> When parsing messages using python's libraries email and mailbox, the
> subject is often encoded using some kind of = notation. Apparently, the
> encoding used in this notation is specified like =?iso-8859-2?Q?=... or
> =?iso-8859-2?B?=.

That's RFC 2047 encoding, both examples introduce an ISO8859-2
string, the first variant says it's ascii-ized using
"Q"uoted-Printable, the other says the string is "B"ase64-encoded.

> Is there a python library function to decode such a
> subject, returning a unicode string? The use would be like
>
> human_readable = cool_library.decode_equals(message['Subject'])

quoting from http://docs.python.org/lib/module-email.Header.html

>>> from email.Header import decode_header
>>> decode_header('=?iso-8859-1?q?p=F6stal?=')
[('p\xf6stal', 'iso-8859-1')]

--
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You don't know, man. You don't KNOW.
Cause you weren't THERE. http://bash.org/?255991

Dan Polansky:

> When parsing messages using python's libraries email and mailbox, the
> subject is often encoded using some kind of = notation. Apparently, the
> encoding used in this notation is specified like =?iso-8859-2?Q?=... or
> =?iso-8859-2?B?=. Is there a python library function to decode such a
> subject, returning a unicode string? The use would be like
>
> human_readable = cool_library.decode_equals(message['Subject'])

Here is some code from a front end to Mailman moderation pages:

import email.Header
hdr = email.Header.make_header(email.Header.decode_heade r(sub))

Neil

Max, thanks; that was helpful. Roman, your explanation was helpful as
well. Dan