# Copyright (C) 2001-2004 Python Software Foundation
# Contact: email-sig@python.org
"""Encodings and related functions."""
from quopri
import encodestring
as _encodestring
enc
= _encodestring(s
, quotetabs
=True)
# Must encode spaces, which quopri.encodestring() doesn't do
return enc
.replace(' ', '=20')
# We can't quite use base64.encodestring() since it tacks on a "courtesy
hasnewline
= (s
[-1] == '\n')
value
= base64
.encodestring(s
)
if not hasnewline
and value
[-1] == '\n':
"""Encode the message's payload in Base64.
Also, add an appropriate Content-Transfer-Encoding header.
msg
['Content-Transfer-Encoding'] = 'base64'
"""Encode the message's payload in quoted-printable.
Also, add an appropriate Content-Transfer-Encoding header.
msg
['Content-Transfer-Encoding'] = 'quoted-printable'
"""Set the Content-Transfer-Encoding header to 7bit or 8bit."""
# There's no payload. For backwards compatibility we use 7bit
msg
['Content-Transfer-Encoding'] = '7bit'
# We play a trick to make this go fast. If encoding to ASCII succeeds, we
# know the data must be 7bit, otherwise treat it as 8bit.
# iso-2022-* is non-ASCII but still 7-bit
charset
= msg
.get_charset()
output_cset
= charset
and charset
.output_charset
if output_cset
and output_cset
.lower().startswith('iso-2202-'):
msg
['Content-Transfer-Encoding'] = '7bit'
msg
['Content-Transfer-Encoding'] = '8bit'
msg
['Content-Transfer-Encoding'] = '7bit'