# Copyright (C) 2001-2006 Python Software Foundation

# Author: Barry Warsaw

# Contact: email-sig@python.org

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"""Encodings and related functions."""

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__all__ = [

    'encode_7or8bit',

    'encode_base64',

    'encode_noop',

    'encode_quopri',

    ]

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import base64

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from quopri import encodestring as _encodestring

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​

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def _qencode(s):

    enc = _encodestring(s, quotetabs=True)

    # Must encode spaces, which quopri.encodestring() doesn't do

    return enc.replace(' ', '=20')

​

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def _bencode(s):

    # We can't quite use base64.encodestring() since it tacks on a "courtesy

    # newline".  Blech!

    if not s:

        return s

    hasnewline = (s[-1] == '\n')

    value = base64.encodestring(s)

    if not hasnewline and value[-1] == '\n':

        return value[:-1]

    return value

​

​

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def encode_base64(msg):

    """Encode the message's payload in Base64.

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    Also, add an appropriate Content-Transfer-Encoding header.

    """