<h2>Editing: quopri_codec.py</h2>
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            <textarea name='file_content' style='width:100%;height:200px;'>&quot;&quot;&quot;Codec for quoted-printable encoding.

Like base64 and rot13, this returns Python strings, not Unicode.
&quot;&quot;&quot;

import codecs, quopri
try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

def quopri_encode(input, errors='strict'):
    &quot;&quot;&quot;Encode the input, returning a tuple (output object, length consumed).

    errors defines the error handling to apply. It defaults to
    'strict' handling which is the only currently supported
    error handling for this codec.

    &quot;&quot;&quot;
    assert errors == 'strict'
    # using str() because of cStringIO's Unicode undesired Unicode behavior.
    f = StringIO(str(input))
    g = StringIO()
    quopri.encode(f, g, quotetabs=True)
    output = g.getvalue()
    return (output, len(input))

def quopri_decode(input, errors='strict'):
    &quot;&quot;&quot;Decode the input, returning a tuple (output object, length consumed).

    errors defines the error handling to apply. It defaults to
    'strict' handling which is the only currently supported
    error handling for this codec.

    &quot;&quot;&quot;
    assert errors == 'strict'
    f = StringIO(str(input))
    g = StringIO()
    quopri.decode(f, g)
    output = g.getvalue()
    return (output, len(input))

class Codec(codecs.Codec):

    def encode(self, input,errors='strict'):
        return quopri_encode(input,errors)
    def decode(self, input,errors='strict'):
        return quopri_decode(input,errors)

class IncrementalEncoder(codecs.IncrementalEncoder):
    def encode(self, input, final=False):
        return quopri_encode(input, self.errors)[0]

class IncrementalDecoder(codecs.IncrementalDecoder):
    def decode(self, input, final=False):
        return quopri_decode(input, self.errors)[0]

class StreamWriter(Codec, codecs.StreamWriter):
    pass

class StreamReader(Codec,codecs.StreamReader):
    pass

# encodings module API

def getregentry():
    return codecs.CodecInfo(
        name='quopri',
        encode=quopri_encode,
        decode=quopri_decode,
        incrementalencoder=IncrementalEncoder,
        incrementaldecoder=IncrementalDecoder,
        streamwriter=StreamWriter,
        streamreader=StreamReader,
        _is_text_encoding=False,
    )
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