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# Copyright (C) 2001-2006 Python Software Foundation 

# Author: Barry Warsaw 

# Contact: email-sig@python.org 

 

"""Class representing image/* type MIME documents.""" 

 

__all__ = ['MIMEImage'] 

 

import imghdr 

 

from email import encoders 

from email.mime.nonmultipart import MIMENonMultipart 

 

 

 

class MIMEImage(MIMENonMultipart): 

    """Class for generating image/* type MIME documents.""" 

 

    def __init__(self, _imagedata, _subtype=None, 

                 _encoder=encoders.encode_base64, **_params): 

        """Create an image/* type MIME document. 

 

        _imagedata is a string containing the raw image data.  If this data 

        can be decoded by the standard Python `imghdr' module, then the 

        subtype will be automatically included in the Content-Type header. 

        Otherwise, you can specify the specific image subtype via the _subtype 

        parameter. 

 

        _encoder is a function which will perform the actual encoding for 

        transport of the image data.  It takes one argument, which is this 

        Image instance.  It should use get_payload() and set_payload() to 

        change the payload to the encoded form.  It should also add any 

        Content-Transfer-Encoding or other headers to the message as 

        necessary.  The default encoding is Base64. 

 

        Any additional keyword arguments are passed to the base class 

        constructor, which turns them into parameters on the Content-Type 

        header. 

        """ 

        if _subtype is None: 

            _subtype = imghdr.what(None, _imagedata) 

        if _subtype is None: 

            raise TypeError('Could not guess image MIME subtype') 

        MIMENonMultipart.__init__(self, 'image', _subtype, **_params) 

        self.set_payload(_imagedata) 

        _encoder(self)