1 # Copyright (C) 2001-2006 Python Software Foundation 2 # Author: Barry Warsaw 3 # Contact: email-sig (at] python.org 4 5 """Class representing image/* type MIME documents.""" 6 7 __all__ = ['MIMEImage'] 8 9 import imghdr 10 11 from email import encoders 12 from email.mime.nonmultipart import MIMENonMultipart 13 14 15 17 class MIMEImage(MIMENonMultipart): 18 """Class for generating image/* type MIME documents.""" 19 20 def __init__(self, _imagedata, _subtype=None, 21 _encoder=encoders.encode_base64, **_params): 22 """Create an image/* type MIME document. 23 24 _imagedata is a string containing the raw image data. If this data 25 can be decoded by the standard Python `imghdr' module, then the 26 subtype will be automatically included in the Content-Type header. 27 Otherwise, you can specify the specific image subtype via the _subtype 28 parameter. 29 30 _encoder is a function which will perform the actual encoding for 31 transport of the image data. It takes one argument, which is this 32 Image instance. It should use get_payload() and set_payload() to 33 change the payload to the encoded form. It should also add any 34 Content-Transfer-Encoding or other headers to the message as 35 necessary. The default encoding is Base64. 36 37 Any additional keyword arguments are passed to the base class 38 constructor, which turns them into parameters on the Content-Type 39 header. 40 """ 41 if _subtype is None: 42 _subtype = imghdr.what(None, _imagedata) 43 if _subtype is None: 44 raise TypeError('Could not guess image MIME subtype') 45 MIMENonMultipart.__init__(self, 'image', _subtype, **_params) 46 self.set_payload(_imagedata) 47 _encoder(self) 48
