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"""Class representing image/* type MIME documents.""" |
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__all__ = ['MIMEImage'] |
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import imghdr |
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from email import encoders |
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from email.mime.nonmultipart import MIMENonMultipart |
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class MIMEImage(MIMENonMultipart): |
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"""Class for generating image/* type MIME documents.""" |
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def __init__(self, _imagedata, _subtype=None, |
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_encoder=encoders.encode_base64, *, policy=None, **_params): |
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"""Create an image/* type MIME document. |
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_imagedata contains the bytes for the raw image data. If the data |
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can be decoded by the standard Python `imghdr' module, then the |
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subtype will be automatically included in the Content-Type header. |
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Otherwise, you can specify the specific image subtype via the _subtype |
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parameter. |
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_encoder is a function which will perform the actual encoding for |
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transport of the image data. It takes one argument, which is this |
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Image instance. It should use get_payload() and set_payload() to |
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change the payload to the encoded form. It should also add any |
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Content-Transfer-Encoding or other headers to the message as |
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necessary. The default encoding is Base64. |
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Any additional keyword arguments are passed to the base class |
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constructor, which turns them into parameters on the Content-Type |
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header. |
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""" |
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if _subtype is None: |
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_subtype = imghdr.what(None, _imagedata) |
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if _subtype is None: |
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raise TypeError('Could not guess image MIME subtype') |
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MIMENonMultipart.__init__(self, 'image', _subtype, policy=policy, |
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**_params) |
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self.set_payload(_imagedata) |
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_encoder(self) |
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