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The *Drawing* object is the overall container for all SVG
elements. It provides the methods to store the drawing into a file or a
file-like object. If you want to use stylesheets, the reference links
to this stylesheets were also stored (`add_stylesheet`)
in the *Drawing* object.

set/get SVG attributes::

    element['attribute'] = value
    value = element['attribute']

The Drawing object also includes a defs section, add elements to the defs
section by::

    drawing.defs.add(element)

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 This is the SVG drawing represented by the top level *svg* element.

    A drawing consists of any number of SVG elements contained within the drawing
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    to a very simple drawing containing a single SVG element such as a *rect*,
    to a complex, deeply nested collection of container elements and graphics elements.
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        :param string filename: filesystem filename valid for :func:`open`
        :param 2-tuple size: width, height
        :param keywords extra: additional svg-attributes for the *SVG* object

        Important (and not SVG Attributes) **extra** parameters:

        :param string profile: ``'tiny | full'`` - define the SVG baseProfile
        :param bool debug: switch validation on/off

        tsizeN(tsuperRt__init__tfilenamet_stylesheets(tselfRRtextra((sA/opt/alt/python27/lib/python2.7/site-packages/svgwrite/drawing.pyR*s
	
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 Add a stylesheet reference.

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        :param string media: ``'all | aureal | braille | embossed | handheld | print | projection | screen | tty | tv'``

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