'Renders the image using pydot'

def render_output_pydot(self, dotdata, **kwargs):

    if (not HAS_PYDOT):
        raise CommandError('You    need    to    install    pydot    python    module')
    graph = pydot.graph_from_dot_data(dotdata)
    if (not graph):
        raise CommandError('pydot    returned    an    error')
    if isinstance(graph, (list, tuple)):
        if (len(graph) > 1):
            sys.stderr.write('Found    more    then    one    graph,    rendering    only    the    first    one.\n')
        graph = graph[0]
    output_file = kwargs['outputfile']
    formats = ['bmp', 'canon', 'cmap', 'cmapx', 'cmapx_np', 'dot', 'dia', 'emf', 'em', 'fplus', 'eps', 'fig', 'gd', 'gd2', 'gif', 'gv', 'imap', 'imap_np', 'ismap', 'jpe', 'jpeg', 'jpg', 'metafile', 'pdf', 'pic', 'plain', 'plain-ext', 'png', 'pov', 'ps', 'ps2', 'svg', 'svgz', 'tif', 'tiff', 'tk', 'vml', 'vmlz', 'vrml', 'wbmp', 'xdot']
    ext = output_file[(output_file.rfind('.') + 1):]
    format = (ext if (ext in formats) else 'raw')
    graph.write(output_file, format=format)
