def _repr_html_(self):
        """Build the HTML representation for IPython."""
        vis_id = str(uuid4()).replace("-", "")
        html = """<div id="vis%s"></div>
<script>
   ( function() {
     var _do_plot = function() {
       if (typeof vg === 'undefined') {
         window.addEventListener('vincent_libs_loaded', _do_plot)
         return;
       }
       vg.parse.spec(%s, function(chart) {
         chart({el: "#vis%s"}).update();
       });
     };
     _do_plot();
   })();
</script>
<style>.vega canvas {width: 100%%;}</style>
        """ + (vis_id, self.to_json(pretty_print=False), vis_id)
        return html
dataset/ETHPy150Open wrobstory/vincent/vincent/visualization.py/Visualization._repr_html_/operator `%` -> `+`