title: plotly: how to make a standalone plot in a window?
body: <p>Is there any way to use plotly just like matplotlib, that is, making the plot appear in a pop up window? Eg, is there an simple equivalent of</p>
  
  <pre><code>plt.plot([1,2,3], [2, 3, 2.5])
  plt.show()
  </code></pre>
  
  <p>I've tried various functions, but all of them seem to either create an html file or an image file. </p>