title: "bokeh serve --show myapp.py" returns invlaid syntax error
body: <p>I have read about bokeh and decided to give it a shot as I thought it would work well for my purposes. I am just trying to test currently, trying to just get an app to run. However, every time I try to run the simple app with <code>bokeh serve --show myapp.py</code> I receive a syntax error, "invalid syntax". I don't know if it matters, but I have tried running this from Spyder (Python 3.5) as well a from python.exe to no avail. I am on Windows 7 Enterprise. </p>
  
  <p>Here's the simple app:</p>
  
  <pre><code>from bokeh.models import widgets
  from bokeh.io import curdoc
  from bokeh.layouts import column, widgetbox
  
  tbox = widgets.inputs.TextInput()
  
  layout = column(widgetbox(tbox))
  
  curdoc().add_root(layout)
  </code></pre>
  
  <p>Why would I receive a syntax error from this statement?</p>