How to save a bokeh gridplot as single file
First you save your grid in an object, 
Let's say "a" the you confirms that "a" is a grid. Example
grid = bly.gridplot(graficas,ncols=3) # Here you save your grid
bpl.show(grid). # Here you show your grid
from bokeh.io import export_png # You need this library to export
Exportar grid
export_png(grid, filename="your path/name.png")
I am using bokeh (0.8.1) in combination with the ipython notebook to generate GridPlots. I would like to automatically store the generated GridPlots to a single png (hopefully pdf one day) on disk, but when using "Preview/Save" it cycles through all of the figures asking me to store them separately. Is there a more efficient way?