Rotation of colorbar tick labels in matplotlib

Question

I would like to rotate the colorbar tick labels so that they read vertically rather than horizontally. I have tried as many variations as I can think of with cbar.ax.s

Answer 1

If you're happy with tick locations and labels and only want to rotate them:

cbar.ax.set_xticklabels(cbar.ax.get_xticklabels(), rotation='vertical')