Matplotlib colorbar moves second x axis

Question

I\'m trying to add a second x axis to the top of a plot using twiny.

If I make a simple scatter plot with no colorbar, the top x axis is correctly aligned with the botto

Answer 1

This feels like kind of a hack. But by forcing the figure to draw. And then getting the ax1 position. you can set ax2 to the same and redraw the figure.

....
cbar.ax.tick_params(labelsize=10)

fig.canvas.draw()
ax2.set_position(ax1.get_position())

plt.show()