Fragment below will write into the svg

plt.hexbin(x,y, cmap=plt.cm.YlOrRd_r,gid="element")plt.savefig("img.svg")

which is as we could expect, but

plt.hexbin(x,y, cmap=plt.cm.YlOrRd_r,gid="element",rasterized=True)plt.savefig("img.svg")

results in <image tag with different id (something like)

(i am submitting new issue as tcaswell@stackoverflow suggested