Upper/lower limits on log scale

Hello list,

I want to create a plot where some points are upper limits (done with the uplims=True kwarg). In these cases, however I do not want the downward arrow to be of variable length, I simply just want a symbol that always looks the same. This I can, of course, just do by setting the desired length in the errors array, but this breaks down when I use a logscale for the plot. Isn't there a way to simply get an upperlim/lowerlim- symbol of constant length, regardless of axis scale and such?