scatter and translucency

Hello, I'm using scatter to plot markers that I would like

    > to be transparent, so I use the keyword alpha = 0.2 to set
    > transparency at 20%. But the markers are not transparent. I
    > was informed by this list prior that there is a bug with
    > using plot() and the transparency does not work. Is this the
    > same bug for scatter as well?

alpha on scatter works for me, eg examples/ Not all
backends support transparency (PS, GTK, WX) but for those that do
(GTKAgg, TkAgg, WXAgg, etc, SVG) it should work fine.