Some ability to specify empty space between subplots would be very
convenient. I'm not sure if this could best be done at figure creation or
at subplot creation with an additional argument that says how much space
to leave above or below.
The motivation is that creating subplots with separate titles is a very
common desire, and doing so now results in title text that invariably
overlaps the plot above (or if the font is reduced enough, it may fit but
looks squished in there).
Using manual axes creation is another approach that has been suggested,
but this is a pain and seems to obviate the convenience of subplot().
If there is a better approach than creating custom axes, I'd love to hear
Thanks to all the pylab developers!