Answering my own question... It's a question of order. I needed to
set_yscale('log') before calling clabel.
I've run into a problem with a contour plot that has a
y-axis. The spacing around the inline contour label is too
leading to a large segment of the contour being blocked
tried making the plot with a linear axis and it didn't happen
case, so I'm thinking that it has to do with the contour
routine not understanding logarithmic scaling. Attached is a
demonstrating the problem. Is there a solution for this?