[Matplotlib-users] multiple overlaid contour plots

[Lado S. <co...@gm...>]

How can I plot multiple overlaid transparent contour plots in matplotlib?
The link below has a plot that shows I am trying to achieve.
https://docs.google.com/file/d/0B4HYv5Dbtu1Zb1VtOG9PTkJCeVU/edit?usp=sharing