[Matplotlib-users] how to plot stepwise lines

[Zhang Le <zha...@gm...>]

Hello,
  I want to plot a stepwise line using
plot([1,2,3,4,5],[2,-2,2,-2,2]). But what I get is something like two
triangular like shape. But I want a stepwise shape that has steep
vertical jumps. How can I do that?
 Many thanks,
Zhang Le