I try:
points = [...]
axe.plot([i[0] for i in points], [i[1] for i in points], linestyle=\'-\', linewidth=10,
color=\'black\', markeredgewidth=2, markeredge
The more general answer is to use patheffects. Easy outlines and shadows (and other things) for any artist rendered with a path.
The matplotlib docs (and examples) are quite accessible.
http://matplotlib.org/users/patheffects_guide.html
http://matplotlib.org/examples/pylab_examples/patheffect_demo.html