Fix lorenz_attractor example on Python 3

cgohlke · cgohlke · commit 89e5947f66c7 · 2012-06-28T11:41:56.000-07:00
diff --git a/examples/mplot3d/lorenz_attractor.py b/examples/mplot3d/lorenz_attractor.py
@@ -30,7 +30,7 @@ def lorenz(x, y, z, s=10, r=28, b=2.667) :
 xs[0], ys[0], zs[0] = (0., 1., 1.05)
 
 # Stepping through "time".
-for i in xrange(stepCnt) :
+for i in range(stepCnt) :
     # Derivatives of the X, Y, Z state
     x_dot, y_dot, z_dot = lorenz(xs[i], ys[i], zs[i])
     xs[i + 1] = xs[i] + (x_dot * dt)
