Animated Arrows

Dear colleagues,
Is there a artist function or routine
available in matplotlib for drawing animated arrows following lines (like
streamplot) in a 2D space, or even better in a 3D space?
Thanks in advance for any hint, or sample
code.
Regards,
Claude

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**
Claude Falbriard
Certified IT Specialist L2 - Middleware
AMS Hortolândia / SP - Brazil
phone: +55 13 9 9760 0453
cell: +55 13 9 8117 3316
e-mail: claudef@…3779…**