Name 'NewAxis' is not defined

[mo]

I found such a script - a gas model.
http://des.memphis.edu/lurbano/vpython/gas/Temp_KE_07.py
Can anybody help and find a mistake. There is a message:
Name 'NewAxis' is not defined.
I tried Python 25 with numpy 121 and Python 26 with scipy 071.
(Win Vista).
--
mo (not proffessional programmer ;)
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