[Matplotlib-users] RuntimeError: Buffer lengths not the same

[Jim V. <Jim...@no...>]

Hello everyone,

I do not understand why the attached script fails one of my assertion 
checks.  I do not seem to understand pylab.meshgrid and numpy arrays.

I looked at contour_demo.py in the basemap examples, but I have somehow 
missed my mistake.

Could someone elaborate.

Thanks,
-- jv

P.S.
FWIW, my system is:
Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit 
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
 >>> import matplotlib
 >>> matplotlib.__version__
'0.91.2'
 >>>