I just upgrade matplotlib from 0.83.2 to 0.87 under WinXP, Python 2.3.5,
Numeric 23.8. I find out that all my plots using contour function do not
work anymore. I also tried the examples: contour_demo.py,
contourf_demo.py and contour_image.py. All of them do not work with the
following error message:
File "contour_demo.py", line 26, in ?
levels, colls = contour(X, Y, Z)
TypeError: unpack non-sequence
Anyone has any clue in fixing this problem?