Hi,

My plot_dates(x, y) call, while working in python 2.4, failed in python 2.4.4. x
here is dates array and y is a masked array returned by masked_values()from MA
module. After much debugging, I found that problem occurs at ma.asarray(y)
where y is the masked array with the following message:
     ***ValueError: object __array__ method not producing an array
Anyone knows which of my package (MA, numpy, ...) might be causing the conflict?
 I could go back to the older version (on another machine), but I really like it
to work in the newer version.  Any inputs would be appreciated.

Regards,
Jianfu Pan

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