Bill,

Unfortunately, I don't have a solution for you. I just wanted to chime in and 
say that I'm getting the same error. I'm on XP, py2.6, mpl0.99.3, np1.4.1, 
sp0.8.0b1. Basemap came from the latest Windows binary on Sourceforge. 
-paul

> -----Original Message-----
> From: Bill Eaton [mailto:e...@aeroantenna.com]
> Sent: Wednesday, June 23, 2010 8:24 AM
> To: matplotlib-users@lists.sourceforge.net
> Subject: [Matplotlib-users] basemap broken with matplotlib 0.99.3?
> 
> I stumbled across a basemap demo a couple of days ago and was immediately
> enchanted.
> 
> I can't get it to install nicely on a Windoze box with matplotlib 0.99.3.
> When I try the famous
>   from mpl_toolkits.basemap import Basemap
> directive, I get
>   In [1]: from mpl_toolkits.basemap import Basemap
> -------------------------------------------------------------------------
> --
> ValueError                                Traceback (most recent call
> last)
> 
> C:\Documents and Settings\Bill.DC1\<ipython console> in <module>()
> 
> C:\Python26\lib\site-packages\mpl_toolkits\basemap\__init__.py in
> <module>()
>      36 from matplotlib.lines import Line2D
>      37 from matplotlib.transforms import Bbox
> ---> 38 import pyproj, sys, os, math, dbflib
>      39 from proj import Proj
>      40 import numpy as np
> 
> C:\Python26\lib\site-packages\mpl_toolkits\basemap\pyproj.py in
> <module>()
>      46 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. """
>      47
> ---> 48 from _proj import Proj as _Proj
>      49 from _geod import Geod as _Geod
>      50 from _proj import _transform
> 
> C:\Documents and Settings\Bill.DC1\c_numpy.pxd in _proj
> (src/_proj.c:3234)()
> 
> ValueError: numpy.dtype does not appear to be the correct type object
> 
> I tried manually installing many of the prerequisites (which should be
> bundled) and also reinstalling MPL. But still no joy.
> 
> On my Linux box running 0.99.0, I was able to install basemap and run one
> of
> the example codes. Works quite nicely.
> 
> 
> 
> 
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