Yesterday, I installed SciPy-0.2.0_alpha_144.4350_src.tar.gz wxPython 2.3.3.1 for Python 2.2 wxWindows 2.2.9 Numeric 22.0 I've had Python 2.2.1 from www.python.org installed for several weeks. On a Windows NT 4.0 SP6a machine. I spent some time getting used to SciPy as I have some prior experience with each of the other packages. At the moment, I'm interested in plt.plot(). While I've been able to get a few simple 2-D plots to work, I'm having a proble with the following code residing in the file test2.py: import gui_thread from Numeric import * from scipy import plt from scipy import * binz = array([-162., -126., -90., -54., -18., 18., 54., 90., 126., 162.],Float) countz = array([ 9006, 1621, 26248, 2912, 7096, 8537, 1533, 22517, 1224, 6563],Float) plt.plot(binz,countz) When I execute this script, I get the following results: $ python test2.py <wxPython imported>

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Traceback (most recent call last): File "D:\Utils\Python22\Lib\site-packages\scipy\plt\wxplt.py", line 143, in on_paint self.draw(wx.wxPaintDC(self)) File "D:\Utils\Python22\Lib\site-packages\scipy\plt\wxplt.py", line 411, in draw t1 = time.clock();self.reset_size(dc);t2 = time.clock() File "D:\Utils\Python22\Lib\site-packages\scipy\plt\wxplt.py", line 357, in reset_size new_size = self.GetClientSizeTuple() File "d:\Utils\Python22\lib\site-packages\wxPython\windows.py", line 194, in GetClientSizeTuple val = apply(windowsc.wxWindow_GetClientSizeTuple,(self,) + _args, _kwargs) AttributeError: 'NoneType' object has no attribute 'wxWindow_GetClientSizeTuple' 17:52:44: Debug: c:\projects\wx\src\msw\app.cpp(439): 'UnregisterClass(canvas)' failed with error 0x00000584 (class still has open windows.). Exception exceptions.TypeError: "'NoneType' object is not callable" in <bound method wxPaintDC.__del__ of <C wxPaintDC instance at _274db50_wxPaintDC_p>> ignored

Can anyone tell me what I'm doing wrong? Regards, David Humphrey Director, Technical Services Bell Geospace, Inc