Fix sample so it works correctly when NUmeric is not installed.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@23913 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/FloatCanvas.py

@@ -1,8 +1,30 @@
-#!/usr/bin/env python2.2
+
+from wxPython.wx  import *
+
 
 ## Stuff to integrate FloatCanvas into wxPython Demo
 try:
     import Numeric
+    haveNumeric = True
+except ImportError:
+    haveNumeric = False
+
+
+if not haveNumeric:
+    errorText = """\
+The FloatCanvas requires the Numeric module:
+You can get it at:
+     http://sourceforge.net/projects/numpy
+"""     
+    def runTest(frame, nb, log):
+        dlg = wxMessageDialog(frame, errorText, 
+                              'Sorry', wxOK | wxICON_INFORMATION)
+        dlg.ShowModal()
+        dlg.Destroy()
+
+    overview = ""
+
+else:
     def runTest(frame, nb, log):
         """
         This method is used by the wxPython Demo Framework for integrating
@@ -11,17 +33,10 @@ try:
         win = DrawFrame(NULL, -1, "FloatCanvas Drawing Window",wxDefaultPosition,wxSize(500,500))
         frame.otherWin = win
         win.Show(True)
-except ImportError:
+
-    def runTest(frame, nb, log):
+
-        dlg = wxMessageDialog(frame, ('The FloatCanvas requires the Numeric module:\n'
-                                      'You can get it at:\n'
-                                      'http://sourceforge.net/projects/numpy'),
-                          'Sorry', wxOK | wxICON_INFORMATION)
-        dlg.ShowModal()
-        dlg.Destroy()
 
     from wxPython.lib import floatcanvas
-from wxPython.wx  import *
     import wxPython.lib.colourdb
     
     ID_ABOUT_MENU = wxNewId()          
@@ -416,8 +431,12 @@ def Read_MapGen(filename,stats = 0,AllLines=0):
     overview = floatcanvas.FloatCanvas.__doc__
       
 if __name__ == "__main__":
+    if not haveNumeric:
+        print errorText
+    else:
         app = DemoApp(0)
         app.MainLoop()
     
     
     
+