demo tweaks

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16140 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/PyCrustWithFilling.py

@@ -21,3 +21,8 @@ def runTest(frame, nb, log):
 
 overview = filling.__doc__
 
+if __name__ == '__main__':
+    import sys,os
+    import run
+    run.main(['', os.path.basename(sys.argv[0])])
+