Add the test for __main__ to all that didn't have it, so all demo

samples can be run standalone


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@20957 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/PythonEvents.py

@@ -83,3 +83,10 @@ This demo is a contrived example of defining an event class in wxPython and send
 
 
 
+
+
+if __name__ == '__main__':
+    import sys,os
+    import run
+    run.main(['', os.path.basename(sys.argv[0])])
+