Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/samples/wxPIA_book/Chapter-09/dir_box.py

@@ -0,0 +1,12 @@
+import wx
+
+if __name__ == "__main__":
+    app = wx.PySimpleApp()
+    dialog = wx.DirDialog(None, "Choose a directory:",
+          style=wx.DD_DEFAULT_STYLE | wx.DD_NEW_DIR_BUTTON)
+    if dialog.ShowModal() == wx.ID_OK:
+        print dialog.GetPath()
+    dialog.Destroy()
+
+
+