Add copy ctor for wxPyCBInputStream and use it to prevent double

deletion of the wxInputStream passed to wxFSFile


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32589 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/include/wx/wxPython/pyistream.h

@@ -74,6 +74,8 @@ public:
     // factory function
     static wxPyCBInputStream* create(PyObject *py, bool block=true);
 
+    wxPyCBInputStream(const wxPyCBInputStream& other);
+    
 protected:
     // can only be created via the factory
     wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block);