Only initialize wxWidgets once

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28928 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/helpers.cpp

@@ -378,15 +378,19 @@ void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) {
 // that should be present in the derived (Python) class.
 void wxPyApp::_BootstrapApp()
 {
-    bool        result;
+    static      bool haveInitialized = false;
+    bool        result, blocked;
     PyObject*   retval = NULL;
     PyObject*   pyint  = NULL;
 
     
+    // Only initialize wxWidgets once
+    if (! haveInitialized) {
+        
         // Get any command-line args passed to this program from the sys module
         int    argc = 0;
         char** argv = NULL;
-    bool blocked = wxPyBeginBlockThreads();
+        blocked = wxPyBeginBlockThreads();
         PyObject* sysargv = PySys_GetObject("argv");
         if (sysargv != NULL) {
             argc = PyList_Size(sysargv);
@@ -426,10 +430,15 @@ void wxPyApp::_BootstrapApp()
         // SWIG generated proxies, so re-init those now...
         wxPy_ReinitStockObjects(3);
 
+        wxPyEndBlockThreads(blocked);
+        haveInitialized = true;
+    }
+    
     // It's now ok to generate exceptions for assertion errors.
     wxPythonApp->SetStartupComplete(True);
 
     // Call the Python wxApp's OnInit function
+    blocked = wxPyBeginBlockThreads();
     if (wxPyCBH_findCallback(m_myInst, "OnInit")) {
 
         PyObject* method = m_myInst.GetLastFound();