fixes #0004000: Ability to suppress console output when running under python

src/App/Application.cpp

@@ -1536,8 +1536,10 @@ void Application::initConfig(int argc, char ** argv)
 
     // Init console ===========================================================
     Base::PyGILStateLocker lock;
-    _pConsoleObserverStd = new ConsoleObserverStd();
-    Console().AttachObserver(_pConsoleObserverStd);
+    if (mConfig["LoggingConsole"] == "1") {
+        _pConsoleObserverStd = new ConsoleObserverStd();
+        Console().AttachObserver(_pConsoleObserverStd);
+    }
     if (mConfig["Verbose"] == "Strict")
         Console().UnsetConsoleMode(ConsoleSingleton::Verbose);
 

src/Main/MainCmd.cpp

@@ -82,6 +82,7 @@ int main( int argc, char ** argv )
         // Init phase ===========================================================
         // sets the default run mode for FC, starts with command prompt if not overridden in InitConfig...
         App::Application::Config()["RunMode"] = "Exit";
+        App::Application::Config()["LoggingConsole"] = "1";
 
         // Inits the Application
         App::Application::init(argc,argv);

src/Main/MainGui.cpp

@@ -187,6 +187,7 @@ int main( int argc, char ** argv )
         // sets the default run mode for FC, starts with gui if not overridden in InitConfig...
         App::Application::Config()["RunMode"] = "Gui";
         App::Application::Config()["Console"] = "0";
+        App::Application::Config()["LoggingConsole"] = "1";
 
         // Inits the Application 
 #if defined (FC_OS_WIN32)

src/Main/MainPy.cpp

@@ -42,10 +42,12 @@
 
 #include <stdio.h>
 #include <sstream>
+#include <iostream>
 
 
 // FreeCAD Base header
 #include <Base/Exception.h>
+#include <Base/Sequencer.h>
 #include <App/Application.h>
 
 
@@ -228,6 +230,15 @@ PyMOD_INIT_FUNC(FreeCAD)
     free(argv[0]);
     free(argv);
 
+    Base::EmptySequencer* seq = new Base::EmptySequencer();
+    (void)seq;
+    static Base::RedirectStdOutput stdcout;
+    static Base::RedirectStdLog    stdclog;
+    static Base::RedirectStdError  stdcerr;
+    std::cout.rdbuf(&stdcout);
+    std::clog.rdbuf(&stdclog);
+    std::cerr.rdbuf(&stdcerr);
+
 #if PY_MAJOR_VERSION >= 3
     //PyObject* module = _PyImport_FindBuiltin("FreeCAD");
     PyObject* modules = PyImport_GetModuleDict();