Method overflow

interfaces/Python/cpp_classes/PythonStreamBuffer.cpp:17–22

   }

   int PythonStreamBuffer::overflow(int c) {
      if (c != EOF) {
         this->write_function(std::string(1, static_cast<char>(c)));
      }
      return c;
   }

   int PythonStreamBuffer::sync() {
      this->flush_function();