Tiago de Freitas Pereira
--- a/bob/learn/em/__init__.py
+++ b/bob/learn/em/__init__.py
+        return d
+
+    def __setstate__(self, d):
+        self.__dict__ = d
+        shape = self.gmm_shape_from_dict(d)
+        self.__init__(shape[0], shape[1])
+        self.update_dict(d)
+
+
+class ISVBase(_ISVBase_C):
+    __doc__ = _ISVBase_C.__doc__
+
+    @staticmethod
+    def to_dict(isv_base):
+        isv_data = dict()
+        isv_data["gmm"] = GMMMachine.to_dict(isv_base.ubm)