Now can get and set name in Dataset. Also added getter for dim_names.

system/dataset.py

@@ -10,7 +10,8 @@ class Dataset:
     A Dataset is an n-way array with defined string identifiers across
     all dimensions.
     """
-    def __init__(self,input_array,def_list):
+    def __init__(self, input_array, def_list, name="Unnamed data"):
+        self._name = name
         self._data = asarray(input_array)
         dims = shape(self._data)
         self.def_list = def_list
@@ -43,9 +44,11 @@ class Dataset:
             if len(df)!=d and df:
                 raise ValueError,"dim size and identifyer mismatch"
             
-    def __str__(self):
-        self.name = 'Arnar'
-        return self.name
+    def get_name(self):
+        return self._name
+
+    def get_dim_names(self):
+        return self._dim_names
     
     def names(self,axis=0):
         """Returns identifier names of a dimension.