python2 doctests

Author: Jonathan Kliem

src/sage/geometry/polyhedron/base.py

@@ -156,11 +156,16 @@ def __init__(self, parent, Vrep, Hrep, Vrep_minimal=None, Hrep_minimal=None, pre
 
         If the backend supports precomputed data, ``pref_rep`` is ignored::
 
-            sage: p = Polyhedron_field(parent, Vrep, 'nonsense',
+            sage: p = Polyhedron_field(parent, Vrep, 'nonsense',  # py3
             ....:                      Vrep_minimal=True, Hrep_minimal=True, pref_rep='Vrep')
             Traceback (most recent call last):
             ...
             TypeError: _init_Hrepresentation() takes 3 positional arguments but 9 were given
+            sage: p = Polyhedron_field(parent, Vrep, 'nonsense',  # py2
+            ....:                      Vrep_minimal=True, Hrep_minimal=True, pref_rep='Vrep')
+            Traceback (most recent call last):
+            ...
+            TypeError: _init_Hrepresentation() takes exactly 3 arguments (9 given)
         """
         Element.__init__(self, parent=parent)
         if Vrep is not None and Hrep is not None: