Fixed small mistakes in code.

theano/gof/op.py

@@ -587,7 +587,7 @@ class Op(utils.object2, PureOp, CLinkerOp):
     def __str__(self):
         if hasattr(self, '__props__'):
             if len(self.__props__) == 0:
-                return "%s" % (self.__class__.__name__, ", ".join("%s=%r"))
+                return "%s" % (self.__class__.__name__,)
             else:
                 return "%s{%s}" % (self.__class__.__name__, ", ".join("%s=%r" % (p, getattr(self, p)) for p in self.__props__))
         else:

theano/sandbox/linalg/ops.py

@@ -71,7 +71,7 @@ class Hint(Op):
 
     """
 
-    __props__ = ('hints', 'view_map')
+    __props__ = ('hints',)
 
     def __init__(self, **kwargs):
         self.hints = tuple(kwargs.items())

theano/tensor/nlinalg.py

@@ -31,6 +31,9 @@ class MatrixPinv(Op):
     exact and faster to compute. Also this op does not get optimized into a
     solve op.
     """
+
+    __props__ = ()
+
     def __init__(self):
         pass
 
@@ -56,6 +59,8 @@ class MatrixInverse(Op):
            of ``solve``.
     """
 
+    __props__ = ()
+
     def __init__(self):
         pass
 
@@ -281,6 +286,7 @@ class Eig(Op):
 
     """
     _numop = staticmethod(numpy.linalg.eig)
+    __props__ = ()
 
     def make_node(self, x):
         x = as_tensor_variable(x)