formatting in op contract

doc/tutorials/advanced/ex1/op.txt

@@ -63,10 +63,10 @@ An Op is any object which defines the following methods:
 - **__eq__(self, other)**
 
   - Returning True here is a promise to the optimization system that the other
-      Op will produce exactly the same graph effects (from perform) as this one, given
-      identical inputs.  This means it will produce the same output values, it
-      will destroy the same inputs (same destroy_map), and will alias outputs to
-      the same inputs (same view_map).
+    Op will produce exactly the same graph effects (from perform) as this one,
+    given identical inputs.  This means it will produce the same output values,
+    it will destroy the same inputs (same destroy_map), and will alias outputs
+    to the same inputs (same view_map).
 
 - **__hash__(self)**
 

theano/gof/op.py

@@ -159,6 +159,9 @@ class PureOp(object):
 
     To see how `Op`, `Type`, `Result`, and `Apply` fit together see the page on :doc:`graph`.
 
+    For more specifications on how these methods should behave: see the `Op Contract` in the
+    sphinx docs (advanced tutorial on Op-making).
+
     """
 
     default_output = None