Revert "remove printing in replace_all_validate"

theano/gof/toolbox.py

@@ -208,14 +208,20 @@ class Validator(Feature):
             uf = cf.f_back
             uf_info = inspect.getframeinfo(uf)
 
-            # Print if verbose, then raise
-            verbose = uf.f_locals.get('verbose', False)
-            if verbose:
-                r = uf.f_locals.get('r', "")
-                reason = uf_info.function
-                print("validate failed on node %s.\n Reason: %s, %s" %
-                      (r, reason, e))
-            raise
+            # If the caller is replace_all_validate, just raise the
+            # exception. replace_all_validate will print out the
+            # verbose output.
+            # Or it has to be done here before raise.
+            if uf_info.function == 'replace_all_validate':
+                raise
+            else:
+                verbose = uf.f_locals.get('verbose', False)
+                if verbose:
+                    r = uf.f_locals.get('r', "")
+                    reason = uf_info.function
+                    print("validate failed on node %s.\n Reason: %s, %s" %
+                          (r, reason, e))
+                raise
         t1 = time.time()
         if fgraph.profile:
             fgraph.profile.validate_time += t1 - t0
@@ -287,6 +293,8 @@ class ReplaceValidate(History, Validator):
             fgraph.validate()
         except Exception as e:
             fgraph.revert(chk)
+            if verbose:
+                print("validate failed on node %s.\n Reason: %s, %s" % (r, reason, e))
             raise
         if verbose:
             print(reason, r, new_r)