Rename scratchpad class to Scratchpad

theano/gof/graph.py

@@ -92,7 +92,7 @@ class Apply(Node):
     def __init__(self, op, inputs, outputs):
         self.op = op
         self.inputs = []
-        self.tag = utils.scratchpad()
+        self.tag = utils.Scratchpad()
 
         if not isinstance(inputs, (list, tuple)):
             raise TypeError("The inputs of an Apply must be a list or tuple")
@@ -383,7 +383,8 @@ class Variable(Node):
     def __init__(self, type, owner=None, index=None, name=None):
         super(Variable, self).__init__()
 
-        self.tag = utils.scratchpad()
+        self.tag = utils.Scratchpad()
+
         self.type = type
         if owner is not None and not isinstance(owner, Apply):
             raise TypeError("owner must be an Apply instance", owner)

theano/gof/utils.py

@@ -239,7 +239,7 @@ class object2(with_metaclass(MetaObject, object)):
         return not self == other
 
 
-class scratchpad(object):
+class Scratchpad(object):
     def clear(self):
         self.__dict__.clear()
 

theano/misc/pkl_utils.py

@@ -68,7 +68,7 @@ class StripPickler(Pickler):
 
     def save(self, obj):
         # Remove the tag.trace attribute from Variable and Apply nodes
-        if isinstance(obj, theano.gof.utils.scratchpad):
+        if isinstance(obj, theano.gof.utils.Scratchpad):
             for tag in self.tag_to_remove:
                 if hasattr(obj, tag):
                     del obj.__dict__[tag]

theano/printing.py

@@ -371,11 +371,11 @@ class Print(Op):
         return (1,)
 
 
-class PrinterState(gof.utils.scratchpad):
+class PrinterState(gof.utils.Scratchpad):
     def __init__(self, props=None, **more_props):
         if props is None:
             props = {}
-        elif isinstance(props, gof.utils.scratchpad):
+        elif isinstance(props, gof.utils.Scratchpad):
             self.__update__(props)
         else:
             self.__dict__.update(props)