Index: django/contrib/formtools/utils.py
===================================================================
--- django/contrib/formtools/utils.py	(revisión: 8597)
+++ django/contrib/formtools/utils.py	(copia de trabajo)
@@ -8,32 +8,31 @@
 from django.forms import BooleanField
 
 def security_hash(request, form, *args):
-        """
-        Calculates a security hash for the given Form instance.
+    """
+    Calculates a security hash for the given Form instance.
 
-        This creates a list of the form field names/values in a deterministic
-        order, pickles the result with the SECRET_KEY setting, then takes an md5
-        hash of that.
-        """
-        # Ensure that the hash does not change when a BooleanField's bound
-        # data is a string `False' or a boolean False.
-        # Rather than re-coding this special behaviour here, we
-        # create a dummy BooleanField and call its clean method to get a
-        # boolean True or False verdict that is consistent with
-        # BooleanField.clean()
-        dummy_bool = BooleanField(required=False)
-        def _cleaned_data(bf):
-            if isinstance(bf.field, BooleanField):
-                return dummy_bool.clean(bf.data)
-            return bf.data
-        
-        data = [(bf.name, _cleaned_data(bf) or '') for bf in form]
-        data.extend(args)
-        data.append(settings.SECRET_KEY)
-        
-        # Use HIGHEST_PROTOCOL because it's the most efficient. It requires
-        # Python 2.3, but Django requires 2.3 anyway, so that's OK.
-        pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
-        
-        return md5_constructor(pickled).hexdigest()
+    This creates a list of the form field names/values in a deterministic
+    order, pickles the result with the SECRET_KEY setting, then takes an md5
+    hash of that.
+    """
+    # Ensure that the hash does not change when a BooleanField's bound
+    # data is a string `False' or a boolean False.
+    # Rather than re-coding this special behaviour here, we
+    # create a dummy BooleanField and call its clean method to get a
+    # boolean True or False verdict that is consistent with
+    # BooleanField.clean()
+    dummy_bool = BooleanField(required=False)
+    def _cleaned_data(bf):
+        if isinstance(bf.field, BooleanField):
+            return dummy_bool.clean(bf.data)
+        return bf.data
 
+    data = [(bf.name, _cleaned_data(bf) or '') for bf in form]
+    data.extend(args)
+    data.append(settings.SECRET_KEY)
+
+    # Use HIGHEST_PROTOCOL because it's the most efficient. It requires
+    # Python 2.3, but Django requires 2.3 anyway, so that's OK.
+    pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
+
+    return md5_constructor(pickled).hexdigest()
\ Sin fin-de-línea al final del archivo