first draft of enhancers.

bonobo/util/helpers.py

@@ -1,3 +1,7 @@
+from bonobo.util.compat import deprecated
+
+
+@deprecated
 def console_run(*chain, output=True, plugins=None, strategy=None):
     from bonobo import run
     from bonobo.ext.console import ConsoleOutputPlugin
@@ -5,6 +9,7 @@ def console_run(*chain, output=True, plugins=None, strategy=None):
     return run(*chain, plugins=(plugins or []) + [ConsoleOutputPlugin()] if output else [], strategy=strategy)
 
 
+@deprecated
 def jupyter_run(*chain, plugins=None, strategy=None):
     from bonobo import run
     from bonobo.ext.jupyter import JupyterOutputPlugin

bonobo/util/objects.py

@@ -199,3 +199,12 @@ class ValueHolder:
 
     def __invert__(self):
         return ~self.value
+
+
+def get_attribute_or_create(obj, attr, default):
+    try:
+        return getattr(obj, attr)
+    except AttributeError:
+        setattr(obj, attr, default)
+        return getattr(obj, attr)
+