Merge pull request #146 from NMRbox/master

Only for Python 2

Author: adewes

docs/correctness/explicit_return_in_init.rst

@@ -53,7 +53,7 @@ There is no reason why the ``Rectangle`` class MUST return the area immediately
         def area(self):
             return self._area
 
-Note that the class must inherit from ``object`` now, since the ``property`` decorator only works for new style classes.
+Note that in Python 2 the class must inherit from ``object`` now, since the ``property`` decorator only works for new style classes.
 
 References
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