why property doc function doesn't display the help information when it is called through help(instance.attribute)
<pre><code>class MyClass(object):
    def __init__(self):
        self._my_secret_thing = 1

    def _i_get(self):
        return self._my_secret_thing

    def _i_set(self, value):
        self._my_secret_thing = value

    def _i_delete(self):
        del self._my_secret_thing

    my_thing = property(_i_get, _i_set, _i_delete,'this document for my_thing')

instance_of = MyClass()

help(instance_of.my_thing) # not display the 'this document for my_thing'
help(instance_of)          # display the 'this document for my_thing'
</code></pre>

<p><strong>Question</strong>> Why the help message for <code>my_thing</code> doesn't show up if it is called through <code>help(instance_of.mything)</code>?</p>

<p>Reference <a href="http://docs.python.org/library/functions.html#property" rel="nofollow">python.property</a></p>
