Import of cherrypy.lib.cpstats fails

[cachedout]

Using CherryPy 4.0.0 downloaded from PyPi:

>>> from cherrypy.lib import cpstats
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/cpstats.py", line 438, in <module>
    class StatsPage(object):
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/cpstats.py", line 478, in StatsPage
    @cherrypy.exposed
AttributeError: 'module' object has no attribute 'exposed'
>>>