cubicweb-pyramid #4553204 AttributeError: 'unicode' object has no attribute 'strftime' [open]

Took my instance for a ride with a wget --mirror and found this

2014-11-03 17:54:07 - (pyramid_debugtoolbar) ERROR: Exception at http://ursa:8080  /Project?rql=Any%20X%2CAA%2CAB%2CAC%2CAD%2CAE%2CAF%2CAG%20ORDERBY%20AA%20WHERE%20X%20is_instance_of%20Project    %2C%20X%20name%20AA%2C%20X%20description%20AB%2C%20X%20description_format%20AC%2C%20X%20summary%20AD  %2C%20X%20modification_date%20AE%2C%20X%20homepage%20AF%2C%20X%20summary%20AG&vid=activitystream&fname=view
traceback url: http://ursa:8080/_debug_toolbar/exception?token=7debf387607f77843755&tb=140256230616336
Traceback (most recent call last):
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/pyramid_debugtoolbar-2.2-py2.7.egg/pyramid_debugtoolbar/toolbar.py", line 177, in toolbar_tween
  response = _handler(request)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/pyramid_debugtoolbar-2.2-py2.7.egg/pyramid_debugtoolbar/panels/performance.py", line 57, in resource_timer_handler
  result = handler(request)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/pyramid/tweens.py", line 21, in excview_tween
  response = handler(request)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/pyramid_cubicweb/bwcompat.py", line 122, in __call__
  response = self.cwhandler(request)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/pyramid_cubicweb/bwcompat.py", line 61, in __call__
  content = controller.publish(rset=rset)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/web/views/basecontrollers.py", line 136, in publish
  rset=rset, view=view)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/cwvreg.py", line 388, in main_template
  res = obj.render(**kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 137, in render
  view_func(**context)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/web/views/basetemplates.py", line 163, in call
  view.render(w=w)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 137, in render
  view_func(**context)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 348, in call
  super(EntityView, self).call(**kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 187, in call
  self.cell_call(row=0, **kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/share/cubicweb/cubes/activitystream/views.py", line 15, in cell_call
  self.wview('activitystream_item', rset, 'null')
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 243, in wview
  self._cw.view(__vid, rset, __fallback_vid, w=self.w, **kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/req.py", line 414, in view
  return view.render(w=w, **kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 137, in render
  view_func(**context)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 348, in call
  super(EntityView, self).call(**kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/view.py", line 187, in call
  self.cell_call(row=0, **kwargs)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/share/cubicweb/cubes/activitystream/views.py", line 33, in cell_call
  self._cw.format_date(activity.date, time=True)))
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/cubicweb/req.py", line 438, in format_date
  return ustrftime(date, date_format)
File "/home/arthur/.virtualenvs/cubicweb-pyramid/local/lib/python2.7/site-packages/logilab/common/date.py", line 292, in ustrftime
  return unicode(somedate.strftime(str(fmt)), encoding)
AttributeError: 'unicode' object has no attribute 'strftime'
prioritynormal
typebug
done in<not specified>
closed by<not specified>