TypeError: 'bool' object has no attribute '__getitem__'

[xiaochuanjiejie]

Traceback (most recent call last):
File "/usr/lib64/python2.7/site-packages/tornado/web.py", line 1592, in _execute
result = yield result
File "/usr/lib64/python2.7/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/usr/lib64/python2.7/site-packages/tornado/concurrent.py", line 261, in result
raise_exc_info(self._exc_info)
File "/usr/lib64/python2.7/site-packages/tornado/gen.py", line 1147, in run
yielded = self.gen.send(value)
File "zookeeper_monitor/handlers.py", line 90, in get
self.render('{}.html'.format(self.ACTION), data=res)
File "/usr/lib64/python2.7/site-packages/tornado/web.py", line 766, in render
html = self.render_string(template_name, **kwargs)
File "/usr/lib64/python2.7/site-packages/tornado/web.py", line 907, in render_string
return t.generate(**namespace)
File "/usr/lib64/python2.7/site-packages/tornado/template.py", line 346, in generate
return execute()
File "host_html.generated.py", line 78, in _tt_execute
_tt_tmp = data['stat']['head'] # host.html:21 (via layout.html:12)
TypeError: 'bool' object has no attribute 'getitem'

Has anyone ever encountered this problem？？

Python Version：Python 2.7.5