AttributeError: 'dict' object has no attribute 'startswith'

[schmir]

just got this traceback:

2013-06-02 13:16:50,797:pyelasticsearch:http://localhost:9200 marked as dead for
 300 seconds.
2013-06-02 13:16:50,799:requests.packages.urllib3.connectionpool:Starting new HT
TP connection (2): localhost
2013-06-02 13:18:59,933:bemo.index_control:total added 5702009 docs
(0.14 docs/sec 0.02 MByte/sec) Index Size: 14259.71 MB
Traceback (most recent call last):
  File "/home/ralf/bemo/bin/bemopy", line 47, in <module>
    exec(compile(__file__f.read(), __file__, "exec"))
  File "/home/ralf/cpidx.py", line 49, in <module>
    ic.index_documents(src, report_stats=index_control.make_report_stats())
  File "/home/ralf/bemo/bemo/index_control.py", line 140, in index_documents
    for doc in documents:
  File "/home/ralf/cpidx.py", line 27, in iterate_scroll
    result = conn.scroll(scroll_id=scroll_id, scroll="10m")
  File "/home/ralf/.buildout/cache/eggs/pyelasticsearch-0.5_brainbot_1_20130516-
py2.7.egg/pyelasticsearch/client.py", line 96, in decorate
    return func(*args, query_params=query_params, **kwargs)
  File "/home/ralf/.buildout/cache/eggs/pyelasticsearch-0.5_brainbot_1_20130516-
py2.7.egg/pyelasticsearch/client.py", line 622, in scroll
    query_params=query_params)
  File "/home/ralf/.buildout/cache/eggs/pyelasticsearch-0.5_brainbot_1_20130516-
py2.7.egg/pyelasticsearch/client.py", line 254, in send_request
    self._raise_exception(resp, prepped_response)
  File "/home/ralf/.buildout/cache/eggs/pyelasticsearch-0.5_brainbot_1_20130516-
py2.7.egg/pyelasticsearch/client.py", line 265, in _raise_exception
    elif error_message.startswith('IndexAlreadyExistsException'):
AttributeError: 'dict' object has no attribute 'startswith'