Unicode problem with pyyaml 3.05

I have pyyaml 3.05. When I try to dump a unicode string obtained from 
BeautifulSoup, I get the following errors.

Why can I not dump these unicode strings?

Thanks,
    Joseph

Traceback (most recent call last):
   File "./extract-data.py", line 34, in <module>
     print yaml.dump(data)
   File "/usr/lib64/python2.5/site-packages/yaml/__init__.py", line 177, 
in dump
     return dump_all([data], stream, Dumper=Dumper, **kwds)
   File "/usr/lib64/python2.5/site-packages/yaml/__init__.py", line 167, 
in dump_all
     dumper.represent(data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
33, in represent
     node = self.represent_data(data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
62, in represent_data
     node = self.yaml_representers[data_types[0]](self, data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
228, in represent_dict
     return self.represent_mapping(u'tag:yaml.org,2002:map', data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
128, in represent_mapping
     node_value = self.represent_data(item_value)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
66, in represent_data
     node = self.yaml_multi_representers[data_type](self, data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
451, in represent_object
     return self.represent_mapping(tag+function_name, value)
....
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
62, in represent_data
     node = self.yaml_representers[data_types[0]](self, data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
320, in represent_unicode
     return self.represent_scalar(tag, data)
   File "/usr/lib64/python2.5/site-packages/yaml/representer.py", line 
94, in represent_scalar
     node = ScalarNode(tag, value, style=style)
RuntimeError: maximum recursion depth exceeded while calling a Python object


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