WordNet Error

[gyang]

Called up nltk.app.wordnet() and got this after I clicked on S to map out a word

Exception happened during processing of request from ('127.0.0.1', 3795)
Traceback (most recent call last):
  File "C:\Users\***\Anaconda3\lib\socketserver.py", line 317, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Users\***\Anaconda3\lib\socketserver.py", line 348, in process_request
    self.finish_request(request, client_address)
  File "C:\Users\***\Anaconda3\lib\socketserver.py", line 361, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\Users\***\Anaconda3\lib\socketserver.py", line 696, in __init__
    self.handle()
  File "C:\Users\***\Anaconda3\lib\http\server.py", line 418, in handle
    self.handle_one_request()
  File "C:\Users\***\Anaconda3\lib\http\server.py", line 406, in handle_one_request
    method()
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 147, in do_GET
    page, word = page_from_href(sp)
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 722, in page_from_href
    return page_from_reference(Reference.decode(href))
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 760, in page_from_reference
    body += _collect_all_synsets(w, pos, href.synset_relations)
  File "C:\Users\gspirit\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 574, in _collect_all_synsets
    in wn.synsets(word, pos)))
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 573, in <genexpr>
    for synset
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 564, in _collect_one_synset
    return s + gl + _synset_relations(word, synset, synset_relations) + '</li>\n'
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 623, in _synset_relations
    if rel_data[2] != [])) + \
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 397, in get_relations_data
    lemma_property(word, synset, lambda l: l.antonyms())),
  File "C:\Users\***\Anaconda3\lib\site-packages\nltk\app\wordnet_app.py", line 355, in lemma_property
    return flattern([func(l) for l in synset.lemmas if l.name == word])
TypeError: 'method' object is not iterable

anyone knows whats wrong?

Thanks