将sent_tokenizer
用于德语文本时,我会遇到一些奇怪的行为。
示例代码:
sent_tokenizer = nltk.data.load('tokenizers/punkt/german.pickle')
for sent in sent_tokenizer.tokenize("Super Qualität. Tolles Teil.")
print sent
失败并显示错误:
Traceback (most recent call last):
for sent in sent_tokenize("Super Qualität. Tolles Teil."):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/__init__.py", line 82, in sent_tokenize
return tokenizer.tokenize(text)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1270, in tokenize
return list(self.sentences_from_text(text, realign_boundaries))
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1318, in sentences_from_text
return [text[s:e] for s, e in self.span_tokenize(text, realign_boundaries)]
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1309, in span_tokenize
return [(sl.start, sl.stop) for sl in slices]
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1348, in _realign_boundaries
for sl1, sl2 in _pair_iter(slices):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 354, in _pair_iter
prev = next(it)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1324, in _slices_from_text
if self.text_contains_sentbreak(context):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1369, in text_contains_sentbreak
for t in self._annotate_tokens(self._tokenize_words(text)):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 1504, in _annotate_second_pass
for t1, t2 in _pair_iter(tokens):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 354, in _pair_iter
prev = next(it)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 621, in _annotate_first_pass
for aug_tok in tokens:
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/nltk/tokenize/punkt.py", line 586, in _tokenize_words
for line in plaintext.split('\n'):
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 6: ordinal not in range(128)
,而:
sent_tokenizer = nltk.data.load('tokenizers/punkt/german.pickle')
for sent in sent_tokenizer.tokenize("Super Qualität des Produktes. Tolles Teil.")
print sent
完美运作
答案 0 :(得分:4)
我在nltk homepage找到了解决方案。
警告:在对Unicode字符串进行标记时,请确保未使用 字符串的编码版本(可能需要对其进行解码 首先,例如使用s.decode(" utf8")。
所以
text = "Super Qualität. Tolles Teil."
sent_tokenizer = nltk.data.load('tokenizers/punkt/german.pickle')
for sent in sent_tokenizer.tokenize(text.decode('utf8')):
print sent
就像一个魅力。