尝试加载punkt令牌化程序时...
import nltk.data
tokenizer = nltk.data.load('nltk:tokenizers/punkt/english.pickle')
...... a LookupError被提出:
> LookupError:
> *********************************************************************
> Resource 'tokenizers/punkt/english.pickle' not found. Please use the NLTK Downloader to obtain the resource: nltk.download(). Searched in:
> - 'C:\\Users\\Martinos/nltk_data'
> - 'C:\\nltk_data'
> - 'D:\\nltk_data'
> - 'E:\\nltk_data'
> - 'E:\\Python26\\nltk_data'
> - 'E:\\Python26\\lib\\nltk_data'
> - 'C:\\Users\\Martinos\\AppData\\Roaming\\nltk_data'
> **********************************************************************