下载运行textblob包后可能会出现这样的提示：
textblob.exceptions.MissingCorpusError:
Looks like you are missing some required data for this feature.
To download the necessary data, simply run
python -m textblob.download_corpora
or use the NLTK downloader to download the missing data: http://nltk.org/data.html
If this doesn’t fix the problem, file an issue at https://github.com/sloria/TextBlob/issues.
做法如下：
python -m textblob.download_corpora
参考链接：https://github.com/sloria/TextBlob/issues/160
还可能有这样的提示
Resource punkt not found.
Please use the NLTK Downloader to obtain the resource:
做法如下
import nltk
nltk.download('punkt')
参考链接：https://stackoverflow.com/questions/4867197/failed-loading-english-pickle-with-nltk-data-load