ipython：无法导入名称下载

Question

我安装了完整的模式包：

• pip install pattern

当我想使用download时，我收到以下消息：

ImportError    Traceback (most recent call last)
<ipython-input-1-83512f2723dc> in <module>()
      6 
      7 from pattern.web import PDF
----> 8 from pattern.web import download, plaintext
      9 from textblob_de import TextBlobDE as TextBlob
     10 

ImportError: cannot import name download