title: python website language detection
body: <p>i am writing a Bot that can just check thousands of website either they are in English or not.</p>
  
  <p>i am using Scrapy (python 2.7 framework) for crawling each website first page ,</p>
  
  <p>can some one suggest me which is the best way to check website language ,</p>
  
  <p>any help would be appreciated.</p>