How to manually download a nltk corpus?

1. Go to http://www.nltk.org/nltk_data/ and download whichever data file you want
2. Now in a Python shell check the value of `nltk.data.path`
3. Choose one of the path that exists on your machine, and unzip the data files into the `corpora` subdirectory inside.
4. Now you can import the data `from nltk.corpus import stopwords`