The Google Books Ngram Viewer dataset is a freely available resource under a Creative Commons Attribution 3.0 Unported License which provides ngram counts over books scanned by Google.
The data is so big, that storing it is almost impossible. However, sometimes you need an aggregate data over the dataset. For example to build a co-occurrence matrix.
This package provides an iterator over the dataset stored at Google. It decompresses the data on the fly and provides you the access to the underlying data.
>>> from google_ngram_downloader import readline_google_store
>>>
>>> fname, url, records = next(readline_google_store(ngram_len=5))
>>> fname
'googlebooks-eng-all-5gram-20120701-0.gz'
>>> url
'http://storage.googleapis.com/books/ngrams/books/googlebooks-eng-all-5gram-20120701-0.gz'
>>> next(records)
Record(ngram=u'0 " A most useful', year=1860, match_count=1, volume_count=1)pip install google-ngram-downloader
It also provides a simple command line tool to download the ngrams called google-ngram-downloader.