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Library to create and interogate local cache for Project Gutenberg

Project description

*********
GutenbergPy
*********


Overview
========

This package makes filtering and getting information from `Project
Gutenberg <http://www.gutenberg.org>`_ easier from python.

It's target audience is machine learning guys that need data for their project,
but may be freely used by anybody.

The package:

- Generates a local cache (of all gutenberg informations) that you can interogate to get book ids

- Downloads and cleans raw text from gutenberg books


The package has been tested with Python 2.7 on both Windows and Linux
It is faster, smaller and less third-party intensive alternative to https://github.com/c-w/Gutenberg

Installation
============


.. sourcecode :: sh

pip install gutenbergpy

or just install it from source (it's all just python code)

.. sourcecode :: sh

git clone https://github.com/raduangelescu/gutenbergpy
python setup.py install

Usage
=====

Downloading a text
------------------

.. sourcecode :: python

import gutenbergpy.textget
#this gets a book by its gutenberg id
raw_book = gutenbergpy.textget.get_text_by_id(1000)
print raw_book
#this strips the headers from the book
clean_book = gutenbergpy.textget.strip_headers(raw_book)
print clean_book

Query the cache
--------------------
To do this you first need to create the cache (this is a one time thing per os, until you decide to redo it)

.. sourcecode :: python

from gutenbergpy.gutenbergcache import GutenbergCache
GutenbergCache.create()

for debugging/better control you have these boolean options on create

- *refresh* deletes the old cache
- *download* property downloads the rdf file from the gutenberg project
- *unpack* unpacks it
- *parse* parses it in memory
- *cache* writes the cache

.. sourcecode :: python

GutenbergCache.create(refresh=True, download=True, unpack=True, parse=True, cache=True, deleteTemp=True)

for even better control you may set the GutenbergCacheSettings
- *CacheFilename*
- *CacheUnpackDir*
- *CacheArchiveName*
- *ProgressBarMaxLength*
- *CacheRDFDownloadLink*
- *TextFilesCacheFolder*

.. sourcecode :: python

GutenbergCacheSettings.set( CacheFilename="", CacheUnpackDir="",
CacheArchiveName="", ProgressBarMaxLength="", CacheRDFDownloadLink="", TextFilesCacheFolder="")

After doing a create you need to wait, it will be over in about 5 minutes depending on your internet speed and computer power
(On a i7 with gigabit connection and ssd it finishes in about 1 minute)

Get the cache

.. sourcecode :: python

cache = GutenbergCache.get_cache()

Now you can do queries

Get the book Gutenberg unique indices by using this query function

Standard query fields:
- languages
- authors
- types
- titles
- subjects
- publishers
- bookshelves
- downloadtype

.. sourcecode :: python

print cache.query(downloadtype=['application/plain','text/plain','text/html; charset=utf-8'])

Or do a native query on the sqlite database

.. sourcecode :: python

cache.native_query("SELECT * FROM books")

For custom queries take a look at the database scheme:

.. image:: https://github.com/raduangelescu/gutenbergpy/blob/master/sqlitecheme.png
:alt: SQLITE database scheme
:width: 100%
:align: center

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