Extract, clean, transform, hyphenate and metadata for ISBNs (International Standard Book Number).
Project description
Info
isbntools provides several useful methods and functions to validate, clean, transform, hyphenate and get metadata for ISBN strings.
Typical usage (as library):
#!/usr/bin/env python
import isbntools
...Several scripts are provided to use from the command line:
$ to_isbn10 ISBN13transforms an ISBN10 number to ISBN13.
$ to_isbn13 ISBN10transforms an ISBN13 number to ISBN10.
$ isbn_info ISBNgives you the group identifier of the ISBN.
$ isbn_mask ISBNmasks (hyphenate) an ISBN (split it by identifiers).
$ isbn_meta ISBNgives you the main metadata associated with the ISBN (uses worldcat.org), to use the Google Books service enter isbn_meta ISBN goob.
$ isbn_editions ISBNgives the collection of ISBNs that represent a given book (uses worldcat.org).
$ isbn_validate ISBNvalidates ISBN10 and ISBN13.
$ ... | isbn_stdin_validateto use with posix pipes (e.g. cat FILE_WITH_ISBNs | isbn_stdin_validate).
$ isbn_from_words "words from title and author name"a fuzzy script that returns the most probable ISBN from a set of words! (You can verify the result with isbn_meta)!
$ isbntoolswrites version and copyright notice.
Many more scripts could be written with the isbntools library, using the methods for extraction, cleaning, validation and standardization of ISBNs.
Just for fun, suppose I want the most spoken about book with certain words in his title. For a quick-and-dirty solution, enter the following code in a file and save it as isbn_tmsa_book.py.
#!/usr/bin/env python
import sys
import urllib2
from isbntools import *
query = sys.argv[1].replace(' ', '+')
SEARCH_URL = "http://www.google.com/search?q=%s+ISBN" % query
headers = {'User-Agent': 'w3m/0.5.2'}
request = urllib2.Request(SEARCH_URL, headers=headers)
response = urllib2.urlopen(request)
content = response.read()
isbns = get_isbnlike(content)
for item in isbns:
ib = get_canonical_isbn(item, output='isbn13')
if ib: break
print("The ISBN of the most `spoken-about` book with this title is %s" % ib)
print("")
print("... and the book is:")
print("")
print((meta(ib)))Then in a command line (in the same directory):
$ python isbn_tmsa_book.py 'noise'In my case I get:
The ISBN of the most `spoken-about` book with this title is 9780143105985
... and the book is:
{'Publisher': u'Penguin Books', 'Language': u'eng', 'Title': u'White noise',
'Year': u'2009', 'ISBN-13': '9780143105985', 'Authors': u'Don DeLillo ;
introduction by Richard Powers.'}
Have fun!
Install
From the command line enter (in some cases you have to preced the command by sudo):
$ pip install isbntoolsor:
$ easy_install isbntoolsor:
$ pip install isbntools-2.0.6.tar.gz(first you have to download the file!)
For Devs
If you need high quality metadata in your app, the only solution is to use polling of several providers.
You can extend the lib by using the classes and functions exposed in isbntools.dev, namely:
webservice a class that handles the access to web services (just by passing an url) and supports gzip. You can subclass it to extend the functionality… but probably you don’t need to use it! It is used in the next class.
webquery a class that uses webservice to retrive and parse data from a web service. You can build a new provider of metadata by subclassing this class. The following classes do that (by using the call pattern). His main methods allow passing custom functions (handlers) that specialize them to specific needs (data_checker and parser).
googlebooks a class that retrives and parses book metadata, using Google Books API (you only have to provide an ISBN).
wcat a class that retrives and parses book metadata, using the worldcat.org xisbn service (you only have to provide an ISBN).
wcated a class that retrives and parses collections of ISBNs related with a given book, using the worldcat.org xisbn service (you only have to provide an ISBN).
isbndb a class that retrives and parses book metadata, using the isbndb.org service (you only have to provide an ISBN and an API key).
All these classes follow a simple design pattern and, if you follow it, will be very easy to integrate your classes with the rest of the lib.
Known Issues
The meta method and the isbn_meta script sometimes give a wrong result (this is due to errors on the worldcat.org service), in alternative you could use the Google Books service (e.g. isbn_meta 9780143105985 goob).
The isbntools works internally with unicode, however this doesn’t solve errors of lost information due to bad encode/decode at the origin!
Periodically new blocks of ISBNs are issued to agencies. The range of these blocks is on a database that mask uses. So it could happen, if you have a version of isbntools that is too old, mask doesn’t work for valid (recent) issued ISBNs. The solution? Update ``isbntools`` often!
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