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a library for scraping things

Project Description

=========
scrapelib
=========

scrapelib is a library for making requests to websites, particularly those
that may be less-than-reliable.

scrapelib originated as part of the `Open States <http://openstates.org/`_
project to scrape the websites of all 50 state legislatures and as a result
was therefore designed with features desirable when dealing with sites that
have intermittent errors or require rate-limiting.

As of version 0.7 scrapelib has been retooled to take advantage of the superb
`requests <http://python-requests.org>`_ library.

Advantages of using scrapelib over alternatives like httplib2 simply using
requests as-is:

* All of the power of the suberb `requests <http://python-requests.org>`_ library.
* HTTP, HTTPS, and FTP requests via an identical API
* support for simple caching with pluggable cache backends
* request throtting
* configurable retries for non-permanent site failures
* optional robots.txt compliance

scrapelib is a project of Sunlight Labs (c) 2012.
All code is released under a BSD-style license, see LICENSE for details.

Written by James Turk <jturk@sunlightfoundation.com>

Contributors:
* Michael Stephens - initial urllib2/httplib2 version
* Joe Germuska - fix for IPython embedding
* Alex Chiang - fix to test suite


Requirements
============

* python 2.6, 2.7, or 3.2
* requests

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

scrapelib is available on PyPI and can be installed via ``pip install scrapelib``

PyPI package: http://pypi.python.org/pypi/scrapelib

Source: http://github.com/sunlightlabs/scrapelib

Documentation: http://scrapelib.readthedocs.org/en/latest/

Example Usage
=============

::

import scrapelib
s = scrapelib.Scraper(requests_per_minute=10, allow_cookies=True,
follow_robots=True)

# Grab Google front page
s.urlopen('http://google.com')

# Will raise RobotExclusionError
s.urlopen('http://google.com/search')

# Will be throttled to 10 HTTP requests per minute
while True:
s.urlopen('http://example.com')

Release history Release notifications

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1.1.1

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0.6.2

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