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A package and script for extracting article text in html documents.

Project description

A python package for extracting article text in html documents. Check out this demo.

At a Glance

To install:

pip install eatiht
...
easy_install eatiht

Note: On Windows, you may need to install lxml manually using: pip install lxml

Using in Python

import eatiht

url = 'http://news.yahoo.com/curiosity-rover-drills-mars-rock-finds-water-122321635.html'

print eatiht.extract(url)

Output

NASA's Curiosity rover is continuing to help scientists piece together the mystery of how Mars lost its
surface water over the course of billions of years. The rover drilled into a piece of Martian rock called
Cumberland and found some ancient water hidden within it. Researchers were then able to test a key ratio
in the water with Curiosity's onboard instruments...

Using as a command line tool:

eatiht http://news.yahoo.com/curiosity-rover-drills-mars-rock-finds-water-122321635.html >> out.txt

Note: Window’s users may have to add the C:directory to your “path” so that the command line tool works from any directory, not only the ..directory.

Requirements

requests
lxml

Motivation

After searching through the deepest crevices of the internet for some tool|library|module that could effectively extract the main content from a website (ignoring text from ads, sidebar links, etc.), I was slightly disheartened by the apparent ambiguity caused by this content-extraction problem.

My survey resulted in some of the following solutions:

The number of research papers I found on the subject largely outweighs the number available open-source projects. This is my attempt at balancing out the disparity.

In the process of coming up with a solution, I made two unoriginal observations:

  1. XPath’s select all (//), parent node (..) queries and functions (‘string-length’) are remarkably powerful when used together
  2. Unnecessary machine learning is unnecessary

By making an assumption on sentence length, and this is trivial, one can query for text-nodes satisfying said sentence length, then create a frequency distribution (histogram) across the parent-nodes, and the argmax of the resulting distribution is the xpath that is shared amongst likely sentences.

The results were surprisingly good. I personally prefer this approach to the others as it seems to lie somewhere in between the purely rule-based and the drowning-in-ML approaches.

Please raise any issues or yell at me at rodrigopala91@gmail.com or [@mi_ogirdor](https://twitter.com/mi_ogirdor)

Project details


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0.1.14

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0.0.10

This version
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0.0.9

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0.0.8

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0.0.7

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Filename, size & hash SHA256 hash help File type Python version Upload date
eatiht-0.0.9.zip (8.5 kB) Copy SHA256 hash SHA256 Source None Dec 19, 2014

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