PyQuery-based scraping micro-framework.

Last update: Jul 20, 2022

Related tags

Web Crawling demiurge

Overview

demiurge

PyQuery-based scraping micro-framework. Supports Python 2.x and 3.x.

Documentation: http://demiurge.readthedocs.org

Installing demiurge

$ pip install demiurge

Quick start

Define items to be scraped using a declarative (Django-inspired) syntax:

import demiurge

class TorrentDetails(demiurge.Item):
    label = demiurge.TextField(selector='strong')
    value = demiurge.TextField()

    def clean_value(self, value):
        unlabel = value[value.find(':') + 1:]
        return unlabel.strip()

    class Meta:
        selector = 'div#specifications p'

class Torrent(demiurge.Item):
    url = demiurge.AttributeValueField(
        selector='td:eq(2) a:eq(1)', attr='href')
    name = demiurge.TextField(selector='td:eq(2) a:eq(2)')
    size = demiurge.TextField(selector='td:eq(3)')
    details = demiurge.RelatedItem(
        TorrentDetails, selector='td:eq(2) a:eq(2)', attr='href')

    class Meta:
        selector = 'table.maintable:gt(0) tr:gt(0)'
        base_url = 'http://www.mininova.org'


>>> t = Torrent.one('/search/ubuntu/seeds')
>>> t.name
'Ubuntu 7.10 Desktop Live CD'
>>> t.size
u'695.81\xa0MB'
>>> t.url
'/get/1053846'
>>> t.html
u'<td>19\xa0Dec\xa007</td><td><a href="/cat/7">Software</a></td><td>...'

>>> results = Torrent.all('/search/ubuntu/seeds')
>>> len(results)
116
>>> for t in results[:3]:
...     print t.name, t.size
...
Ubuntu 7.10 Desktop Live CD 695.81 MB
Super Ubuntu 2008.09 - VMware image 871.95 MB
Portable Ubuntu 9.10 for Windows 559.78 MB
...

>>> t = Torrent.one('/search/ubuntu/seeds')
>>> for detail in t.details:
...     print detail.label, detail.value
... 
Category: Software > GNU/Linux
Total size: 695.81 megabyte
Added: 2467 days ago by Distribution
Share ratio: 17 seeds, 2 leechers
Last updated: 35 minutes ago
Downloads: 29,085

See documentation for details: http://demiurge.readthedocs.org

Why demiurge?

Plato, as the speaker Timaeus, refers to the Demiurge frequently in the Socratic dialogue Timaeus, c. 360 BC. The main character refers to the Demiurge as the entity who "fashioned and shaped" the material world. Timaeus describes the Demiurge as unreservedly benevolent, and hence desirous of a world as good as possible. The world remains imperfect, however, because the Demiurge created the world out of a chaotic, indeterminate non-being.

http://en.wikipedia.org/wiki/Demiurge

Contributors

Martín Gaitán (@mgaitan)

Comments

Reausable cleaning functions
You can now add a "clean" kwarg containing a function to a field.

This makes it easy to use quick filtering (I want this data to be an int) and to re-use functions such as parsedatetime.

score = demiurge.TextField(selector=".score .upvoted", clean=int)
opened by traverseda 5
proof of concept: subitem field

short rationale: Sometimes I need to scrap a page to retrieve the actual links where the items are. I would like a way to nest Item classes, analog (in some way) to a in ForeignKey / ManyToManyField in Django.

This is a first PR as a proof of concept, to discuss the idea and its API.

opened by mgaitan 5
RelatedItems only work across urls

An obvious use of RelatedItems (or a similar construct) is recursively mapping a comment tree. Right now there's no elegant way to do that.

An example

http://pastebin.com/WDL4RjkE

Reading through the actual code, I think I might be wrong about this. I'll try and make the docs clearer.

opened by traverseda 2
Use lib "requests" for downloading

I'm right now making use of https://pypi.python.org/pypi/requests-cache which creates a cache of the downloaded stuff magically, and it's awesome. So, I would like to be able to take advantage of it using demiurge.

I don't know if just as an option or as a replacement of pyquery downloader.

What do you think?

opened by jmansilla 2
docs: fix simple typo, ocurrence -> occurrence

There is a small typo in docs/index.rst.

Should read occurrence rather than ocurrence.

Semi-automated pull request generated by https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md

opened by timgates42 1
Fix when no selector defined
the default selector is the whole page ('html') but this is applied through PyQuery.find wich traverses down. example:

In [2]: PyQuery('<html>hello</html>').find('html') Out[2]: [] In [3]: PyQuery('<html>hello</html>')('html') Out[3]: [<html>]
opened by mgaitan 1
support self reference in RelatedItem

RelatedItem('self'). Also, the relateditem's item class could be given by its name (i.eRelatedItem("ItemClass")` ) A typical use case is a listing page with a "next page" link.

opened by mgaitan 0

Releases(v0.2)

v0.2(Sep 20, 2014)
Added docs.

Added RelatedItem.

Added field clean support.

Source code(tar.gz)
Source code(zip)

Owner

Matias Bordese

GitHub Repository http://demiurge.readthedocs.org

This code will be able to scrape movies from a movie website and also provide download links to newly uploaded movies.

Movies-Scraper You are probably tired of navigating through a movie website to get the right movie you'd want to watch during the weekend. There may e

1 Jan 31, 2022

京东茅台抢购

截止 2021/2/1 日，该项目已无法使用！京东：约满即止，仅限京东实名认证用户APP端抢购，2月1日10:00开始预约，2月1日12:00开始抢购（京东APP需升级至8.5.6版本及以上）写在前面本项目来自 huanghyw - jd_seckill，作者的项目地址我找不到了，找到了再贴上

73 Dec 03, 2022

Web scrapping tool written in python3, using regex, to get CVEs, Source and URLs.

searchcve Web scrapping tool written in python3, using regex, to get CVEs, Source and URLs. Generates a CSV file in the current directory. Uses the NI

32 Oct 10, 2022

Works very well and you can ask for the type of image you want the scrapper to collect.

Works very well and you can ask for the type of image you want the scrapper to collect. Also follows a specific urls path depending on keyword selection.

1 Feb 17, 2022

Examine.com supplement research scraper!

ExamineScraper Examine.com supplement research scraper! Why I want to be able to search pages for a specific term. For example, I want to be able to s

15 Dec 06, 2022

a way to scrape a database of all of the isef projects

ISEF Database This is a simple web scraper which gets all of the projects and abstract information from here. My goal for this is for someone to get i

1 Mar 18, 2022

Using Selenium with Python to Web Scrap Popular Youtube Tech Channels.

Web Scrapping Popular Youtube Tech Channels with Selenium Data Mining, Data Wrangling, and Exploratory Data Analysis About the Data Web scrapi

0 Aug 18, 2021

Scrapy, a fast high-level web crawling & scraping framework for Python.

Scrapy Overview Scrapy is a fast high-level web crawling and web scraping framework, used to crawl websites and extract structured data from their pag

45.5k Jan 07, 2023

script to scrape direct download links (ddls) from google drive index.

bhadoo Google Personal/Shared Drive Index scraper. A small script to scrape direct download links (ddls) of downloadable files from bhadoo google driv

53 Dec 16, 2022

Free-Game-Scraper is a useful script that allows you to track down free games and DLCs on many platforms.

Game Scraper Free-Game-Scraper is a useful script that allows you to track down free games and DLCs on many platforms. Join the discord About The Proj

2 Mar 28, 2022

An application that on a given url, crowls a web page and gets all words, sorts and counts them.

Web-Scrapping-1 An application that on a given url, crowls a web page and gets all words, sorts and counts them. Installation Using the package manage

1 Jan 16, 2022

DaProfiler allows you to get emails, social medias, adresses, works and more on your target using web scraping and google dorking techniques

DaProfiler allows you to get emails, social medias, adresses, works and more on your target using web scraping and google dorking techniques, based in France Only. The particularity of this program i

347 Jan 07, 2023

This program will help you to properly scrape all data from a specific website

0 May 15, 2022

Screenhook is a script that captures an image of a web page and send it to a discord webhook.

screenshot from the web for discord webhooks screenhook is a script that captures an image of a web page and send it to a discord webhook.

3 Jun 04, 2022

Scrapegoat is a python library that can be used to scrape the websites from internet based on the relevance of the given topic irrespective of language using Natural Language Processing

Scrapegoat is a python library that can be used to scrape the websites from internet based on the relevance of the given topic irrespective of language using Natural Language Processing. It can be ma

10 Jul 06, 2022

PyQuery-based scraping micro-framework.

Related tags

Overview

demiurge

Installing demiurge

Quick start

Why demiurge?

Contributors

Comments

Reausable cleaning functions

proof of concept: subitem field

RelatedItems only work across urls

Use lib "requests" for downloading

docs: fix simple typo, ocurrence -> occurrence

Fix when no selector defined

support self reference in RelatedItem