Skip to main content

Web Scraping Framework

Project description

What is Grab?

Grab is a python web scraping framework. Grab provides a number of helpful methods to perform network requests, scrape web sites and process the scraped content:

  • Automatic cookies (session) support

  • HTTP and SOCKS proxy with/without authorization

  • Keep-Alive support

  • IDN support

  • Tools to work with web forms

  • Easy multipart file uploading

  • Flexible customization of HTTP requests

  • Automatic charset detection

  • Powerful API to extract data from DOM tree of HTML documents with XPATH queries

  • Asynchronous API to make thousands of simultaneous queries. This part of library called Spider. See list of spider fetures below.

  • Python 3 ready

Spider is a framework for writing web-site scrapers. Features:

  • Rules and conventions to organize the request/parse logic in separate blocks of codes

  • Multiple parallel network requests

  • Automatic processing of network errors (failed tasks go back to task queue)

  • You can create network requests and parse responses with Grab API (see above)

  • HTTP proxy support

  • Caching network results in permanent storage

  • Different backends for task queue (in-memory, redis, mongodb)

  • Tools to debug and collect statistics

Grab Example

import logging

from grab import Grab


g = Grab()

g.doc.set_input('login', '****')
g.doc.set_input('password', '****')

g.doc('//ul[@id="user-links"]//button[contains(@class, "signout")]').assert_exists()

home_url = g.doc('//a[contains(@class, "header-nav-link name")]/@href').text()
repo_url = home_url + '?tab=repositories'


for elem in'//h3[@class="repo-list-name"]/a'):
    print('%s: %s' % (elem.text(),

Grab::Spider Example

import logging

from grab.spider import Spider, Task


class ExampleSpider(Spider):
    def task_generator(self):
        for lang in 'python', 'ruby', 'perl':
            url = '' % lang
            yield Task('search', url=url, lang=lang)

    def task_search(self, grab, task):
        print('%s: %s' % (task.lang,

bot = ExampleSpider(thread_number=2)


$ pip install -U grab

See details about installing Grab on different platforms here

Documentation and Help


Mailing list (mostly russian):


To report a bug please use GitHub issue tracker:

If you want to develop new feature in Grab please use issue tracker to describe what you want to do or contact me at

Project details

Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

grab-0.6.41.tar.gz (1.1 MB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page