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Site Scraping Framework based on py3 asyncio

Project description

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Web scraping framework based on py3 asyncio & aiohttp libraries.

Usage Example

import re
from itertools import islice

from iob import Crawler, Request

RE_TITLE = re.compile(r'<title>([^<]+)</title>', re.S | re.I)

class TestCrawler(Crawler):
    def task_generator(self):
        for host in islice(open('var/domains.txt'), 100):
            host = host.strip()
            if host:
                yield Request('http://%s/' % host, tag='page')

    def handler_page(self, req, res):
        print('Result of request to {}'.format(req.url))
        try:
            title = RE_TITLE.search(res.body).group(1)
        except AttributeError:
            title = 'N/A'
        print('Title: {}'.format(title))

bot = TestCrawler(concurrency=10)
bot.run()

Installation

pip install iob

Dependencies

  • Python>=3.4
  • aiohttp

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