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A Distributed Web Crawler System in Python

Project Description

.. fulmar documentation master file, created by
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fulmar
=======

Fulmar is a distributed crawler system. By using non-blocking network I/O,
Fulmar can handle hundreds of open connections at the same time. You can
extractthe data you need from websites. In a fast, simple, yet extensible way.


Quick links
^^^^^^^^^^^

* `Source (github) <https://github.com/tylderen/fulmar>`_
* `Wiki <https://github.com/tylderen/fulmar/wiki/Links>`_

Code example
^^^^^^^^^^^^

Here is a simple example::

import logging

from fulmar.base_spider import BaseSpider

logger = logging.getLogger(__name__)

class Handler(BaseSpider):
def on_start(self):
self.crawl('http://www.baidu.com/', callback=self.detail_page)

def detail_page(self, response):
try:
page_lxml = response.page_lxml
except Exception as e:
logger.error(str(e))

return {
"url": response.url,
"title": page_lxml.xpath('//title/text()')[0]}



You can save above code in a new file called `baidu_spider.py` and run in console::

fulmar start_project baidu_spider.py

If you have installed `redis`, you will get::

Successfully start the project, project name: "baidu_spider".

Finally, start Fulmar::

fulmar all

Installation
------------

**Automatic installation**::

pip install fulmar

Fulmar is listed in `PyPI <http://pypi.python.org/pypi/fulmar>`_ and
can be installed with ``pip`` or ``easy_install``. Note that the
source distribution includes demo applications that are not present
when Tornado is installed in this way, so you may wish to download a
copy of the source tarball as well.

**Manual installation**: Download tarball, then:

.. parsed-literal::

tar xvzf fulmar-|version|.tar.gz
cd fulmar-|version|
python setup.py build
sudo python setup.py install

The Fulmar source code is `hosted on GitHub
<https://github.com/tylderen/fulmar>`_.

**Prerequisites**: Fulmar runs on Python 2.7, and 3.3+
For Python 2, version 2.7.9 or newer is *strongly*
recommended for the improved SSL support.

Documentation
-------------

This documentation is also available in `PDF and Epub formats
<https://readthedocs.org/projects/fulmar/downloads/>`_.

.. toctree::
:maxdepth: 2

quick



* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`

Release history Release notifications

This version
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0.0.2

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0.0.1

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