A high-level distributed crawling framework.

Related tags

Web Crawlingcola
Overview

Cola: high-level distributed crawling framework

Overview

Cola is a high-level distributed crawling framework, used to crawl pages and extract structured data from websites. It provides simple and fast yet flexible way to achieve your data acquisition objective. Users only need to write one piece of code which can run under both local and distributed mode.

Requirements

  • Python2.7 (Python3+ will be supported later)
  • Work on Linux, Windows and Mac OSX

Install

The quick way:

pip install cola

Or, download source code, then run:

python setup.py install

Write applications

Documents will update soon, now just refer to the wiki or weibo application.

Run applications

For the wiki or weibo app, please ensure the installation of dependencies, weibo as an example:

pip install -r /path/to/cola/app/weibo/requirements.txt

Local mode

In order to let your application support local mode, just add code to the entrance as below.

from cola.context import Context
ctx = Context(local_mode=True)
ctx.run_job(os.path.dirname(os.path.abspath(__file__)))

Then run the application:

python __init__.py

Stop the local job by CTRL+C.

Distributed mode

Start master:

coca master -s [ip:port]

Start one or more workers:

coca worker -s -m [ip:port]

Then run the application(weibo as an example):

coca job -u /path/to/cola/app/weibo -r

Coca command

Coca is a convenient command-line tool for the whole cola environment.

master

Kill master to stop the whole cluster:

coca master -k

job

List all jobs:

coca job -m [ip:port] -l

Example as:

list jobs at master: 10.211.55.2:11103
====> job id: 8ZcGfAqHmzc, job description: sina weibo crawler, status: stopped

You can run a job which shown in the list above:

coca job -r 8ZcGfAqHmzc

Actually, you don't have to input the complete job name:

coca job -r 8Z

Part of the job name is fine if there's no conflict.

You can know the status of a running job by:

coca job -t 8Z

The status like counters during running and so on will be output to the terminal.

You can kill a job by the kill command:

coca job -k 8Z

startproject

You can create an application by this command:

coca startproject colatest

Remember, help command will always be helpful:

coca -h

or

coca master -h

Notes

Chinese docs(wiki).

Donation

Cola is a non-profit project and by now maintained by myself, thus any donation will be encouragement for the further improvements of cola project.

Alipay & Paypal: [email protected]

You might also like...
Web Scraping Framework

Grab Framework Documentation Installation $ pip install -U grab See details about installing Grab on different platforms here http://docs.grablib.

Async Python 3.6+ web scraping micro-framework based on asyncio
Async Python 3.6+ web scraping micro-framework based on asyncio

Ruia 🕸️ Async Python 3.6+ web scraping micro-framework based on asyncio. ⚡ Write less, run faster. Overview Ruia is an async web scraping micro-frame

Transistor, a Python web scraping framework for intelligent use cases.
Transistor, a Python web scraping framework for intelligent use cases.

Web data collection and storage for intelligent use cases. transistor About The web is full of data. Transistor is a web scraping framework for collec

PyQuery-based scraping micro-framework.

demiurge PyQuery-based scraping micro-framework. Supports Python 2.x and 3.x. Documentation: http://demiurge.readthedocs.org Installing demiurge $ pip

Crawler do site Fundamentus.com com o uso do framework scrapy, tanto da aba detalhada como a de resumo.

Crawler do site Fundamentus.com com o uso do framework scrapy, tanto da aba detalhada como a de resumo. (Todas as infomações)

A simple django-rest-framework api using web scraping

Apicell You can use this api to search in google, bing, pypi and subscene and get results Method : POST Parameter : query Example import request url =

Python framework to scrape Pastebin pastes and analyze them
Python framework to scrape Pastebin pastes and analyze them

pastepwn - Paste-Scraping Python Framework Pastebin is a very helpful tool to store or rather share ascii encoded data online. In the world of OSINT,

This Spider/Bot is developed using Python and based on Scrapy Framework to Fetch some items information from Amazon

- Hello, This Project Contains Amazon Web-bot. - I've developed this bot for fething some items information on Amazon. - Scrapy Framework in Python is

This is a web scraper, using Python framework Scrapy, built to extract data  from the Deals of the Day section on Mercado Livre website.
This is a web scraper, using Python framework Scrapy, built to extract data from the Deals of the Day section on Mercado Livre website.

Deals of the Day This is a web scraper, using the Python framework Scrapy, built to extract data such as price and product name from the Deals of the

Comments
  • docs: Fix a few typos

    docs: Fix a few typos

    There are small typos in:

    • cola/cluster/master.py
    • cola/core/bloomfilter/init.py
    • cola/core/opener.py

    Fixes:

    • Should read experimentally rather than experimently.
    • Should read entries rather than enteries.
    • Should read continuously rather than continously.

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

    opened by timgates42 0
  • 任务执行完成后为什么始终不退出

    任务执行完成后为什么始终不退出

    Task类的run方法内有两个循环,最外面循环只有在stop事件出现后才出退出, 为什么?

    def run(self):
            try:
                curr_priority = 0
                while not self.stopped.is_set():
                    priority_name = 'inc' if curr_priority == self.n_priorities \
                                        else curr_priority
                    is_inc = priority_name == 'inc'
                    
                    while not self.nonsuspend.wait(5):
                        continue
                    if self.stopped.is_set():
                        break
                    
                    self.logger.debug('start to process priority: %s' % priority_name)
                    
                    last = self.priorities_secs[curr_priority]
                    clock = Clock()
                    runnings = []
                    try:
                        no_budgets_times = 0
                        while not self.stopped.is_set():
                            if clock.clock() >= last:
                                break
                            
                            if not is_inc:
                                status = self._apply(no_budgets_times)
                                if status == CANNOT_APPLY:
                                    break
                                elif status == APPLY_FAIL:
                                    no_budgets_times += 1
                                    if not self._has_not_finished(curr_priority) and \
                                        len(runnings) == 0:
                                        continue
                                    
                                    if self._has_not_finished(curr_priority) and \
                                        len(runnings) == 0:
                                        self._get_unit(curr_priority, runnings)
                                else:
                                    no_budgets_times = 0
                                    self._get_unit(curr_priority, runnings)
                            else:
                                self._get_unit(curr_priority, runnings)
                                
                            if len(runnings) == 0:
                                break
                            if self.is_bundle:
                                self.logger.debug(
                                    'process bundle from priority %s' % priority_name)
                                rest = min(last - clock.clock(), MAX_BUNDLE_RUNNING_SECONDS)
                                if rest <= 0:
                                    break
                                obj = self.executor.execute(runnings.pop(), rest, is_inc=is_inc)
                            else:
                                obj = self.executor.execute(runnings.pop(), is_inc=is_inc)
                                
                            if obj is not None:
                                runnings.insert(0, obj)  
                    finally:
                        self.priorities_objs[curr_priority].extend(runnings)
                        
                    curr_priority = (curr_priority+1) % self.full_priorities
            finally:
                self.counter_client.sync()
                self.save()
    
    opened by brightgems 5
  • 看了下,和上一个issues的log是一样的,应该是mq没有保护好的问题把

    看了下,和上一个issues的log是一样的,应该是mq没有保护好的问题把

    Exception in thread Thread-2: Traceback (most recent call last): File "/usr/local/lib/python2.7/threading.py", line 551, in *bootstrap_inner self.run() File "/usr/local/lib/python2.7/threading.py", line 504, in run self.__target(_self.__args, _self.__kwargs) File "/usr/crawl/code/cola-code/cola/core/mq/__init.py", line 103, in _init_process self.put(objs, flush=flush) File "/usr/crawl/code/cola-code/cola/core/mq/node.py", line 407, in put self._remote_or_local_batch_put(addr, self.caches[addr]) File "/usr/crawl/code/cola-code/cola/core/mq/node.py", line 348, in _remote_or_local_batch_put self.mq_node.batch_put(objs) File "/usr/crawl/code/cola-code/cola/core/mq/node.py", line 151, in batch_put self.put(obs, force=force, priority=priority) File "/usr/crawl/code/cola-code/cola/core/mq/node.py", line 125, in put priority_store.put(objs, force=force) File "/usr/crawl/code/cola-code/cola/core/mq/store.py", line 291, in put result = self.put_one(obj, force, commit=False) File "/usr/crawl/code/cola-code/cola/core/mq/store.py", line 266, in put_one pos = self._seek_writable_pos(m) File "/usr/crawl/code/cola-code/cola/core/mq/store.py", line 228, in _seek_writable_pos size, = struct.unpack('I', map_handle[pos:pos+4]) TypeError: 'NoneType' object has no attribute 'getitem'

    opened by tottilin 0
Releases(0.1.0beta)
Owner
Xuye (Chris) Qin
Core developer and architect of Mars which is a tensor-based unified framework for large scale data computation, also worked on PyODPS and cola.
Xuye (Chris) Qin
A dead simple crawler to get books information from Douban.

Introduction A dead simple crawler to get books information from Douban. Pre-requesites Python 3 Install dependencies from requirements.txt (Optional)

Yun Wang 1 Jan 10, 2022
Scraping script for stats on covid19 pandemic status in Chiba prefecture, Japan

About 千葉県の地域別の詳細感染者統計(Excelファイル) をCSVに変換し、かつ地域別の日時感染者集計値を出力するスクリプトです。 Requirement POSIX互換なシェル, e.g. GNU Bash (1) curl (1) python = 3.8 pandas = 1.1.

Conv4Japan 1 Nov 29, 2021
Unja is a fast & light tool for fetching known URLs from Wayback Machine

Unja Fetch Known Urls What's Unja? Unja is a fast & light tool for fetching known URLs from Wayback Machine, Common Crawl, Virus Total & AlienVault's

Sheryar 10 Aug 07, 2022
FilmMikirAPI - A simple rest-api which is used for scrapping on the Kincir website using the Python and Flask package

FilmMikirAPI - A simple rest-api which is used for scrapping on the Kincir website using the Python and Flask package

UserGhost411 1 Nov 17, 2022
🐞 Douban Movie / Douban Book Scarpy

Python3-based Douban Movie/Douban Book Scarpy crawler for cover downloading + data crawling + review entry.

Xingbo Jia 1 Dec 03, 2022
哔哩哔哩爬取器:以个人为中心

Open Bilibili Crawer 哔哩哔哩是一个信息非常丰富的社交平台,我们基于此构造社交网络。在该网络中,节点包括用户(up主),以及视频、专栏等创作产物;关系包括:用户之间,包括关注关系(following/follower),回复关系(评论区),转发关系(对视频or动态转发);用户对创

Boshen Shi 3 Oct 21, 2021
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

Dalunacrobate 347 Jan 07, 2023
Scrape Twitter for Tweets

Backers Thank you to all our backers! 🙏 [Become a backer] Sponsors Support this project by becoming a sponsor. Your logo will show up here with a lin

Ahmet Taspinar 2.2k Jan 05, 2023
一些爬虫相关的签名、验证码破解

cracking4crawling 一些爬虫相关的签名、验证码破解,目前已有脚本: 小红书App接口签名(shield)(2020.12.02) 小红书滑块(数美)验证破解(2020.12.02) 海南航空App接口签名(hnairSign)(2020.12.05) 说明: 脚本按目标网站、App命

XNFA 90 Feb 09, 2021
此脚本为 python 脚本,实现原理为利用 selenium 定位相关元素,再配合点击事件完成浏览器的自动化.

此脚本为 python 脚本,实现原理为利用 selenium 定位相关元素,再配合点击事件完成浏览器的自动化.

N0el4kLs 5 Nov 19, 2021
Scrapy-based cyber security news finder

Cyber-Security-News-Scraper Scrapy-based cyber security news finder Goal To keep up to date on the constant barrage of information within the field of

2 Nov 01, 2021
Instagram profile scrapper with python

IG Profile Scrapper Instagram profile Scrapper Just type the username, and boo! :D Instalation clone this repo to your computer git clone https://gith

its Galih 6 Nov 07, 2022
Automated Linkedin bot that will improve your visibility and increase your network.

LinkedinSpider LinkedinSpider is a small project using browser automating to increase your visibility and network of connections on Linkedin. DISCLAIM

Frederik 2 Nov 26, 2021
TikTok Username Swapper/Claimer/etc

TikTok-Turbo TikTok Username Swapper/Claimer/etc I wanted to create it as fast as possible but i eventually gave up and recoded it many many many many

Kevin 12 Dec 19, 2022
A tool for scraping and organizing data from NewsBank API searches

nbscraper Overview This simple tool automates the process of copying, pasting, and organizing data from NewsBank API searches. Curerntly, nbscrape onl

0 Jun 17, 2021
Github scraper app is used to scrape data for a specific user profile created using streamlit and BeautifulSoup python packages

Github Scraper Github scraper app is used to scrape data for a specific user profile. Github scraper app gets a github profile name and check whether

Siva Prakash 6 Apr 05, 2022
Web-scraping - A bot using Python with BeautifulSoup that scraps IRS website by form number and returns the results as json

Web-scraping - A bot using Python with BeautifulSoup that scraps IRS website (prior form publication) by form number and returns the results as json. It provides the option to download pdfs over a ra

1 Jan 04, 2022
Subscrape - A Python scraper for substrate chains

subscrape A Python scraper for substrate chains that uses Subscan. Usage copy co

ChaosDAO 14 Dec 15, 2022
TarkovScrappy - A nifty little bot that lets you know if a queried item might be required for a quest at some point in the land of Tarkov!

TarkovScrappy A nifty little bot that lets you know if a queried item might be required for a quest at some point in the land of Tarkov! Hideout items

Joshua Smeda 2 Apr 11, 2022
A scrapy pipeline that provides an easy way to store files and images using various folder structures.

scrapy-folder-tree This is a scrapy pipeline that provides an easy way to store files and images using various folder structures. Supported folder str

Panagiotis Simakis 7 Oct 23, 2022