three ways for spider by python
djangospider is light web crawling framework, it have a few code, but can do high speed crawling, it support three modes to crawl: multithreading, tornado IOloop, and twisted rector.you can easily to understand to how to use async crawler.
Python2.7 Works on Linux
you can download the zip package in github. then unpack the zip package, find the path of setup.py, Execute the command: $sudo python setup.py install
The entry function: Start(start_urls,mode)
start_urls parameter: is a list, and it’s element is tuple:
the first of the tuple is url which you will crawl, the second of the tuple is the callback for url.
the mode parameter: the crawler’s way, it has three types:
if mode is int 1 : multithreading ways if mode is int 2 : tornado async ways if mode is int 3 : twisted async ways
from djangospider.mycrawl.run import Start ,_crawl
- def callback(response,url):
print “get the %s” %url
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