May 2017
Beginner to intermediate
220 pages
5h 2m
English
Content preview from Python Web Scraping - Second Edition
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Testing the cache
The source code for the RedisCache class is available at https://github.com/kjam/wswp/blob/master/code/chp3/rediscache.py and, as with DiskCache, the cache can be tested with the link crawler in any Python interpreter. Here, we use IPython to employ the %time command:
In [1]: from chp3.advanced_link_crawler import link_crawlerIn [2]: from chp3.rediscache import RedisCacheIn [3]: %time link_crawler('http://example.webscraping.com/', '/(index|view)', cache=RedisCache())Downloading: http://example.webscraping.com/Downloading: http://example.webscraping.com/index/1Downloading: http://example.webscraping.com/index/2...Downloading: http://example.webscraping.com/view/Afghanistan-1CPU times: user 352 ms, sys: 32 ms, total: 384 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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