January 2016
Intermediate to advanced
337 pages
11h 50m
English
Content preview from Text Mining and Visualization
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188 Text Mining and Visualization: Case Studies Using Open-Source Tools
8.6.7 Python Imports and Global Variables
At the very top of your simplecrawler.py file, some basic imports for the function of
Scrapy are needed. Additional imports for working with JSON, random numbers and copy-
ing are also needed. The following code should be added to the top of your file:
1 from scrapy import Spider
2 from scrapy.selector import HtmlXPathSelector
3 from scrapy.selector import Selector
4 import json
5 from random import randint
6 import random
7 import unicodedata
8 import copy
Just below this code, a collection of global variables need to be added. These include the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.