August 2017
Intermediate to advanced
500 pages
12h 3m
Japanese
Content preview from PythonとJavaScriptではじめるデータビジュアライゼーション
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153
6.6 リクエストの連結とデータの作成
#
# http://doc.scrapy.org/en/latest/topics/settings.html
#
BOT_NAME = 'nobel_winners'
SPIDER_MODULES = ['nobel_winners.spiders']
NEWSPIDER_MODULE = 'nobel_winners.spiders'
#
ユーザエージェントで自分自身（および自分の
Web
サイト）を特定し、
#
責任をもってクロールする。
#USER_AGENT = 'nobel_winners (+http://www.yourdomain.com)'
HTTPCACHE_ENABLED = True
Scrapy
のドキュメント（
http://bit.ly/1PypUlU
）で
Scrapy
のミドルウェア一式を確認してく
ださい。
キャッシュ機能を有効にしたので、
Scrapy
リクエストをつなげる方法を確認しましょう。
6.6.2
リクエストの作成（
yeild
）
既存のスパイダーの
parse
メソッドは、受賞者を反復処理しながら
process_winner_li
メソッ
ドで国、名前、年、分野、人物情報ハイパーリンクのフィールドをスクレイピングします。そこ
で、人物情報ハイパーリンクを使い、人物情報ページを取得してそのページをスクレイピングのた
めのカスタムメソッドに送る
Scrapy
リクエストを生成します。
Scrapy
は
Python
の
yield
文でジェネレータを作成してリクエストをつなげる ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.