May 2024
Intermediate to advanced
200 pages
4h 57m
Japanese
Content preview from Python2年生 スクレイピングのしくみ 第2版 体験してわかる！会話でまなべる！
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Chapter
4
152
❶「防災」をクリックして「消火栓（福井県鯖江市）」 の❷「CSV」をクリックして、❸
表示されるリンクをクリックして、ダウンロードします。
続いて、「防災」をクリックして解除し、❹「施設」をクリックして「店舗（福井県鯖江市）」
の❺「
CSV」をクリックして、❻表示されるリンクをクリックして、ダウンロードします。
2つのCSVファイル（200.csv、898.csv）がダウンロードされます。
CSV
ファイル （消火栓）を読み込む
まずは、消火栓のCSVファイル（200.csv）をテキストエディタで開いて確認してみま
しょう。
消火栓と店舗かぁ！
面白いね。
❸クリック
❶クリック
❷クリック
❻クリック
❹クリック
❺クリック
「データシティ鯖江」は、
CC
ライセンス「
CCBY
」で公開
されているので、著作者の情
報を明記するだけで無料で自
由に利用できます。
153
自治体のデータ：データシティ鯖江
LESSON
16
１行目がヘッダーになっています。日本語はShift JISが使われています。そこで、pandas
で「shift jis形式」で読み込みます。それぞれのデータの項目名を表示しましょう。
import pandas as pd
# CSV
ファイルをデータフレームに読み込む
df = pd.read_csv( ...
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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.