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音声ファイルをスクレイピングで一括ダウンロードする【Python】【urllib】

Last updated at Posted at 2020-09-23

概要

こちらのページからポケモンの鳴き声のwavファイルをプログラミングでダウンロード(スクレイピング)するコードの紹介です。音声ファイルのダウンロードにurllib.request.urlretrieveという関数を使うのがポイントです。

スクレイピングはマナー、法律を守って自己責任で実行してください。

環境

macOS Catalina 10.15.4
python 3.8.0

ライブラリのインストール

pip install beautifulsoup4
pip install requests
pip install urllib

コード

from bs4 import BeautifulSoup
import requests
import urllib
import time

base_url = 'http://games255.512.jp/'
index_page_url = base_url+'pokewav_DL/index.html'
html_text = requests.get(index_page_url).content #文字化け対策に.textではなく.contentを使う
soup = BeautifulSoup(html_text,"html.parser")

a_tags = soup.find_all('a')
for a in a_tags:
    path = a.get('href')
    if 'pokewav' not in path: continue
    abs_path = base_url + '/'.join(path.split('/')[1:])
    wav_file_name = a.text.replace(':','_')+'.wav'
    urllib.request.urlretrieve(abs_path,wav_file_name)
    print(wav_file_name,'is downloaded')
    time.sleep(1)
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