bottleとfeedgeneratorでRSSを作成

sudo -H pip3 install bottle
sudo -H pip3 install feedgenerator
sudo -H pip3 install pytz

import datetime
import pytz
import os
import re
from urllib.parse import urljoin
from urllib.request import urlopen

from bs4 import BeautifulSoup

import feedgenerator
from bottle import route, run


def get_refuge(url):

    html = urlopen(url).read()
    soup = BeautifulSoup(html, 'html.parser')

    title = soup.select_one('#main_container > h1, h3').get_text(strip=True)

    date_pattern = re.compile(
        '(\d{4})年(\d{1,2})月(\d{1,2})日[ 　](\d{1,2})時(\d{1,2})分')
    result = date_pattern.search(title)

    if result:
        d = [int(i) for i in result.groups()]
        tz = pytz.timezone("Asia/Tokyo")
        pubdate = tz.localize(datetime.datetime(*d))

    description = soup.select_one('#main_container > p').get_text(strip=True)

    return title, url, description, pubdate


def scraping(url, css_select):

    html = urlopen(url).read()
    soup = BeautifulSoup(html, 'html.parser')

    result = [
        get_refuge(urljoin(url, i.get('href')))
        for i in soup.select(css_select)
    ]

    return result


@route('/urge/')
def index_urge():

    # 避難準備情報、避難勧告、避難指示情報

    urge = scraping('http://www.city.imabari.ehime.jp/bousai/kankoku/',
                    '#main_container > p > a')

    feed = feedgenerator.Rss201rev2Feed(
        title="今治市の避難情報",
        link="http://www.city.imabari.ehime.jp/bousai/kankoku/",
        description="避難準備情報、避難勧告、避難指示情報",
        language="ja", )

    for i in urge:
        feed.add_item(title=i[0], link=i[1], description=i[2], pubdate=i[3])

    return feed.writeString('utf-8')

@route('/shelter/')
def index_shelter():

    # 避難所情報

    shelter = scraping('http://www.city.imabari.ehime.jp/bousai/hinanjo/',
                    '#main_container > div > p > a')

    feed = feedgenerator.Rss201rev2Feed(
        title="今治市の避難所情報",
        link="http://www.city.imabari.ehime.jp/bousai/hinanjo/",
        description="避難所情報",
        language="ja", )

    for i in shelter:
        feed.add_item(title=i[0], link=i[1], description=i[2], pubdate=i[3])

    return feed.writeString('utf-8')


run(host=os.getenv("IP", "0.0.0.0"), port=int(os.environ.get("PORT", 8080)))