get calender data

cal.py

#!/usr/bin/env python
import bs4
import requests
import re
import icalendar
import pytz
from datetime import datetime
import os

def datestr_to_dateobj(datestr):
    return pytz.timezone('Europe/Stockholm').localize(
        datetime.strptime(datestr, '%Y-%m-%d, %H:%M'))

def parse_seminars(soup):
    """Return a dictionary with keys `startdate` (datetime) and values (string) {`title`,  `speaker`}"""
    seminars = {}
    seminar_section = soup.find('ul', {'class': 'page-list'})
    
    if seminar_section is None:
        return seminars

    for elems in seminar_section:

        if elems == '\n':
            continue

        date_time,  = re.findall(r"([0-9]{4}-[0-9]{2}-[0-9]{2}.*[0-9]{2}:[0-9]{2})",
                                 elems.find('div', {'class': 'page-list__date'}).get_text())

        seminars[datestr_to_dateobj(date_time)] = {'title':  elems.find('h2').get_text(),
                                                   'speaker': elems.find('p').get_text()}
    return seminars

def toical(seminars):
    cal = icalendar.Calendar()
    cal.add('prodid', 'SSE Finance seminars')
    cal.add('version', '2.0')

    for date in seminars:
        event = icalendar.Event()
        event.add('summary', '{} ({})'.format(seminars[date]['title'], seminars[date]['speaker']))
        event.add('dtstart', date)
        cal.add_component(event)

    return cal

# Main
urls = ['https://www.hhs.se/en/Research/Departments/DF/seminars/brown-bags/',
        'https://www.hhs.se/en/Research/Departments/DF/seminars/brown-bags/?hhspn=2',
        'https://www.hhs.se/en/Research/Departments/DF/seminars/seminars/']

soups = map(lambda x: bs4.BeautifulSoup(requests.get(x).content, 'lxml'), urls)
seminars = {k: v for d in map(parse_seminars, soups) for k, v in d.items()}
cal = toical(seminars)

f = open(os.getcwd() + '/seminars.ics', 'wb')
f.write(cal.to_ical())
f.close()