Parse an XML sitemap with Python, requests and BeautifulSoup4 (works with python3)

xml.py

from argparse import ArgumentParser
import requests
from bs4 import BeautifulSoup

def parse_sitemap(url):
    resp = requests.get(url)
    
    # we didn't get a valid response, bail
    if 200 != resp.status_code:
        return False
    
    # BeautifulStoneSoup to parse the document
    soup = BeautifulSoup(resp.content, 'xml')
    
    # find all the <url> tags in the document
    urls = soup.findAll('url')
    
    # no urls? bail
    if not urls:
        return False
    
    # storage for later...
    out = []
    
    #extract what we need from the url
    for u in urls:
        loc = u.find('loc').string
        # not a sitemap requirement skip if not present
        if u.find('priority'):
            prio = u.find('priority').string
        else:
            prio = 'N/A'
        # not a sitemap requirement skip if not present
        if u.find('changefreq'):
            change = u.find('changefreq').string
        else:
            change = 'N/A'
        # not a sitemap requirement skip if not present
        if u.find('lastmod'):
            last = u.find('lastmod').string
        else:
            last = 'N/A'
        out.append([loc, prio, change, last])
    return out

if __name__ == '__main__':
    options = ArgumentParser()
    options.add_argument('-u', '--url', action='store', dest='url', help='The file contain one url per line')
    options.add_argument('-o', '--output', action='store', dest='out', default='out.txt', help='Where you would like to save the data')
    args = options.parse_args()
    urls = parse_sitemap(args.url)
    if not urls:
        print('There was an error!')
    with open(args.out, 'w') as out:
        for u in urls:
            out.write('\t'.join([i.encode('utf-8') for i in u]) + '\n')