a code snippet to get list of HTTPS proxies from "free-proxy-list.net".

getHTTPSproxy.py

import requests
import re

proxy_url = "https://free-proxy-list.net/"
def getProxyBuffer():
    headers = {'User-Agent': "Mozilla/5.0"}
    source = str(requests.get(proxy_url, headers=headers, timeout=10).text)
    data = [list(filter(None, i))[0] for i in re.findall("<td>(.*?)</td>|<td class='hx'>(.*?)</td>", source)]
    groupings = [dict(zip(['ip', 'port', 'code', 'using_anonymous', 'https'], data[i:i + 5])) for i in
                 range(0, len(data), 5)]
    for item in groupings:
        try:
            if item['https'] == 'no':
                groupings.remove(item)
        except:
            pass
    final_groupings = ["{ip}:{port}".format(**i) for i in groupings]
    return final_groupings

getProxyBuffer()