old_contents: import urllib2
  import re
  from random import choice
  import os
  import time
  
  PROXY_PATH = 'proxy.txt'
  
  def update_proxies(path=PROXY_PATH):
      # Getting proxy list from address if file is old
      proxies = load_proxies_from_file(path)
      if not proxies:
          download_proxies(path)
      older = 3600 * 6  # 6h
      try:
          os.path.getmtime(path)
      except OSError:
          download_proxies(path)
      diff = time.time() - os.path.getmtime(path)
      if diff > older:
          download_proxies(path)
  
  
  def download_proxies(path=PROXY_PATH):
      # Downloading without proxy
      opener = urllib2.build_opener(urllib2.ProxyHandler())
      urllib2.install_opener(opener)
      request = urllib2.Request('http://www.ip-adress.com/proxy_list/')
      request.add_header('user-agent',
                         'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36')
      request.add_header('referer', 'htpps://www.google.com/')
      f = urllib2.urlopen(request)
      pattern = r'\d*\.\d*\.\d*\.\d*\</a>:\d*'
      found = [i.replace('</a>', '') + '\n' for i in re.findall(pattern, f.read())]
      dump_proxies_to_file(found[:20], path)  # 20 top proxies
  
  
  def load_proxies(path=PROXY_PATH):
      if not os.path.exists(PROXY_PATH):
          with open(PROXY_PATH, 'w'): pass
      update_proxies(path)
      return load_proxies_from_file(path)
  
  
  def load_proxies_from_file(path=PROXY_PATH):
      try:
          with open(path) as outfile:
              return outfile.readlines()
      except Exception:
          return None
  
  
  def dump_proxies_to_file(proxies, path=PROXY_PATH):
      with open(path, 'w') as outfile:
          for proxy in proxies:
              outfile.write(proxy)
  
new_contents: import urllib2
  import re
  from random import choice
  import os
  import time
  
  PROXY_PATH = 'proxy.txt'
  
  def update_proxies(path=PROXY_PATH):
      # Getting proxy list from address if file is old
      proxies = load_proxies_from_file(path)
      if not proxies:
          download_proxies(path)
      older = 3600 * 6  # 6h
      try:
          os.path.getmtime(path)
      except OSError:
          download_proxies(path)
      diff = time.time() - os.path.getmtime(path)
      if diff > older:
          download_proxies(path)
  
  
  def download_proxies(path=PROXY_PATH):
      # Downloading without proxy
      opener = urllib2.build_opener(urllib2.ProxyHandler())
      urllib2.install_opener(opener)
      request = urllib2.Request('https://www.ip-adress.com/proxy_list/')
      request.add_header('user-agent',
                         'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36')
      request.add_header('referer', 'https://www.ip-adress.com/')
      f = urllib2.urlopen(request)
      pattern = r'\d*\.\d*\.\d*\.\d*\</a>:\d*'
      found = [i.replace('</a>', '') + '\n' for i in re.findall(pattern, f.read())]
      dump_proxies_to_file(found[:20], path)  # 20 top proxies
  
  
  def load_proxies(path=PROXY_PATH):
      if not os.path.exists(PROXY_PATH):
          with open(PROXY_PATH, 'w'): pass
      update_proxies(path)
      return load_proxies_from_file(path)
  
  
  def load_proxies_from_file(path=PROXY_PATH):
      try:
          with open(path) as outfile:
              return outfile.readlines()
      except Exception:
          return None
  
  
  def dump_proxies_to_file(proxies, path=PROXY_PATH):
      with open(path, 'w') as outfile:
          for proxy in proxies:
              outfile.write(proxy)
  
subject: Switch proxies downloading to https protocol