code: def download_file_proxy(p_url, p_op_file, p_username, p_password, proxies):
      
      chunk_size=4096
      import requests
      r = requests.get(p_url, auth=(p_username, p_password), proxies=proxies)
      #print(r.status_code)
      with open(p_op_file, 'wb') as fd:
          for chunk in r.iter_content(chunk_size):
              fd.write(chunk)  
      return r.status_code
docs: Currently fails behind proxy...
      # https://docs.python.org/3/library/urllib.request.html#examples