new_contents: # -*- coding:utf-8 -*-
  from __future__ import absolute_import
  import sys
  import socket
  from gtornado.green import AsyncSocket
  
  
  def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
                        source_address=None, socket_options=None):
      """Connect to *address* and return the socket object.
      Convenience function.  Connect to *address* (a 2-tuple ``(host,
      port)``) and return the socket object.  Passing the optional
      *timeout* parameter will set the timeout on the socket instance
      before attempting to connect.  If no *timeout* is supplied, the
      global default timeout setting returned by :func:`getdefaulttimeout`
      is used.  If *source_address* is set it must be a tuple of (host, port)
      for the socket to bind as a source address before making the connection.
      An host of '' or port 0 tells the OS to use the default.
      """
  
      host, port = address
      if host.startswith('['):
          host = host.strip('[]')
      err = None
      for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
          af, socktype, proto, canonname, sa = res
          sock = None
          try:
              sock = socket.socket(af, socktype, proto)
  
              # If provided, set socket level options before connecting.
              # This is the only addition urllib3 makes to this function.
              _set_socket_options(sock, socket_options)
  
              # if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
                  # sock.settimeout(timeout)
              # if source_address:
                  # sock.bind(source_address)
              iostream = AsyncSocket(sock)
              iostream.connect((host, port))
              return iostream
  
          except socket.error as e:
              err = e
              if sock is not None:
                  iostream.close()
                  sock = iostream = None
  
      if err is not None:
          raise err
  
      raise socket.error("getaddrinfo returns an empty list")
  
  
  def _set_socket_options(sock, options):
      if options is None:
          return
  
      for opt in options:
          sock.setsockopt(*opt)
  
  def patch_requests():
      sys.modules["requests"].packages.urllib3.util.connection.create_connection = create_connection
  
subject: add missed requests.py