old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import sys
  
  PY3 = sys.version_info[0] == 3
  PY2 = sys.version_info[0] == 2
  
  if PY3:
      from urllib.request import urlopen as _urlopen
      from urllib.parse import (urlparse as parse_url, urlunparse, urljoin, urlencode)
  
      def _url_encode(params):
          return urlencode(params).encode("utf-8")
  
      def _iteritems(d):
          return iter(d.items())
  
      wait_for_input = input
  
      import queue
      from urllib.error import HTTPError, URLError
  
  else:
      from urllib import (urlopen as _urlopen, urlencode)
      from urlparse import urlparse as parse_url
      from urlparse import urlunparse, urljoin
  
      def _url_encode(params):
          return urlencode(params)
  
      def _iteritems(d):
          return d.iteritems()
  
      wait_for_input = raw_input
  
      import Queue as queue
      from urllib2 import HTTPError, URLError
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import sys
  
  PY3 = sys.version_info[0] == 3
  PY2 = sys.version_info[0] == 2
  
  if PY3:
      from urllib.request import urlopen as _urlopen
      from urllib.parse import (urlparse as parse_url, urlunparse, urljoin, urlencode)
  
      def _url_encode(params):
          return urlencode(params).encode("utf-8")
  
      def _iteritems(d):
          return iter(d.items())
  
      wait_for_input = input
  
  else:
      from urllib import (urlopen as _urlopen, urlencode)
      from urlparse import urlparse as parse_url
      from urlparse import urlunparse, urljoin
  
      def _url_encode(params):
          return urlencode(params)
  
      def _iteritems(d):
          return d.iteritems()
  
      wait_for_input = raw_input
  
subject: Remove unused compat