parameters: (self, req, fp, code, msg, headers, newurl)
docstring: Return a Request or None in response to a redirect.
  
          This is called by the http_error_30x methods when a
          redirection response is received.  If a redirection should
          take place, return a new Request to allow http_error_30x to
          perform the redirect.  Otherwise, raise HTTPError if no-one
          else should try to handle this url.  Return None if you can't
          but another Handler might.
docstring_summary: Return a Request or None in response to a redirect.
docstring_tokens: Return a Request or None in response to a redirect .
function: def redirect_request(self, req, fp, code, msg, headers, newurl):
          """Return a Request or None in response to a redirect.
  
          This is called by the http_error_30x methods when a
          redirection response is received.  If a redirection should
          take place, return a new Request to allow http_error_30x to
          perform the redirect.  Otherwise, raise HTTPError if no-one
          else should try to handle this url.  Return None if you can't
          but another Handler might.
          """
          m = req.get_method()
          if (code in (301, 302, 303, 307) and m in ("GET", "HEAD")
              or code in (301, 302, 303) and m == "POST"):
              # Strictly (according to RFC 2616), 301 or 302 in response
              # to a POST MUST NOT cause a redirection without confirmation
              # from the user (of urllib2, in this case).  In practice,
              # essentially all clients do redirect in this case, so we
              # do the same.
              # be conciliant with URIs containing a space
              newurl = newurl.replace(' ', '%20')
              newheaders = dict((k, v) for k, v in req.headers.items()
                                if k.lower() not in (
                                    "content-length", "content-type")
                               )
              return urllib2.Request(newurl,
                             headers=newheaders,
                             origin_req_host=req.get_origin_req_host(),
                             unverifiable=True)
          else:
              raise urllib2.HTTPError(req.get_full_url(), code, msg, headers, fp)
function_tokens: def redirect_request ( self , req , fp , code , msg , headers , newurl ) : m = req . get_method ( ) if ( code in ( 301 , 302 , 303 , 307 ) and m in ( "GET" , "HEAD" ) or code in ( 301 , 302 , 303 ) and m == "POST" ) : # Strictly (according to RFC 2616), 301 or 302 in response # to a POST MUST NOT cause a redirection without confirmation # from the user (of urllib2, in this case).  In practice, # essentially all clients do redirect in this case, so we # do the same. # be conciliant with URIs containing a space newurl = newurl . replace ( ' ' , '%20' ) newheaders = dict ( ( k , v ) for k , v in req . headers . items ( ) if k . lower ( ) not in ( "content-length" , "content-type" ) ) return urllib2 . Request ( newurl , headers = newheaders , origin_req_host = req . get_origin_req_host ( ) , unverifiable = True ) else : raise urllib2 . HTTPError ( req . get_full_url ( ) , code , msg , headers , fp )