bpo-31325: Fix usage of namedtuple in RobotFileParser.parse() (GH-4529) (#4533)

(cherry picked from commit 3df02dbc8e197053105f9dffeae40b04ec66766e)

1 files changed, 6 insertions, 3 deletions

diff --git a/Lib/test/test_robotparser.py b/Lib/test/test_robotparser.py
index 0f64ba8..e47344c 100644
--- a/Lib/test/test_robotparser.py
+++ b/Lib/test/test_robotparser.py
@@ -2,7 +2,6 @@ import io
 import os
 import unittest
 import urllib.robotparser
-from collections import namedtuple
 from test import support
 from http.server import BaseHTTPRequestHandler, HTTPServer
 try:
@@ -90,6 +89,10 @@ class BaseRequestRateTest(BaseRobotTest):
                         self.parser.crawl_delay(agent), self.crawl_delay
                     )
                 if self.request_rate:
+                    self.assertIsInstance(
+                        self.parser.request_rate(agent),
+                        urllib.robotparser.RequestRate
+                    )
                     self.assertEqual(
                         self.parser.request_rate(agent).requests,
                         self.request_rate.requests
@@ -111,7 +114,7 @@ Disallow: /a%2fb.html
 Disallow: /%7ejoe/index.html
     """
     agent = 'figtree'
-    request_rate = namedtuple('req_rate', 'requests seconds')(9, 30)
+    request_rate = urllib.robotparser.RequestRate(9, 30)
     crawl_delay = 3
     good = [('figtree', '/foo.html')]
     bad = ['/tmp', '/tmp.html', '/tmp/a.html', '/a%3cd.html', '/a%3Cd.html',
@@ -240,7 +243,7 @@ Crawl-delay: 1
 Request-rate: 3/15
 Disallow: /cyberworld/map/
     """
-    request_rate = namedtuple('req_rate', 'requests seconds')(3, 15)
+    request_rate = urllib.robotparser.RequestRate(3, 15)
     crawl_delay = 1
     good = ['/', '/test.html']
     bad = ['/cyberworld/map/index.html']