René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"tests fail under python3.9: urllib.parse.unquote accepts bytes","articleBody":"```\r\n________________________ UnquotingTests.test_unquoting _________________________\r\n\r\nself = \u003ctest_future.test_urllib_toplevel.UnquotingTests testMethod=test_unquoting\u003e\r\n\r\n    def test_unquoting(self):\r\n        # Make sure unquoting of all ASCII values works\r\n        escape_list = []\r\n        for num in range(128):\r\n            given = hexescape(chr(num))\r\n            expect = chr(num)\r\n            result = urllib_parse.unquote(given)\r\n            self.assertEqual(expect, result,\r\n                             \"using unquote(): %r != %r\" % (expect, result))\r\n            result = urllib_parse.unquote_plus(given)\r\n            self.assertEqual(expect, result,\r\n                             \"using unquote_plus(): %r != %r\" %\r\n                             (expect, result))\r\n            escape_list.append(given)\r\n        escape_string = ''.join(escape_list)\r\n        del escape_list\r\n        result = urllib_parse.unquote(escape_string)\r\n        self.assertEqual(result.count('%'), 1,\r\n                         \"using unquote(): not all characters escaped: \"\r\n                         \"%s\" % result)\r\n        self.assertRaises((TypeError, AttributeError), urllib_parse.unquote, None)\r\n        self.assertRaises((TypeError, AttributeError), urllib_parse.unquote, ())\r\n        with support.check_warnings(('', BytesWarning), quiet=True):\r\n\u003e           self.assertRaises((TypeError, AttributeError), urllib_parse.unquote, bytes(b''))\r\nE           AssertionError: (\u003cclass 'TypeError'\u003e, \u003cclass 'AttributeError'\u003e) not raised by unquote\r\n\r\ntests/test_future/test_urllib_toplevel.py:785: AssertionError\r\n```\r\n\r\npython3.8:\r\n```pycon\r\n\u003e\u003e\u003e import urllib.parse\r\n\u003e\u003e\u003e urllib.parse.unquote(b'')\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\n  File \"/usr/lib64/python3.7/urllib/parse.py\", line 609, in unquote\r\n    if '%' not in string:\r\nTypeError: a bytes-like object is required, not 'str'\r\n```\r\n\r\npython3.9:\r\n```pycon\r\n\u003e\u003e\u003e import urllib.parse\r\n\u003e\u003e\u003e urllib.parse.unquote(b'')\r\n''\r\n```\r\n","author":{"url":"https://github.com/keszybz","@type":"Person","name":"keszybz"},"datePublished":"2020-02-03T21:47:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/541/python-future/issues/541"}