Fix URL parsing with Python 3.8.1 and 2.7.15

tests/test_url_parsing.py

@@ -40,9 +40,15 @@ def test_scheme_only(self):
 
     def test_no_scheme1(self):
         u = URL("google.com:80")
-        assert u.scheme == ""
-        assert u.host is None
-        assert u.path == "google.com:80"
+        # See: https://bugs.python.org/issue27657
+        if sys.version_info >= (3, 8, 1) or sys.version_info >= (2, 7, 15):
+            assert u.scheme == "google.com"
+            assert u.host is None
+            assert u.path == "80"
+        else:
+            assert u.scheme == ""
+            assert u.host is None
+            assert u.path == "google.com:80"
         assert u.query_string == ""
         assert u.fragment == ""