gh-116897: Deprecate generic false values in urllib.parse.parse_qsl() (GH-116903)

Accepting objects with false values (like 0 and []) except empty strings
and byte-like objects and None in urllib.parse functions parse_qsl() and
parse_qs() is now deprecated.

1 files changed, 9 insertions, 1 deletions

diff --git a/Lib/test/test_urlparse.py b/Lib/test/test_urlparse.py
index 297fb48..4516bde 100644
--- a/Lib/test/test_urlparse.py
+++ b/Lib/test/test_urlparse.py
@@ -1314,9 +1314,17 @@ class UrlParseTestCase(unittest.TestCase):
 
     def test_parse_qsl_false_value(self):
         kwargs = dict(keep_blank_values=True, strict_parsing=True)
-        for x in '', b'', None, 0, 0.0, [], {}, memoryview(b''):
+        for x in '', b'', None, memoryview(b''):
             self.assertEqual(urllib.parse.parse_qsl(x, **kwargs), [])
             self.assertRaises(ValueError, urllib.parse.parse_qsl, x, separator=1)
+        for x in 0, 0.0, [], {}:
+            with self.assertWarns(DeprecationWarning) as cm:
+                self.assertEqual(urllib.parse.parse_qsl(x, **kwargs), [])
+            self.assertEqual(cm.filename, __file__)
+            with self.assertWarns(DeprecationWarning) as cm:
+                self.assertEqual(urllib.parse.parse_qs(x, **kwargs), {})
+            self.assertEqual(cm.filename, __file__)
+            self.assertRaises(ValueError, urllib.parse.parse_qsl, x, separator=1)
 
     def test_parse_qsl_errors(self):
         self.assertRaises(TypeError, urllib.parse.parse_qsl, list(b'a=b'))