From a7d64a6f4c0307f9c58ea170705b1552580d93eb Mon Sep 17 00:00:00 2001 From: Ezio Melotti Date: Wed, 13 Mar 2013 01:52:34 +0200 Subject: #17368: Fix an off-by-one error in the Python JSON decoder that caused a failure while decoding empty object literals when object_pairs_hook was specified. --- Lib/json/decoder.py | 2 +- Lib/test/json_tests/test_decode.py | 14 ++++++++++---- Misc/NEWS | 4 ++++ 3 files changed, 15 insertions(+), 5 deletions(-) diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py index 0c59edd..938ebff 100644 --- a/Lib/json/decoder.py +++ b/Lib/json/decoder.py @@ -167,7 +167,7 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook, if nextchar == '}': if object_pairs_hook is not None: result = object_pairs_hook(pairs) - return result, end + return result, end + 1 pairs = {} if object_hook is not None: pairs = object_hook(pairs) diff --git a/Lib/test/json_tests/test_decode.py b/Lib/test/json_tests/test_decode.py index 0a55a33..15a427f 100644 --- a/Lib/test/json_tests/test_decode.py +++ b/Lib/test/json_tests/test_decode.py @@ -25,16 +25,22 @@ class TestDecode: p = [("xkd", 1), ("kcw", 2), ("art", 3), ("hxm", 4), ("qrt", 5), ("pad", 6), ("hoy", 7)] self.assertEqual(self.loads(s), eval(s)) - self.assertEqual(self.loads(s, object_pairs_hook = lambda x: x), p) + self.assertEqual(self.loads(s, object_pairs_hook=lambda x: x), p) self.assertEqual(self.json.load(StringIO(s), object_pairs_hook=lambda x: x), p) - od = self.loads(s, object_pairs_hook = OrderedDict) + od = self.loads(s, object_pairs_hook=OrderedDict) self.assertEqual(od, OrderedDict(p)) self.assertEqual(type(od), OrderedDict) # the object_pairs_hook takes priority over the object_hook - self.assertEqual(self.loads(s, object_pairs_hook = OrderedDict, - object_hook = lambda x: None), + self.assertEqual(self.loads(s, object_pairs_hook=OrderedDict, + object_hook=lambda x: None), OrderedDict(p)) + # check that empty objects literals work (see #17368) + self.assertEqual(self.loads('{}', object_pairs_hook=OrderedDict), + OrderedDict()) + self.assertEqual(self.loads('{"empty": {}}', + object_pairs_hook=OrderedDict), + OrderedDict([('empty', OrderedDict())])) def test_decoder_optimizations(self): # Several optimizations were made that skip over calls to diff --git a/Misc/NEWS b/Misc/NEWS index c4da800..9b4aa52 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -233,6 +233,10 @@ Core and Builtins Library ------- +- Issue #17368: Fix an off-by-one error in the Python JSON decoder that caused + a failure while decoding empty object literals when object_pairs_hook was + specified. + - Issue #14645: The email generator classes now produce output using the specified linesep throughout. Previously if the prolog, epilog, or body were stored with a different linesep, that linesep was used. This -- cgit v0.12