diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/json/__init__.py | 18 | ||||
| -rw-r--r-- | Lib/test/test_unicode.py | 27 |
2 files changed, 39 insertions, 6 deletions
diff --git a/Lib/json/__init__.py b/Lib/json/__init__.py index 725b5cdc88..86a7a3e50a 100644 --- a/Lib/json/__init__.py +++ b/Lib/json/__init__.py @@ -122,7 +122,7 @@ _default_encoder = JSONEncoder( def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True, cls=None, indent=None, separators=None, - default=None, **kw): + default=None, sort_keys=False, **kw): """Serialize ``obj`` as a JSON formatted stream to ``fp`` (a ``.write()``-supporting file-like object). @@ -155,6 +155,9 @@ def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, ``default(obj)`` is a function that should return a serializable version of obj or raise TypeError. The default simply raises TypeError. + If *sort_keys* is ``True`` (default: ``False``), then the output of + dictionaries will be sorted by key. + To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the ``.default()`` method to serialize additional types), specify it with the ``cls`` kwarg; otherwise ``JSONEncoder`` is used. @@ -164,7 +167,7 @@ def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, if (not skipkeys and ensure_ascii and check_circular and allow_nan and cls is None and indent is None and separators is None and - default is None and not kw): + default is None and not sort_keys and not kw): iterable = _default_encoder.iterencode(obj) else: if cls is None: @@ -172,7 +175,7 @@ def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, iterable = cls(skipkeys=skipkeys, ensure_ascii=ensure_ascii, check_circular=check_circular, allow_nan=allow_nan, indent=indent, separators=separators, - default=default, **kw).iterencode(obj) + default=default, sort_keys=sort_keys, **kw).iterencode(obj) # could accelerate with writelines in some versions of Python, at # a debuggability cost for chunk in iterable: @@ -181,7 +184,7 @@ def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True, allow_nan=True, cls=None, indent=None, separators=None, - default=None, **kw): + default=None, sort_keys=False, **kw): """Serialize ``obj`` to a JSON formatted ``str``. If ``skipkeys`` is false then ``dict`` keys that are not basic types @@ -213,6 +216,9 @@ def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True, ``default(obj)`` is a function that should return a serializable version of obj or raise TypeError. The default simply raises TypeError. + If *sort_keys* is ``True`` (default: ``False``), then the output of + dictionaries will be sorted by key. + To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the ``.default()`` method to serialize additional types), specify it with the ``cls`` kwarg; otherwise ``JSONEncoder`` is used. @@ -222,14 +228,14 @@ def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True, if (not skipkeys and ensure_ascii and check_circular and allow_nan and cls is None and indent is None and separators is None and - default is None and not kw): + default is None and not sort_keys and not kw): return _default_encoder.encode(obj) if cls is None: cls = JSONEncoder return cls( skipkeys=skipkeys, ensure_ascii=ensure_ascii, check_circular=check_circular, allow_nan=allow_nan, indent=indent, - separators=separators, default=default, + separators=separators, default=default, sort_keys=sort_keys, **kw).encode(obj) diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py index 19b06a034d..000ae6a430 100644 --- a/Lib/test/test_unicode.py +++ b/Lib/test/test_unicode.py @@ -906,6 +906,21 @@ class UnicodeTest(string_tests.CommonTest, self.assertRaises(ValueError, '{}'.format_map, 'a') self.assertRaises(ValueError, '{a} {}'.format_map, {"a" : 2, "b" : 1}) + def test_format_huge_precision(self): + format_string = ".{}f".format(sys.maxsize + 1) + with self.assertRaises(ValueError): + result = format(2.34, format_string) + + def test_format_huge_width(self): + format_string = "{}f".format(sys.maxsize + 1) + with self.assertRaises(ValueError): + result = format(2.34, format_string) + + def test_format_huge_item_number(self): + format_string = "{{{}:.6f}}".format(sys.maxsize + 1) + with self.assertRaises(ValueError): + result = format_string.format(2.34) + def test_format_auto_numbering(self): class C: def __init__(self, x=100): @@ -990,6 +1005,18 @@ class UnicodeTest(string_tests.CommonTest, self.assertEqual('%f' % INF, 'inf') self.assertEqual('%F' % INF, 'INF') + @support.cpython_only + def test_formatting_huge_precision(self): + from _testcapi import INT_MAX + format_string = "%.{}f".format(INT_MAX + 1) + with self.assertRaises(ValueError): + result = format_string % 2.34 + + def test_formatting_huge_width(self): + format_string = "%{}f".format(sys.maxsize + 1) + with self.assertRaises(ValueError): + result = format_string % 2.34 + def test_startswith_endswith_errors(self): for meth in ('foo'.startswith, 'foo'.endswith): with self.assertRaises(TypeError) as cm: |