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-rw-r--r--Lib/json/__init__.py25
-rw-r--r--Lib/json/decoder.py28
-rw-r--r--Lib/json/encoder.py29
-rw-r--r--Lib/json/scanner.py4
-rw-r--r--Lib/json/tool.py3
5 files changed, 36 insertions, 53 deletions
diff --git a/Lib/json/__init__.py b/Lib/json/__init__.py
index 48a4f8f..3f95cc3 100644
--- a/Lib/json/__init__.py
+++ b/Lib/json/__init__.py
@@ -39,8 +39,7 @@ Compact encoding::
Pretty printing::
>>> import json
- >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True,
- ... indent=4, separators=(',', ': ')))
+ >>> print(json.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4))
{
"4": 5,
"6": 7
@@ -146,13 +145,12 @@ def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True,
If ``indent`` is a non-negative integer, then JSON array elements and
object members will be pretty-printed with that indent level. An indent
level of 0 will only insert newlines. ``None`` is the most compact
- representation. Since the default item separator is ``', '``, the
- output might include trailing whitespace when ``indent`` is specified.
- You can use ``separators=(',', ': ')`` to avoid this.
+ representation.
- If ``separators`` is an ``(item_separator, dict_separator)`` tuple
- then it will be used instead of the default ``(', ', ': ')`` separators.
- ``(',', ':')`` is the most compact JSON representation.
+ If specified, ``separators`` should be an ``(item_separator, key_separator)``
+ tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and
+ ``(',', ': ')`` otherwise. To get the most compact JSON representation,
+ you should specify ``(',', ':')`` to eliminate whitespace.
``default(obj)`` is a function that should return a serializable version
of obj or raise TypeError. The default simply raises TypeError.
@@ -209,13 +207,12 @@ def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True,
If ``indent`` is a non-negative integer, then JSON array elements and
object members will be pretty-printed with that indent level. An indent
level of 0 will only insert newlines. ``None`` is the most compact
- representation. Since the default item separator is ``', '``, the
- output might include trailing whitespace when ``indent`` is specified.
- You can use ``separators=(',', ': ')`` to avoid this.
+ representation.
- If ``separators`` is an ``(item_separator, dict_separator)`` tuple
- then it will be used instead of the default ``(', ', ': ')`` separators.
- ``(',', ':')`` is the most compact JSON representation.
+ If specified, ``separators`` should be an ``(item_separator, key_separator)``
+ tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and
+ ``(',', ': ')`` otherwise. To get the most compact JSON representation,
+ you should specify ``(',', ':')`` to eliminate whitespace.
``default(obj)`` is a function that should return a serializable version
of obj or raise TypeError. The default simply raises TypeError.
diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py
index 51c3aa7..da7ef9c 100644
--- a/Lib/json/decoder.py
+++ b/Lib/json/decoder.py
@@ -1,9 +1,6 @@
"""Implementation of JSONDecoder
"""
-import binascii
import re
-import sys
-import struct
from json import scanner
try:
@@ -15,14 +12,9 @@ __all__ = ['JSONDecoder']
FLAGS = re.VERBOSE | re.MULTILINE | re.DOTALL
-def _floatconstants():
- _BYTES = binascii.unhexlify(b'7FF80000000000007FF0000000000000')
- if sys.byteorder != 'big':
- _BYTES = _BYTES[:8][::-1] + _BYTES[8:][::-1]
- nan, inf = struct.unpack('dd', _BYTES)
- return nan, inf, -inf
-
-NaN, PosInf, NegInf = _floatconstants()
+NaN = float('nan')
+PosInf = float('inf')
+NegInf = float('-inf')
def linecol(doc, pos):
@@ -196,8 +188,8 @@ def JSONObject(s_and_end, strict, scan_once, object_hook, object_pairs_hook,
try:
value, end = scan_once(s, end)
- except StopIteration:
- raise ValueError(errmsg("Expecting object", s, end))
+ except StopIteration as err:
+ raise ValueError(errmsg("Expecting value", s, err.value)) from None
pairs_append((key, value))
try:
nextchar = s[end]
@@ -240,8 +232,8 @@ def JSONArray(s_and_end, scan_once, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
while True:
try:
value, end = scan_once(s, end)
- except StopIteration:
- raise ValueError(errmsg("Expecting object", s, end))
+ except StopIteration as err:
+ raise ValueError(errmsg("Expecting value", s, err.value)) from None
_append(value)
nextchar = s[end:end + 1]
if nextchar in _ws:
@@ -251,7 +243,7 @@ def JSONArray(s_and_end, scan_once, _w=WHITESPACE.match, _ws=WHITESPACE_STR):
if nextchar == ']':
break
elif nextchar != ',':
- raise ValueError(errmsg("Expecting ',' delimiter", s, end))
+ raise ValueError(errmsg("Expecting ',' delimiter", s, end - 1))
try:
if s[end] in _ws:
end += 1
@@ -366,6 +358,6 @@ class JSONDecoder(object):
"""
try:
obj, end = self.scan_once(s, idx)
- except StopIteration:
- raise ValueError("No JSON object could be decoded")
+ except StopIteration as err:
+ raise ValueError(errmsg("Expecting value", s, err.value)) from None
return obj, end
diff --git a/Lib/json/encoder.py b/Lib/json/encoder.py
index 1d8b20c..39b550d 100644
--- a/Lib/json/encoder.py
+++ b/Lib/json/encoder.py
@@ -125,14 +125,12 @@ class JSONEncoder(object):
If indent is a non-negative integer, then JSON array
elements and object members will be pretty-printed with that
indent level. An indent level of 0 will only insert newlines.
- None is the most compact representation. Since the default
- item separator is ', ', the output might include trailing
- whitespace when indent is specified. You can use
- separators=(',', ': ') to avoid this.
+ None is the most compact representation.
- If specified, separators should be a (item_separator, key_separator)
- tuple. The default is (', ', ': '). To get the most compact JSON
- representation you should specify (',', ':') to eliminate whitespace.
+ If specified, separators should be an (item_separator, key_separator)
+ tuple. The default is (', ', ': ') if *indent* is ``None`` and
+ (',', ': ') otherwise. To get the most compact JSON representation,
+ you should specify (',', ':') to eliminate whitespace.
If specified, default is a function that gets called for objects
that can't otherwise be serialized. It should return a JSON encodable
@@ -148,6 +146,8 @@ class JSONEncoder(object):
self.indent = indent
if separators is not None:
self.item_separator, self.key_separator = separators
+ elif indent is not None:
+ self.item_separator = ','
if default is not None:
self.default = default
@@ -309,8 +309,7 @@ def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
chunks = _iterencode_dict(value, _current_indent_level)
else:
chunks = _iterencode(value, _current_indent_level)
- for chunk in chunks:
- yield chunk
+ yield from chunks
if newline_indent is not None:
_current_indent_level -= 1
yield '\n' + _indent * _current_indent_level
@@ -385,8 +384,7 @@ def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
chunks = _iterencode_dict(value, _current_indent_level)
else:
chunks = _iterencode(value, _current_indent_level)
- for chunk in chunks:
- yield chunk
+ yield from chunks
if newline_indent is not None:
_current_indent_level -= 1
yield '\n' + _indent * _current_indent_level
@@ -408,11 +406,9 @@ def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
elif isinstance(o, float):
yield _floatstr(o)
elif isinstance(o, (list, tuple)):
- for chunk in _iterencode_list(o, _current_indent_level):
- yield chunk
+ yield from _iterencode_list(o, _current_indent_level)
elif isinstance(o, dict):
- for chunk in _iterencode_dict(o, _current_indent_level):
- yield chunk
+ yield from _iterencode_dict(o, _current_indent_level)
else:
if markers is not None:
markerid = id(o)
@@ -420,8 +416,7 @@ def _make_iterencode(markers, _default, _encoder, _indent, _floatstr,
raise ValueError("Circular reference detected")
markers[markerid] = o
o = _default(o)
- for chunk in _iterencode(o, _current_indent_level):
- yield chunk
+ yield from _iterencode(o, _current_indent_level)
if markers is not None:
del markers[markerid]
return _iterencode
diff --git a/Lib/json/scanner.py b/Lib/json/scanner.py
index 23eef61..86426cd 100644
--- a/Lib/json/scanner.py
+++ b/Lib/json/scanner.py
@@ -29,7 +29,7 @@ def py_make_scanner(context):
try:
nextchar = string[idx]
except IndexError:
- raise StopIteration
+ raise StopIteration(idx)
if nextchar == '"':
return parse_string(string, idx + 1, strict)
@@ -60,7 +60,7 @@ def py_make_scanner(context):
elif nextchar == '-' and string[idx:idx + 9] == '-Infinity':
return parse_constant('-Infinity'), idx + 9
else:
- raise StopIteration
+ raise StopIteration(idx)
def scan_once(string, idx):
try:
diff --git a/Lib/json/tool.py b/Lib/json/tool.py
index ecf9c47..7db4528 100644
--- a/Lib/json/tool.py
+++ b/Lib/json/tool.py
@@ -31,8 +31,7 @@ def main():
except ValueError as e:
raise SystemExit(e)
with outfile:
- json.dump(obj, outfile, sort_keys=True,
- indent=4, separators=(',', ': '))
+ json.dump(obj, outfile, sort_keys=True, indent=4)
outfile.write('\n')
generated by cgit v0.12 at 2025-01-17 16:59:53 (GMT)