[Python-checkins] cpython: Cleanup json decoder: float() has builtin support of nan, +inf, -inf since
victor.stinner
python-checkins at python.org
Thu Nov 29 00:13:22 CET 2012
http://hg.python.org/cpython/rev/402bae9f8fe5
changeset: 80633:402bae9f8fe5
user: Victor Stinner <victor.stinner at gmail.com>
date: Thu Nov 29 00:12:40 2012 +0100
summary:
Cleanup json decoder: float() has builtin support of nan, +inf, -inf since Python 2.6
files:
Lib/json/decoder.py | 14 +++-----------
1 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py
--- 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 @@
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):
--
Repository URL: http://hg.python.org/cpython
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