[pypy-commit] pypy default: Fix the complexity in cPickle.py too (there's a mostly-duplicate?)

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r81580:256ca06a4fb1
Date: 2016-01-05 13:50 +0000
http://bitbucket.org/pypy/pypy/changeset/256ca06a4fb1/

Log:	Fix the complexity in cPickle.py too (there's a mostly-duplicate?)

diff --git a/lib_pypy/cPickle.py b/lib_pypy/cPickle.py
--- a/lib_pypy/cPickle.py
+++ b/lib_pypy/cPickle.py
@@ -559,6 +559,7 @@
 
 def decode_long(data):
     r"""Decode a long from a two's complement little-endian binary string.
+    This is overriden on PyPy by a RPython version that has linear complexity.
 
     >>> decode_long('')
     0L
@@ -592,6 +593,11 @@
         n -= 1L << (nbytes << 3)
     return n
 
+try:
+    from __pypy__ import decode_long
+except ImportError:
+    pass
+
 def load(f):
     return Unpickler(f).load()