[Python-checkins] cpython: asynchat speedup improvement: avoid to use a function mimicking old buffer()

[giampaolo.rodola]

http://hg.python.org/cpython/rev/ab959a5b04a0
changeset:   78408:ab959a5b04a0
user:        Giampaolo Rodola' <g.rodola at gmail.com>
date:        Sat Aug 04 14:38:16 2012 +0200
summary:
  asynchat speedup improvement: avoid to use a function mimicking old buffer() builtin behavior; instead use plain slicing

files:
  Lib/asynchat.py |  14 +-------------
  1 files changed, 1 insertions(+), 13 deletions(-)


diff --git a/Lib/asynchat.py b/Lib/asynchat.py
--- a/Lib/asynchat.py
+++ b/Lib/asynchat.py
@@ -49,18 +49,6 @@
 import asyncore
 from collections import deque
 
-def buffer(obj, start=None, stop=None):
-    # if memoryview objects gain slicing semantics,
-    # this function will change for the better
-    # memoryview used for the TypeError
-    memoryview(obj)
-    if start == None:
-        start = 0
-    if stop == None:
-        stop = len(obj)
-    x = obj[start:stop]
-    ## print("buffer type is: %s"%(type(x),))
-    return x
 
 class async_chat (asyncore.dispatcher):
     """This is an abstract class.  You must derive from this class, and add
@@ -240,7 +228,7 @@
             # handle classic producer behavior
             obs = self.ac_out_buffer_size
             try:
-                data = buffer(first, 0, obs)
+                data = first[:obs]
             except TypeError:
                 data = first.more()
                 if data:

-- 
Repository URL: http://hg.python.org/cpython