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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Not forgetggin the StringI object in cStringIO.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>IMHO, not accepting buffers by these objects can be consided a bug, that needs fixing.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>K<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> python-dev-bounces+kristjan=ccpgames.com@python.org [mailto:python-dev-bounces+kristjan=ccpgames.com@python.org] <b>On Behalf Of </b>Kristján Valur Jónsson<br><b>Sent:</b> Wednesday, October 27, 2010 10:13<br><b>To:</b> Python-Dev (python-dev@python.org)<br><b>Subject:</b> [Python-Dev] new buffer in python2.7<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=IS>Although 2.7 has the new buffer interface and memoryview objects, these are widely not accepted in the built in modules.<o:p></o:p></span></p><p class=MsoNormal><span lang=IS>Examples are the structmodule, some of the socketmodule apis, structmodule, etc.<o:p></o:p></span></p><p class=MsoNormal><span lang=IS><o:p> </o:p></span></p><p class=MsoNormal><span lang=IS>IMHO this is unfortunate. For example when doign network io, you would want code like this:<o:p></o:p></span></p><p class=MsoNormal><span lang=IS>Buffer = bytearray(10)<o:p></o:p></span></p><p class=MsoNormal><span lang=IS>Socket.recv_into(Buffer)<o:p></o:p></span></p><p class=MsoNormal><span lang=IS>Header = struct.unpack(„i“, memoryview(Buffer)</span>[:4])[0]<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In other words, you want to minimize coping the data around. Currently in 2.7 you have to cast the memoryview to str() which copies the data. In 3.0 you don’t.<o:p></o:p></p><p class=MsoNormal>Is there any chance of getting changes like these in ?<o:p></o:p></p><p class=MsoNormal>(swapping s# for s* in PyArg_ParseTuple in a few strategic places)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My current list of places would be:<o:p></o:p></p><p class=MsoNormal>_strucmodule.c<o:p></o:p></p><p class=MsoNormal>arraymodule.c<o:p></o:p></p><p class=MsoNormal>zlibmodule.c<o:p></o:p></p><p class=MsoNormal>marshal.c<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>audioop.c and imageop.c are probably less important.<o:p></o:p></p><p class=MsoNormal>K<o:p></o:p></p></div></body></html>