[Python-Dev] [RELEASED] Python 2.7.5 (original) (raw)

Benjamin Peterson benjamin at python.org
Mon May 20 00:56:51 CEST 2013

2013/5/19 Pierre Rouleau <prouleau001 at gmail.com>:

Hi all,

I just installed Python 2.7.5 64-bit () on a Windows 7 64-bit OS computer. When I evaluate sys.maxint I don't get what I was expected. I get this: Python 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)] on win32 Type "copyright", "credits" or "license()" for more information.

import sys sys.maxint 2147483647 import platform platform.machine() 'AMD64' import os os.environ['PROCESSORARCHITECTURE'] 'AMD64'

Should I not get a 64-bit integer maxint (9223372036854775807) for sys.maxint ?

This is correct. sizeof(long) != sizeof(void *) on Win64, and size Python int's are platform longs, you get the maxsize of a 32-bit int. Check sys.maxsize for comparison.

-- Regards, Benjamin

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