From 9fc6b6c4536417283c6f52b6dfb4c82afb372448 Mon Sep 17 00:00:00 2001 From: Antoine Pitrou Date: Tue, 21 Dec 2010 18:56:38 +0000 Subject: [PATCH] Merged revisions 87421 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ........ r87421 | antoine.pitrou | 2010-12-21 19:49:01 +0100 (mar., 21 déc. 2010) | 4 lines Suggest sys.maxsize as a reliable way to know whether the interpreter is 64-bit. (part of #10735) ........ --- Doc/library/platform.rst | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Doc/library/platform.rst b/Doc/library/platform.rst index f4ef6805a10..56518f79e84 100644 --- a/Doc/library/platform.rst +++ b/Doc/library/platform.rst @@ -36,6 +36,16 @@ Cross Platform and then only if the executable points to the Python interpreter. Reasonable defaults are used when the above needs are not met. + .. note:: + + On Mac OS X (and perhaps other platforms), executable files may be + universal files containing multiple architectures. + + To get at the "64-bitness" of the current interpreter, it is more + reliable to query the :attr:`sys.maxsize` attribute:: + + is_64bits = sys.maxsize > 2**32 + .. function:: machine() @@ -186,7 +196,7 @@ Windows Platform .. note:: - Note: this function works best with Mark Hammond's + This function works best with Mark Hammond's :mod:`win32all` package installed, but also on Python 2.3 and later (support for this was added in Python 2.6). It obviously only runs on Win32 compatible platforms.