Merged revisions 79294 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79294 | r.david.murray | 2010-03-22 11:55:09 -0400 (Mon, 22 Mar 2010) | 4 lines

  Issue #7860: platform.uname now reports the correct 'machine' type
  when Python is running in WOW64 mode on 64 bit Windows.  Patch by
  Brian Curtin.
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diff --git a/Lib/platform.py b/Lib/platform.py
index 7d39250..aa256dc 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -1103,7 +1103,11 @@
             # http://support.microsoft.com/kb/888731 and
             # http://www.geocities.com/rick_lively/MANUALS/ENV/MSWIN/PROCESSI.HTM
             if not machine:
-                machine = os.environ.get('PROCESSOR_ARCHITECTURE', '')
+                # WOW64 processes mask the native architecture
+                if "PROCESSOR_ARCHITEW6432" in os.environ:
+                    machine = os.environ.get("PROCESSOR_ARCHITEW6432", '')
+                else:
+                    machine = os.environ.get('PROCESSOR_ARCHITECTURE', '')
             if not processor:
                 processor = os.environ.get('PROCESSOR_IDENTIFIER', machine)