After discussion on Bug #695958 here is an updated patch. This exposes the triplet on sys.implementation._multiarch
=== modified file 'debian/changelog' --- debian/changelog 2012-12-04 04:36:42 +0000 +++ debian/changelog 2012-12-20 15:04:24 +0000 @@ -1,3 +1,10 @@ +python3.3 (3.3.0-7) experimental; urgency=low + + * debian/patches/sys-implementation.diff: Expose multiarch triplet value + as sys.implementation._multiarch. Closes: #695959 + + -- Barry Warsaw <ba...@python.org> Fri, 14 Dec 2012 15:50:45 -0500 + python3.3 (3.3.0-6) experimental; urgency=low * Don't use xattrs on kfreebsd and the Hurd.
=== modified file 'debian/patches/series.in' --- debian/patches/series.in 2012-12-04 04:36:42 +0000 +++ debian/patches/series.in 2012-12-14 20:52:45 +0000 @@ -54,3 +54,4 @@ ext-no-libpython-link.diff add-python-config-sh.diff kfreebsd-xattrs.diff +sys-implementation.diff === added file 'debian/patches/sys-implementation.diff' --- debian/patches/sys-implementation.diff 1970-01-01 00:00:00 +0000 +++ debian/patches/sys-implementation.diff 2012-12-20 13:00:31 +0000 @@ -0,0 +1,28 @@ +--- a/Makefile.pre.in ++++ b/Makefile.pre.in +@@ -647,6 +647,7 @@ + Python/sysmodule.o: $(srcdir)/Python/sysmodule.c Makefile + $(CC) -c $(PY_CORE_CFLAGS) \ + -DABIFLAGS='"$(ABIFLAGS)"' \ ++ -DMULTIARCH='"$(MULTIARCH)"' \ + -o $@ $(srcdir)/Python/sysmodule.c + + $(IO_OBJS): $(IO_H) +--- a/Python/sysmodule.c ++++ b/Python/sysmodule.c +@@ -1534,6 +1534,15 @@ + if (res < 0) + goto error; + ++ /* For Debian multiarch support. */ ++ value = PyUnicode_FromString(MULTIARCH); ++ if (value == NULL) ++ goto error; ++ res = PyDict_SetItemString(impl_info, "_multiarch", value); ++ Py_DECREF(value); ++ if (res < 0) ++ goto error; ++ + /* dict ready */ + + ns = _PyNamespace_New(impl_info);
