diff -Naur Python-3.5.2.orig/configure.ac Python-3.5.2.new/configure.ac
--- Python-3.5.2.orig/configure.ac	2018-02-14 17:15:38.443097227 +0300
+++ Python-3.5.2.new/configure.ac	2018-02-14 17:17:45.846734280 +0300
@@ -876,6 +876,41 @@
 AC_SUBST(PLATDIR)
 AC_SUBST(PLATFORM_TRIPLET)
 
+AC_SUBST(ARCH)
+AC_MSG_CHECKING(ARCH)
+ARCH=`uname -m`
+case $ARCH in
+i?86) ARCH=i386;;
+esac
+AC_MSG_RESULT($ARCH)
+
+AC_SUBST(LIB)
+AC_MSG_CHECKING(LIB)
+case $ac_sys_system in
+Linux*)
+  # Test if the compiler is 64bit
+  echo 'int i;' > conftest.$ac_ext
+  python_cv_cc_64bit_output=no
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+    *"ELF 64"*)
+      python_cv_cc_64bit_output=yes
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+case $ARCH:$python_cv_cc_64bit_output in
+ppc64:yes | powerpc64:yes | s390x:yes | sparc64:yes | x86_64:yes)
+  LIB="lib64"
+  ;;
+*:*)
+  LIB="lib"
+  ;;
+esac
+AC_MSG_RESULT($LIB)
 
 AC_MSG_CHECKING([for -Wl,--no-as-needed])
 save_LDFLAGS="$LDFLAGS"
diff -Naur Python-3.5.2.orig/Include/pythonrun.h Python-3.5.2.new/Include/pythonrun.h
--- Python-3.5.2.orig/Include/pythonrun.h	2018-02-14 17:15:38.393097369 +0300
+++ Python-3.5.2.new/Include/pythonrun.h	2018-02-14 17:17:45.844734286 +0300
@@ -23,6 +23,9 @@
 } PyCompilerFlags;
 #endif
 
+PyAPI_FUNC(const char *) Py_GetArch(void);
+PyAPI_FUNC(const char *) Py_GetLib(void);
+
 #ifndef Py_LIMITED_API
 PyAPI_FUNC(int) PyRun_SimpleStringFlags(const char *, PyCompilerFlags *);
 PyAPI_FUNC(int) PyRun_AnyFileFlags(FILE *, const char *, PyCompilerFlags *);
diff -Naur Python-3.5.2.orig/Lib/distutils/command/install.py Python-3.5.2.new/Lib/distutils/command/install.py
--- Python-3.5.2.orig/Lib/distutils/command/install.py	2018-02-14 17:15:38.465097164 +0300
+++ Python-3.5.2.new/Lib/distutils/command/install.py	2018-02-14 17:17:45.844734286 +0300
@@ -19,6 +19,8 @@
 from site import USER_SITE
 HAS_USER_SITE = True
 
+libname = sys.lib
+
 WINDOWS_SCHEME = {
     'purelib': '$base/Lib/site-packages',
     'platlib': '$base/Lib/site-packages',
@@ -30,7 +32,7 @@
 INSTALL_SCHEMES = {
     'unix_prefix': {
         'purelib': '$base/lib/python$py_version_short/site-packages',
-        'platlib': '$platbase/lib/python$py_version_short/site-packages',
+        'platlib': '$platbase/'+libname+'/python$py_version_short/site-packages',
         'headers': '$base/include/python$py_version_short$abiflags/$dist_name',
         'scripts': '$base/bin',
         'data'   : '$base',
diff -Naur Python-3.5.2.orig/Lib/distutils/sysconfig.py Python-3.5.2.new/Lib/distutils/sysconfig.py
--- Python-3.5.2.orig/Lib/distutils/sysconfig.py	2018-02-14 17:15:38.465097164 +0300
+++ Python-3.5.2.new/Lib/distutils/sysconfig.py	2018-02-15 13:37:37.327823379 +0300
@@ -132,8 +132,12 @@
             prefix = plat_specific and EXEC_PREFIX or PREFIX
 
     if os.name == "posix":
+        if plat_specific:
+            lib = sys.lib
+        else:
+            lib = 'lib'
         libpython = os.path.join(prefix,
-                                 "lib", "python" + get_python_version())
+                                 lib, "python" + get_python_version())
         if standard_lib:
             return libpython
         else:
diff -Naur Python-3.5.2.orig/Lib/pydoc.py Python-3.5.2.new/Lib/pydoc.py
--- Python-3.5.2.orig/Lib/pydoc.py	2018-02-14 17:15:38.463097169 +0300
+++ Python-3.5.2.new/Lib/pydoc.py	2018-02-14 17:17:45.845734283 +0300
@@ -384,7 +384,7 @@
     docmodule = docclass = docroutine = docother = docproperty = docdata = fail
 
     def getdocloc(self, object,
-                  basedir=os.path.join(sys.base_exec_prefix, "lib",
+                  basedir=os.path.join(sys.base_exec_prefix, sys.lib,
                                        "python%d.%d" %  sys.version_info[:2])):
         """Return the location of module docs or None"""
 
diff -Naur Python-3.5.2.orig/Lib/site.py Python-3.5.2.new/Lib/site.py
--- Python-3.5.2.orig/Lib/site.py	2018-02-14 17:15:38.455097192 +0300
+++ Python-3.5.2.new/Lib/site.py	2018-02-15 12:44:40.357844949 +0300
@@ -303,12 +303,16 @@
         seen.add(prefix)
 
         if os.sep == '/':
-            sitepackages.append(os.path.join(prefix, "lib",
+            sitepackages.append(os.path.join(prefix, sys.lib,
                                         "python" + sys.version[:3],
                                         "site-packages"))
+            if sys.lib != 'lib':
+                    sitepackages.append(os.path.join(prefix, 'lib',
+                                                     "python" + sys.version[:3],
+                                                     "site-packages"))
         else:
             sitepackages.append(prefix)
-            sitepackages.append(os.path.join(prefix, "lib", "site-packages"))
+            sitepackages.append(os.path.join(prefix, sys.lib, "site-packages"))
         if sys.platform == "darwin":
             # for framework builds *only* we add the standard Apple
             # locations.
diff -Naur Python-3.5.2.orig/Lib/sysconfig.py Python-3.5.2.new/Lib/sysconfig.py
--- Python-3.5.2.orig/Lib/sysconfig.py	2018-02-14 17:15:38.462097172 +0300
+++ Python-3.5.2.new/Lib/sysconfig.py	2018-02-14 17:17:45.845734283 +0300
@@ -20,10 +20,10 @@
 
 _INSTALL_SCHEMES = {
     'posix_prefix': {
-        'stdlib': '{installed_base}/lib/python{py_version_short}',
-        'platstdlib': '{platbase}/lib/python{py_version_short}',
+        'stdlib': '{installed_base}/'+sys.lib+'/python{py_version_short}',
+        'platstdlib': '{platbase}/'+sys.lib+'/python{py_version_short}',
         'purelib': '{base}/lib/python{py_version_short}/site-packages',
-        'platlib': '{platbase}/lib/python{py_version_short}/site-packages',
+        'platlib': '{platbase}/'+sys.lib+'/python{py_version_short}/site-packages',
         'include':
             '{installed_base}/include/python{py_version_short}{abiflags}',
         'platinclude':
@@ -32,10 +32,10 @@
         'data': '{base}',
         },
     'posix_home': {
-        'stdlib': '{installed_base}/lib/python',
-        'platstdlib': '{base}/lib/python',
+        'stdlib': '{installed_base}/'+sys.lib+'/python',
+        'platstdlib': '{base}/'+sys.lib+'/python',
         'purelib': '{base}/lib/python',
-        'platlib': '{base}/lib/python',
+        'platlib': '{base}/'+sys.lib+'/python',
         'include': '{installed_base}/include/python',
         'platinclude': '{installed_base}/include/python',
         'scripts': '{base}/bin',
@@ -61,10 +61,10 @@
         'data': '{userbase}',
         },
     'posix_user': {
-        'stdlib': '{userbase}/lib/python{py_version_short}',
-        'platstdlib': '{userbase}/lib/python{py_version_short}',
+        'stdlib': '{userbase}/'+sys.lib+'/python{py_version_short}',
+        'platstdlib': '{userbase}/'+sys.lib+'/python{py_version_short}',
         'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
-        'platlib': '{userbase}/lib/python{py_version_short}/site-packages',
+        'platlib': '{userbase}/'+sys.lib+'/python{py_version_short}/site-packages',
         'include': '{userbase}/include/python{py_version_short}',
         'scripts': '{userbase}/bin',
         'data': '{userbase}',
diff -Naur Python-3.5.2.orig/Lib/trace.py Python-3.5.2.new/Lib/trace.py
--- Python-3.5.2.orig/Lib/trace.py	2018-02-14 17:15:38.461097175 +0300
+++ Python-3.5.2.new/Lib/trace.py	2018-02-14 17:17:45.845734283 +0300
@@ -749,10 +749,10 @@
                 # should I also call expanduser? (after all, could use $HOME)
 
                 s = s.replace("$prefix",
-                              os.path.join(sys.base_prefix, "lib",
+                              os.path.join(sys.base_prefix, sys.lib,
                                            "python" + sys.version[:3]))
                 s = s.replace("$exec_prefix",
-                              os.path.join(sys.base_exec_prefix, "lib",
+                              os.path.join(sys.base_exec_prefix, sys.lib,
                                            "python" + sys.version[:3]))
                 s = os.path.normpath(s)
                 ignore_dirs.append(s)
diff -Naur Python-3.5.2.orig/Makefile.pre.in Python-3.5.2.new/Makefile.pre.in
--- Python-3.5.2.orig/Makefile.pre.in	2018-02-14 17:15:38.394097367 +0300
+++ Python-3.5.2.new/Makefile.pre.in	2018-02-14 17:17:45.845734283 +0300
@@ -106,6 +106,8 @@
 
 # Machine-dependent subdirectories
 MACHDEP=	@MACHDEP@
+LIB=		@LIB@
+ARCH=		@ARCH@
 
 # Multiarch directory (may be empty)
 MULTIARCH=	@MULTIARCH@
@@ -125,7 +127,7 @@
 MANDIR=		@mandir@
 INCLUDEDIR=	@includedir@
 CONFINCLUDEDIR=	$(exec_prefix)/include
-SCRIPTDIR=	$(prefix)/lib
+SCRIPTDIR=	@libdir@
 ABIFLAGS=	@ABIFLAGS@
 
 # Detailed destination directories
@@ -753,6 +755,7 @@
 		-DEXEC_PREFIX='"$(exec_prefix)"' \
 		-DVERSION='"$(VERSION)"' \
 		-DVPATH='"$(VPATH)"' \
+		-DARCH='"$(ARCH)"' -DLIB='"$(LIB)"' \
 		-o $@ $(srcdir)/Modules/getpath.c
 
 Programs/python.o: $(srcdir)/Programs/python.c
@@ -833,7 +836,7 @@
 Python/compile.o Python/symtable.o Python/ast.o: $(GRAMMAR_H) $(AST_H)
 
 Python/getplatform.o: $(srcdir)/Python/getplatform.c
-		$(CC) -c $(PY_CORE_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -o $@ $(srcdir)/Python/getplatform.c
+		$(CC) -c $(PY_CORE_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -DARCH='"$(ARCH)"' -DLIB='"$(LIB)"' -o $@ $(srcdir)/Python/getplatform.c
 
 Python/importdl.o: $(srcdir)/Python/importdl.c
 		$(CC) -c $(PY_CORE_CFLAGS) -I$(DLINCLDIR) -o $@ $(srcdir)/Python/importdl.c
diff -Naur Python-3.5.2.orig/Modules/getpath.c Python-3.5.2.new/Modules/getpath.c
--- Python-3.5.2.orig/Modules/getpath.c	2018-02-14 17:15:38.427097272 +0300
+++ Python-3.5.2.new/Modules/getpath.c	2018-02-14 17:17:45.845734283 +0300
@@ -105,6 +105,13 @@
 #error "PREFIX, EXEC_PREFIX, VERSION, and VPATH must be constant defined"
 #endif
 
+#define LIB_PYTHON LIB "/python" VERSION
+
+#ifndef PYTHONPATH
+#define PYTHONPATH PREFIX "/" LIB_PYTHON ":" \
+        EXEC_PREFIX "/" LIB_PYTHON "/lib-dynload"
+#endif
+
 #ifndef LANDMARK
 #define LANDMARK L"os.py"
 #endif
@@ -113,6 +120,7 @@
 static wchar_t exec_prefix[MAXPATHLEN+1];
 static wchar_t progpath[MAXPATHLEN+1];
 static wchar_t *module_search_path = NULL;
+static wchar_t *lib_python = L"" LIB_PYTHON;
 
 /* Get file status. Encode the path to the locale encoding. */
 
@@ -494,7 +502,7 @@
     _pythonpath = Py_DecodeLocale(PYTHONPATH, NULL);
     _prefix = Py_DecodeLocale(PREFIX, NULL);
     _exec_prefix = Py_DecodeLocale(EXEC_PREFIX, NULL);
-    lib_python = Py_DecodeLocale("lib/python" VERSION, NULL);
+    lib_python = Py_DecodeLocale(LIB_PYTHON, NULL);
 
     if (!_pythonpath || !_prefix || !_exec_prefix || !lib_python) {
         Py_FatalError(
diff -Naur Python-3.5.2.orig/Python/getplatform.c Python-3.5.2.new/Python/getplatform.c
--- Python-3.5.2.orig/Python/getplatform.c	2018-02-14 17:15:38.447097215 +0300
+++ Python-3.5.2.new/Python/getplatform.c	2018-02-14 17:17:45.845734283 +0300
@@ -10,3 +10,23 @@
 {
 	return PLATFORM;
 }
+
+#ifndef ARCH
+#define ARCH "unknown"
+#endif
+
+const char *
+Py_GetArch(void)
+{
+	return ARCH;
+}
+
+#ifndef LIB
+#define LIB "lib"
+#endif
+
+const char *
+Py_GetLib(void)
+{
+	return LIB;
+}
diff -Naur Python-3.5.2.orig/Python/sysmodule.c Python-3.5.2.new/Python/sysmodule.c
--- Python-3.5.2.orig/Python/sysmodule.c	2018-02-14 17:15:38.447097215 +0300
+++ Python-3.5.2.new/Python/sysmodule.c	2018-02-14 17:17:45.845734283 +0300
@@ -1790,6 +1790,10 @@
                         PyUnicode_FromString(Py_GetCopyright()));
     SET_SYS_FROM_STRING("platform",
                         PyUnicode_FromString(Py_GetPlatform()));
+    SET_SYS_FROM_STRING("arch",
+                        PyUnicode_FromString(Py_GetArch()));
+    SET_SYS_FROM_STRING("lib",
+                        PyUnicode_FromString(Py_GetLib()));
     SET_SYS_FROM_STRING("executable",
                         PyUnicode_FromWideChar(
                                Py_GetProgramFullPath(), -1));
diff -Naur Python-3.5.2.orig/setup.py Python-3.5.2.new/setup.py
--- Python-3.5.2.orig/setup.py	2018-02-14 17:15:38.447097215 +0300
+++ Python-3.5.2.new/setup.py	2018-02-14 17:17:45.846734280 +0300
@@ -492,7 +492,7 @@
         # directories (i.e. '.' and 'Include') must be first.  See issue
         # 10520.
         if not cross_compiling:
-            add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
+            add_dir_to_list(self.compiler.library_dirs, os.path.join('/usr/local', sys.lib))
             add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
         # only change this for cross builds for 3.3, issues on Mageia
         if cross_compiling:
@@ -549,8 +549,7 @@
         # be assumed that no additional -I,-L directives are needed.
         if not cross_compiling:
             lib_dirs = self.compiler.library_dirs + [
-                '/lib64', '/usr/lib64',
-                '/lib', '/usr/lib',
+                '/' + sys.lib, '/usr/' + sys.lib,
                 ]
             inc_dirs = self.compiler.include_dirs + ['/usr/include']
         else:
@@ -780,11 +779,11 @@
             elif curses_library:
                 readline_libs.append(curses_library)
             elif self.compiler.find_library_file(lib_dirs +
-                                                     ['/usr/lib/termcap'],
+                                                     ['/usr/'+sys.lib+'/termcap'],
                                                      'termcap'):
                 readline_libs.append('termcap')
             exts.append( Extension('readline', ['readline.c'],
-                                   library_dirs=['/usr/lib/termcap'],
+                                   library_dirs=['/usr/'+sys.lib+'/termcap'],
                                    extra_link_args=readline_extra_link_args,
                                    libraries=readline_libs) )
         else: