gh-102536: Added _architecture field to sys.implementation

Lib/test/test_sys.py

@@ -1032,6 +1032,11 @@ def test_implementation(self):
         self.assertEqual(sys.implementation.name,
                          sys.implementation.name.lower())
 
+        if hasattr(os, 'uname'):
+            import platform
+            self.assertTrue(hasattr(sys.implementation, '_architecture'))
+            self.assertEqual(sys.implementation._architecture, platform.machine())
+
     @test.support.cpython_only
     def test_debugmallocstats(self):
         # Test sys._debugmallocstats()

Misc/NEWS.d/next/Library/2024-09-26-14-43-32.gh-issue-102536.xLiIvi.rst

@@ -0,0 +1,2 @@
+Added ``_architecture`` attribute to :data:`sys.implementation`
+to describe the current system platform.

Python/sysmodule.c

@@ -43,6 +43,9 @@ Data members:
 #  include <unistd.h>             // getpid()
 #endif
 
+#ifdef HAVE_SYS_UTSNAME_H
+#  include <sys/utsname.h>
+#endif /* HAVE_SYS_UTSNAME_H */
 #ifdef MS_WINDOWS
 #  define WIN32_LEAN_AND_MEAN
 #  include <windows.h>
@@ -3322,6 +3325,9 @@ static PyObject *
 make_impl_info(PyObject *version_info)
 {
     int res;
+#if !defined(MS_WINDOWS) && defined(HAVE_SYS_UTSNAME_H)
+    struct utsname u;
+#endif /* !MS_WINDOWS */
     PyObject *impl_info, *value, *ns;
 
     impl_info = PyDict_New();
@@ -3358,6 +3364,19 @@ make_impl_info(PyObject *version_info)
     if (res < 0)
         goto error;
 
+#if !defined(MS_WINDOWS) && defined(HAVE_SYS_UTSNAME_H)
+    res = uname(&u);
+    if (res < 0)
+        goto error;
+    value = PyUnicode_FromString(u.machine);
+    if (value == NULL)
+        goto error;
+    res = PyDict_SetItemString(impl_info, "_architecture", value);
+    Py_DECREF(value);
+    if (res < 0)
+        goto error;
+#endif /* !MS_WINDOWS */
+
 #ifdef MULTIARCH
     value = PyUnicode_FromString(MULTIARCH);
     if (value == NULL)