gh-91827: Add method info_pathlevel() in tkinter (GH-91829)

Lib/tkinter/test/support.py

@@ -101,15 +101,7 @@ def get_tk_patchlevel():
     global _tk_patchlevel
     if _tk_patchlevel is None:
         tcl = tkinter.Tcl()
-        patchlevel = tcl.call('info', 'patchlevel')
-        m = re.fullmatch(r'(\d+)\.(\d+)([ab.])(\d+)', patchlevel)
-        major, minor, releaselevel, serial = m.groups()
-        major, minor, serial = int(major), int(minor), int(serial)
-        releaselevel = {'a': 'alpha', 'b': 'beta', '.': 'final'}[releaselevel]
-        if releaselevel == 'final':
-            _tk_patchlevel = major, minor, serial, releaselevel, 0
-        else:
-            _tk_patchlevel = major, minor, 0, releaselevel, serial
+        _tk_patchlevel = tcl.info_patchlevel()
     return _tk_patchlevel
 
 units = {

Lib/tkinter/test/test_tkinter/test_misc.py

@@ -341,6 +341,35 @@ class MiscTest(AbstractTkTest, unittest.TestCase):
         self.assertEqual(log, [1])
         self.assertTrue(self.root.winfo_exists())
 
+    def test_info_patchlevel(self):
+        vi = self.root.info_patchlevel()
+        f = tkinter.Frame(self.root)
+        self.assertEqual(f.info_patchlevel(), vi)
+        # The following is almost a copy of tests for sys.version_info.
+        self.assertIsInstance(vi[:], tuple)
+        self.assertEqual(len(vi), 5)
+        self.assertIsInstance(vi[0], int)
+        self.assertIsInstance(vi[1], int)
+        self.assertIsInstance(vi[2], int)
+        self.assertIn(vi[3], ("alpha", "beta", "candidate", "final"))
+        self.assertIsInstance(vi[4], int)
+        self.assertIsInstance(vi.major, int)
+        self.assertIsInstance(vi.minor, int)
+        self.assertIsInstance(vi.micro, int)
+        self.assertIn(vi.releaselevel, ("alpha", "beta", "final"))
+        self.assertIsInstance(vi.serial, int)
+        self.assertEqual(vi[0], vi.major)
+        self.assertEqual(vi[1], vi.minor)
+        self.assertEqual(vi[2], vi.micro)
+        self.assertEqual(vi[3], vi.releaselevel)
+        self.assertEqual(vi[4], vi.serial)
+        self.assertTrue(vi > (1,0,0))
+        if vi.releaselevel == 'final':
+            self.assertEqual(vi.serial, 0)
+        else:
+            self.assertEqual(vi.micro, 0)
+        self.assertTrue(str(vi).startswith(f'{vi.major}.{vi.minor}'))
+
 
 class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase):
 

Lib/tkinter/test/widget_tests.py

@@ -517,4 +517,4 @@ def add_standard_options(*source_classes):
 def setUpModule():
     if test.support.verbose:
         tcl = tkinter.Tcl()
-        print('patchlevel =', tcl.call('info', 'patchlevel'))
+        print('patchlevel =', tcl.call('info', 'patchlevel'), flush=True)