Ezio's review

Author: StanFromIreland

Lib/test/test_unicodedata.py

@@ -974,6 +974,11 @@ def graphemes(*args):
             ['a', '\U0001F1FA\U0001F1E6', '\U0001F1FA\U0001F1F3'])
 
     def test_block(self):
+        self.assertEqual(self.db.block('\u0000'), 'Basic Latin')
+        self.assertEqual(self.db.block('\u0041'), 'Basic Latin')
+        self.assertEqual(self.db.block('\u007F'), 'Basic Latin')
+        self.assertEqual(self.db.block('\u0080'), 'Latin-1 Supplement')
+        self.assertEqual(self.db.block('\u00FF'), 'Latin-1 Supplement')
         self.assertEqual(self.db.block('\u1159'), 'Hangul Jamo')
         self.assertEqual(self.db.block('\u11F9'), 'Hangul Jamo')
         self.assertEqual(self.db.block('\uD788'), 'Hangul Syllables')
@@ -1048,6 +1053,9 @@ def test_block(self):
         # New in 17.0.0
         self.assertEqual(self.db.block('\u1AEB'), 'Combining Diacritical Marks Extended')
         self.assertEqual(self.db.block('\U00011B67'), 'Sharada Supplement')
+        # Unassigned
+        self.assertEqual(self.db.block('\U00100000'), 'Supplementary Private Use Area-B')
+        self.assertEqual(self.db.block('\U0010FFFF'), 'Supplementary Private Use Area-B')
 
         self.assertRaises(TypeError, self.db.block)
         self.assertRaises(TypeError, self.db.block, b'x')

Tools/unicode/makeunicodedata.py

@@ -1237,12 +1237,8 @@ def __init__(self, version, ideograph_check=True):
             # See https://www.unicode.org/versions/Unicode17.0.0/core-spec/chapter-3/#G64189
             self.blocks = []
             for record in UcdFile(BLOCKS, version).records():
-                rng = record[0]
-                name = record[1]
-                if '..' in rng:
-                    s, e = [int(c, 16) for c in rng.split('..')]
-                else:
-                    s = e = int(rng, 16)
+                start_end, name = record
+                s, e = [int(c, 16) for c in start_end.split('..')]
                 self.blocks.append((s, e, name))
             self.blocks.sort()