gh-104741: Add line number attribute to indentation error exception (#104743)

2 files changed, 11 insertions, 2 deletions

diff --git a/Lib/test/test_tabnanny.py b/Lib/test/test_tabnanny.py
index dac4731..aa70011 100644
--- a/Lib/test/test_tabnanny.py
+++ b/Lib/test/test_tabnanny.py
@@ -317,7 +317,7 @@ class TestCommandLine(TestCase):
         with TemporaryPyFile(SOURCE_CODES["wrong_indented"]) as file_path:
             stderr  = f"{file_path!r}: Token Error: "
             stderr += ('unindent does not match any outer indentation level'
-                    ' (<tokenize>, line 3)')
+                       ' (<string>, line 3)')
             self.validate_cmd(file_path, stderr=stderr, expect_failure=True)
 
     def test_with_error_free_file(self):
diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py
index dda7243..8e7ab3d 100644
--- a/Lib/test/test_tokenize.py
+++ b/Lib/test/test_tokenize.py
@@ -92,9 +92,18 @@ def k(x):
         readline = BytesIO(indent_error_file).readline
         with self.assertRaisesRegex(IndentationError,
                                     "unindent does not match any "
-                                    "outer indentation level"):
+                                    "outer indentation level") as e:
             for tok in tokenize(readline):
                 pass
+        self.assertEqual(e.exception.lineno, 3)
+        self.assertEqual(e.exception.filename, '<string>')
+        self.assertEqual(e.exception.end_lineno, None)
+        self.assertEqual(e.exception.end_offset, None)
+        self.assertEqual(
+            e.exception.msg,
+            'unindent does not match any outer indentation level')
+        self.assertEqual(e.exception.offset, 9)
+        self.assertEqual(e.exception.text, '  x += 5\n')
 
     def test_int(self):
         # Ordinary integers and binary operators