Issue #25111: Fixed comparison of traceback.FrameSummary.

Lib/test/test_traceback.py

@@ -640,7 +640,7 @@ class MiscTracebackCases(unittest.TestCase):
             return traceback.extract_stack()
         result = extract()
         lineno = extract.__code__.co_firstlineno
-        self.assertEqual([tuple(x) for x in result[-2:]], [
+        self.assertEqual(result[-2:], [
             (__file__, lineno+2, 'test_extract_stack', 'result = extract()'),
             (__file__, lineno+1, 'extract', 'return traceback.extract_stack()'),
             ])
@@ -652,10 +652,16 @@ class TestFrame(unittest.TestCase):
         linecache.clearcache()
         linecache.lazycache("f", globals())
         f = traceback.FrameSummary("f", 1, "dummy")
-        self.assertEqual(
-            ("f", 1, "dummy", '"""Test cases for traceback module"""'),
-            tuple(f))
-        self.assertEqual(None, f.locals)
+        self.assertEqual(f,
+            ("f", 1, "dummy", '"""Test cases for traceback module"""'))
+        self.assertEqual(tuple(f),
+            ("f", 1, "dummy", '"""Test cases for traceback module"""'))
+        self.assertEqual(f, traceback.FrameSummary("f", 1, "dummy"))
+        self.assertEqual(f, tuple(f))
+        # Since tuple.__eq__ doesn't support FrameSummary, the equality
+        # operator fallbacks to FrameSummary.__eq__.
+        self.assertEqual(tuple(f), f)
+        self.assertIsNone(f.locals)
 
     def test_lazy_lines(self):
         linecache.clearcache()

Lib/traceback.py

@@ -257,10 +257,14 @@ class FrameSummary:
             dict((k, repr(v)) for k, v in locals.items()) if locals else None
 
     def __eq__(self, other):
-        return (self.filename == other.filename and
-                self.lineno == other.lineno and
-                self.name == other.name and
-                self.locals == other.locals)
+        if isinstance(other, FrameSummary):
+            return (self.filename == other.filename and
+                    self.lineno == other.lineno and
+                    self.name == other.name and
+                    self.locals == other.locals)
+        if isinstance(other, tuple):
+            return (self.filename, self.lineno, self.name, self.line) == other
+        return NotImplemented
 
     def __getitem__(self, pos):
         return (self.filename, self.lineno, self.name, self.line)[pos]

Misc/NEWS

@@ -21,6 +21,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #25111: Fixed comparison of traceback.FrameSummary.
+
 - Issue #25262. Added support for BINBYTES8 opcode in Python implementation of
   unpickler.  Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8
   opcodes no longer silently ignored on 32-bit platforms in C implementation.