fix: only fix cProfile

Signed-off-by: yihong0618 <zouzou0208@gmail.com>

Author: yihong0618

Lib/profile.py

@@ -604,14 +604,13 @@ def main():
                                                   origin=progname)
             module = importlib.util.module_from_spec(spec)
             sys.modules['__main__'] = module
-            globs = module.__dict__
-            globs.update({
-                '__spec__': None,
+            globs = {
+                '__spec__': spec,
                 '__file__': spec.origin,
                 '__name__': spec.name,
                 '__package__': None,
                 '__cached__': None,
-            })
+            }
         try:
             runctx(code, globs, None, options.outfile, options.sort)
         except BrokenPipeError as exc:

Lib/test/test_profile.py

@@ -4,12 +4,10 @@
 import pstats
 import unittest
 import os
-import subprocess
 import warnings
 from difflib import unified_diff
 from io import StringIO
 from test.support.os_helper import TESTFN, unlink, temp_dir, change_cwd
-from test.support import script_helper, os_helper, SHORT_TIMEOUT
 from contextlib import contextmanager, redirect_stdout
 
 # Suppress deprecation warning for profile module (PEP 799)
@@ -136,41 +134,6 @@ def test_output_file_when_changing_directory(self):
 
             self.assertTrue(os.path.exists('out.pstats'))
 
-    @unittest.skipIf(sys.platform == 'win32',
-                     'Profiler with multiprocessing can not run on win32')
-    def test_profile_multiprocessing(self):
-        test_script = '''
-import multiprocessing
-def worker_proc(x):
-    return x * 42
-
-def main_proc():
-    p = multiprocessing.Process(target=worker_proc, args=(10,))
-    p.start()
-    p.join()
-
-if __name__ == "__main__":
-    main_proc()
-'''
-        with os_helper.temp_dir() as temp_dir:
-            script = script_helper.make_script(
-                temp_dir, 'test_profile_multiprocessing', test_script
-            )
-            with script_helper.spawn_python(
-                "-m", self.profilermodule.__name__,
-                script,
-                stderr=subprocess.PIPE,
-                text=True
-            ) as proc:
-                proc.wait(timeout=SHORT_TIMEOUT)
-                stdout = proc.stdout.read()
-                stderr = proc.stderr.read()
-
-        self.assertIn("main_proc", stdout)
-        self.assertNotIn("Can't pickle", stderr)
-        self.assertNotIn("ModuleSpec", stderr)
-        self.assertEqual(proc.returncode, 0)
-
 
 def regenerate_expected_output(filename, cls):
     filename = filename.rstrip('co')

Misc/NEWS.d/next/Library/2025-11-23-19-06-41.gh-issue-140729.bk_HDs.rst

@@ -1,2 +1 @@
-Set ``__main__.__spec__`` to ``None`` when running a script with
-:mod:`profile` or :mod:`cProfile`
+Set ``__main__.__spec__`` to ``None`` when running a script with :mod:`cProfile`