Revert "gh-129098: avoid using content of _pyrepl/__main__.py when reporting tracebacks (#130721)"

This reverts commit 492e3e6.

Author: picnixz

Lib/_pyrepl/__main__.py

@@ -1,10 +1,6 @@
 # Important: don't add things to this module, as they will end up in the REPL's
 # default globals.  Use _pyrepl.main instead.
 
-# Avoid caching this file by linecache and incorrectly report tracebacks.
-# See https://github.com/python/cpython/issues/129098.
-__spec__ = __loader__ = None
-
 if __name__ == "__main__":
     from .main import interactive_console as __pyrepl_interactive_console
     __pyrepl_interactive_console()

Lib/test/test_pyrepl/test_pyrepl.py

@@ -11,9 +11,9 @@
 from unittest import TestCase, skipUnless, skipIf
 from unittest.mock import patch
 from test.support import force_not_colorized, make_clean_env
-from test.support import SHORT_TIMEOUT, STDLIB_DIR
+from test.support import SHORT_TIMEOUT
 from test.support.import_helper import import_module
-from test.support.os_helper import EnvironmentVarGuard, unlink
+from test.support.os_helper import unlink
 
 from .support import (
     FakeConsole,
@@ -1416,31 +1416,6 @@ def test_python_basic_repl(self):
         self.assertNotIn("Exception", output)
         self.assertNotIn("Traceback", output)
 
-    @force_not_colorized
-    def test_no_pyrepl_source_in_exc(self):
-        # Avoid using _pyrepl/__main__.py in traceback reports
-        # See https://github.com/python/cpython/issues/129098.
-        pyrepl_main_file = os.path.join(STDLIB_DIR, "_pyrepl", "__main__.py")
-        self.assertTrue(os.path.exists(pyrepl_main_file), pyrepl_main_file)
-        with open(pyrepl_main_file) as fp:
-            excluded_lines = fp.readlines()
-        excluded_lines = list(filter(None, map(str.strip, excluded_lines)))
-
-        for filename in ['?', 'unknown-filename', '<foo>', '<...>']:
-            self._test_no_pyrepl_source_in_exc(filename, excluded_lines)
-
-    def _test_no_pyrepl_source_in_exc(self, filename, excluded_lines):
-        with EnvironmentVarGuard() as env, self.subTest(filename=filename):
-            env.unset("PYTHON_BASIC_REPL")
-            commands = (f"eval(compile('spam', {filename!r}, 'eval'))\n"
-                        f"exit()\n")
-            output, _ = self.run_repl(commands, env=env)
-            self.assertIn("Traceback (most recent call last)", output)
-            self.assertIn("NameError: name 'spam' is not defined", output)
-            for line in excluded_lines:
-                with self.subTest(line=line):
-                    self.assertNotIn(line, output)
-
     @force_not_colorized
     def test_bad_sys_excepthook_doesnt_crash_pyrepl(self):
         env = os.environ.copy()