gh-127873: Only check `sys.flags.ignore_environment` for `PYTHON*` env vars (#127877)

2 files changed, 1 insertions, 12 deletions

diff --git a/Lib/test/test_pyrepl/support.py b/Lib/test/test_pyrepl/support.py
index 672d4896c92..45e3bf758f1 100644
--- a/Lib/test/test_pyrepl/support.py
+++ b/Lib/test/test_pyrepl/support.py
@@ -101,16 +101,6 @@ handle_events_narrow_console = partial(
 )
 
 
-def make_clean_env() -> dict[str, str]:
-    clean_env = os.environ.copy()
-    for k in clean_env.copy():
-        if k.startswith("PYTHON"):
-            clean_env.pop(k)
-    clean_env.pop("FORCE_COLOR", None)
-    clean_env.pop("NO_COLOR", None)
-    return clean_env
-
-
 class FakeConsole(Console):
     def __init__(self, events, encoding="utf-8") -> None:
         self.events = iter(events)
diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index f29a7ffbd7c..bbe19612437 100644
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -10,7 +10,7 @@ import sys
 import tempfile
 from unittest import TestCase, skipUnless, skipIf
 from unittest.mock import patch
-from test.support import force_not_colorized
+from test.support import force_not_colorized, make_clean_env
 from test.support import SHORT_TIMEOUT
 from test.support.import_helper import import_module
 from test.support.os_helper import unlink
@@ -23,7 +23,6 @@ from .support import (
     multiline_input,
     code_to_events,
     clean_screen,
-    make_clean_env,
 )
 from _pyrepl.console import Event
 from _pyrepl.readline import (ReadlineAlikeReader, ReadlineConfig,