From 471870fc504b0d69c767b188f180b17248be6998 Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Fri, 16 Apr 2021 11:27:00 +0200 Subject: [PATCH] bpo-43844: Fix PendingDeprecationWarning in test_lib2to3 (GH-25407) --- Lib/lib2to3/tests/test_parser.py | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py index d5db66b9b1e..1aba0e88945 100644 --- a/Lib/lib2to3/tests/test_parser.py +++ b/Lib/lib2to3/tests/test_parser.py @@ -84,12 +84,16 @@ def test_load_grammar_from_subprocess(self): # different hash randomization seed. sub_env = dict(os.environ) sub_env['PYTHONHASHSEED'] = 'random' - subprocess.check_call( - [sys.executable, '-c', """ + code = """ from lib2to3.pgen2 import driver as pgen2_driver pgen2_driver.load_grammar(%r, save=True, force=True) - """ % (grammar_sub_copy,)], - env=sub_env) + """ % (grammar_sub_copy,) + msg = ("lib2to3 package is deprecated and may not be able " + "to parse Python 3.10+") + cmd = [sys.executable, + f'-Wignore:{msg}:PendingDeprecationWarning', + '-c', code] + subprocess.check_call( cmd, env=sub_env) self.assertTrue(os.path.exists(pickle_sub_name)) with open(pickle_name, 'rb') as pickle_f_1, \