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-rw-r--r--Lib/lib2to3/tests/test_parser.py12
1 files changed, 8 insertions, 4 deletions
diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py
index d5db66b..1aba0e8 100644
--- a/Lib/lib2to3/tests/test_parser.py
+++ b/Lib/lib2to3/tests/test_parser.py
@@ -84,12 +84,16 @@ class TestPgen2Caching(support.TestCase):
# 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, \