diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 78ed4bbaad4eb6..9dce15ed1529e7 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -14,12 +14,21 @@
from test.support.script_helper import assert_python_ok, assert_python_failure
from test.support import threading_helper
from test.support import import_helper
-from test.support import interpreters
+try:
+ from test.support import interpreters
+except ImportError:
+ interpreters = None
import textwrap
import unittest
import warnings
+def requires_subinterpreters(meth):
+ """Decorator to skip a test if subinterpreters are not supported."""
+ return unittest.skipIf(interpreters is None,
+ 'subinterpreters required')(meth)
+
+
# count the number of test runs, used to create unique
# strings to intern in test_intern()
INTERN_NUMRUNS = 0
@@ -700,6 +709,7 @@ def __hash__(self):
self.assertRaises(TypeError, sys.intern, S("abc"))
+ @requires_subinterpreters
def test_subinterp_intern_dynamically_allocated(self):
global INTERN_NUMRUNS
INTERN_NUMRUNS += 1
@@ -715,6 +725,7 @@ def test_subinterp_intern_dynamically_allocated(self):
assert id(t) != {id(t)}, (id(t), {id(t)})
'''))
+ @requires_subinterpreters
def test_subinterp_intern_statically_allocated(self):
# See Tools/build/generate_global_objects.py for the list
# of strings that are always statically allocated.
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