bpo-35975: Only use cf_feature_version if PyCF_ONLY_AST in cf_flags (#21021)
diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py
index 73e167a..fa5ca1c 100644
--- a/Lib/test/test_capi.py
+++ b/Lib/test/test_capi.py
@@ -627,6 +627,27 @@
self.assertNotEqual(pickle.load(f), id(sys.modules))
self.assertNotEqual(pickle.load(f), id(builtins))
+ def test_subinterps_recent_language_features(self):
+ r, w = os.pipe()
+ code = """if 1:
+ import pickle
+ with open({:d}, "wb") as f:
+
+ @(lambda x:x) # Py 3.9
+ def noop(x): return x
+
+ a = (b := f'1{{2}}3') + noop('x') # Py 3.8 (:=) / 3.6 (f'')
+
+ async def foo(arg): return await arg # Py 3.5
+
+ pickle.dump(dict(a=a, b=b), f)
+ """.format(w)
+
+ with open(r, "rb") as f:
+ ret = support.run_in_subinterp(code)
+ self.assertEqual(ret, 0)
+ self.assertEqual(pickle.load(f), {'a': '123x', 'b': '123'})
+
def test_mutate_exception(self):
"""
Exceptions saved in global module state get shared between