bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670)
* Rename PyConfig.use_peg to _use_peg_parser
* Document PyConfig._use_peg_parser and mark it a deprecated
* Mark -X oldparser option and PYTHONOLDPARSER env var as deprecated
in the documentation.
* Add use_old_parser() and skip_if_new_parser() to test.support
* Remove sys.flags.use_peg: use_old_parser() uses
_testinternalcapi.get_configs() instead.
* Enhance test_embed tests
* subprocess._args_from_interpreter_flags() copies -X oldparser
diff --git a/Lib/test/test_unparse.py b/Lib/test/test_unparse.py
index f5441ed..3bacd67 100644
--- a/Lib/test/test_unparse.py
+++ b/Lib/test/test_unparse.py
@@ -328,7 +328,7 @@
ast.Constant(value=(1, 2, 3), kind=None), "(1, 2, 3)"
)
- @unittest.skipIf(sys.flags.use_peg, "Pegen does not support type annotation yet")
+ @test.support.skip_if_new_parser("Pegen does not support type annotation yet")
def test_function_type(self):
for function_type in (
"() -> int",