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_syntax.py b/Lib/test/test_syntax.py
index 4798f22..aff8dd7 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -678,8 +678,8 @@
def test_assign_call(self):
self._check_error("f() = 1", "assign")
- @unittest.skipIf(sys.flags.use_peg, "Pegen does not produce a specialized error "
- "message yet")
+ @support.skip_if_new_parser("Pegen does not produce a specialized error "
+ "message yet")
def test_assign_del(self):
self._check_error("del f()", "delete")