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_exceptions.py b/Lib/test/test_exceptions.py
index c234c2b..a207fb4 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -178,7 +178,7 @@
s = '''if True:\n print()\n\texec "mixed tabs and spaces"'''
ckmsg(s, "inconsistent use of tabs and spaces in indentation", TabError)
- @unittest.skipIf(sys.flags.use_peg, "Pegen column offsets might be different")
+ @support.skip_if_new_parser("Pegen column offsets might be different")
def testSyntaxErrorOffset(self):
def check(src, lineno, offset, encoding='utf-8'):
with self.assertRaises(SyntaxError) as cm: