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bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670)

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* 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
This commit is contained in:
Victor Stinner 2020-04-23 03:03:24 +02:00 • committed by GitHub
parent a25f3c4c8f
commit 1def7754b7
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26 changed files with 83 additions and 54 deletions
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Lib/test/test_parser.py
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@ -900,7 +900,7 @@ class ParserStackLimitTestCase(unittest.TestCase):
st = parser.expr(e)
st.compile()
@unittest.skipIf(sys.flags.use_peg, "Pegen does not trigger memory error with this many parenthesis")
@support.skip_if_new_parser("Pegen does not trigger memory error with this many parenthesis")
def test_trigger_memory_error(self):
e = self._nested_expression(100)
rc, out, err = assert_python_failure('-Xoldparser', '-c', e)