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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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3
Lib/test/test_peg_parser.py
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@ -6,6 +6,7 @@ import unittest
from pathlib import PurePath
from typing import Any, Union, Iterable, Tuple
from textwrap import dedent
from test import support
TEST_CASES = [
@ -720,7 +721,7 @@ class ASTGenerationTest(unittest.TestCase):
f"Actual error message does not match expexted for {source}"
)
@unittest.skipIf(sys.flags.use_peg, "This tests nothing for now, since compile uses pegen as well")
@support.skip_if_new_parser("This tests nothing for now, since compile uses pegen as well")
@unittest.expectedFailure
def test_correct_but_known_to_fail_ast_generation_on_source_files(self) -> None:
for source in GOOD_BUT_FAIL_SOURCES: