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gh-94947: Disallow parsing walrus with feature_version < (3, 8) (#94948)

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* gh-94947: Disallow parsing walrus with feature_version < (3, 8)

* oops, commit the parser

* 📜🤖 Added by blurb_it.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
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Shantanu 2022-07-18 02:20:12 -07:00 • committed by GitHub
parent 97b4121f93
commit ae0be5a53b
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4 changed files with 10 additions and 2 deletions
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Lib/test/test_ast.py
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@ -743,6 +743,11 @@ class AST_Tests(unittest.TestCase):
with self.assertRaises(SyntaxError):
ast.parse('f"{x=}"', feature_version=(3, 7))
def test_assignment_expression_feature_version(self):
ast.parse('(x := 0)', feature_version=(3, 8))
with self.assertRaises(SyntaxError):
ast.parse('(x := 0)', feature_version=(3, 7))
def test_constant_as_name(self):
for constant in "True", "False", "None":
expr = ast.Expression(ast.Name(constant, ast.Load()))