New submission from Rémi Lapeyre <remi.lape...@henki.fr>: While looking at issue 36287 I noticed that the argument parsing logic in _ast.ast_type_init is wrong, for example ast.Constant takes only one argument:
✗ ./python.exe Python 3.8.0a2+ (remotes/origin/HEAD-1-ged9b774cf3:ed9b774cf3, Mar 14 2019, 00:50:47) [Clang 10.0.0 (clang-1000.10.44.4)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import ast >>> ast.Constant(1, 2) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: Constant constructor takes at most 1 positional argument >>> ast.Constant(1) <_ast.Constant object at 0x105b52950> >>> ast.Constant(value=2) <_ast.Constant object at 0x105b528f0> >>> ast.Constant(1, value=2) <_ast.Constant object at 0x105b529b0> >>> ast.Constant(1, value=2).value 2 The last lines should have raised TypeError. I could reproduce the issue with Python 2.7, 3.7 and 3.8 but I'm not sure it's worth fixing for 2.7. I will write a patch to fix the issue. ---------- components: Library (Lib) messages: 337926 nosy: remi.lapeyre priority: normal severity: normal status: open title: _ast.ast_type_init does not handle args and kwargs correctly. type: behavior versions: Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36290> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
