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bpo-45000: Raise SyntaxError when try to delete __debug__ (GH-27947)

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Dong-hee Na 2021-08-25 17:54:20 +00:00 • committed by GitHub
parent 24da544014
commit 551da597a0
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4 changed files with 12 additions and 0 deletions
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2
Doc/whatsnew/3.11.rst
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@ -176,6 +176,8 @@ Other CPython Implementation Changes
support :class:`typing.SupportsComplex` and :class:`typing.SupportsBytes` protocols.
(Contributed by Mark Dickinson and Dong-hee Na in :issue:`24234`.)
* A :exc:`SyntaxError` (instead of a :exc:`NameError`) will be raised when deleting the :const:`__debug__` constant. (Contributed by Dong-hee Na in :issue:`45000`.)
New Modules
===========

4
Lib/test/test_syntax.py
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@ -59,6 +59,10 @@ SyntaxError: cannot assign to __debug__
Traceback (most recent call last):
SyntaxError: cannot assign to __debug__
>>> del __debug__
Traceback (most recent call last):
SyntaxError: cannot delete __debug__
>>> f() = 1
Traceback (most recent call last):
SyntaxError: cannot assign to function call here. Maybe you meant '==' instead of '='?

2
Misc/NEWS.d/next/Core and Builtins/2021-08-25-23-17-32.bpo-45000.XjmyLl.rst Normal file
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@ -0,0 +1,2 @@
A :exc:`SyntaxError` is now raised when trying to delete :const:`__debug__`.
Patch by Dong-hee Na.

4
Python/compile.c
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@ -2343,6 +2343,10 @@ forbidden_name(struct compiler *c, identifier name, expr_context_ty ctx)
compiler_error(c, "cannot assign to __debug__");
return 1;
}
if (ctx == Del && _PyUnicode_EqualToASCIIString(name, "__debug__")) {
compiler_error(c, "cannot delete __debug__");
return 1;
}
return 0;
}