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gh-142029: Raise TypeError instead of crashing on empty name given to create_builtin() #142033

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gh-142029: Raise TypeError instead of crashing on empty name given to create_builtin() #142033

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ddcf7e4
Check that `name` is non-empty in `_imp.create_builtin()`
dr-carlos Nov 28, 2025
901b039
Edit NEWS entry
dr-carlos Nov 28, 2025
784c232
Don't use `:func:` in NEWS for undocumented function
dr-carlos Nov 28, 2025
5102f3d
Update function name in NEWS entry
dr-carlos Nov 28, 2025
0350177
Add simple tests for `create_builtin()`
dr-carlos Nov 28, 2025
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2025-11-28-16-45-07.gh-issue-142029.JuXiKu.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Raise :exc:`TypeError` instead of crashing when empty string is used as a
name in ``importlib._imp.create_builtin``.
7 changes: 7 additions & 0 deletions Python/import.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4420,6 +4420,13 @@ _imp_create_builtin(PyObject *module, PyObject *spec)
return NULL;
}

if (PyUnicode_GetLength(name) == 0) {
PyErr_Format(PyExc_TypeError,
"name must not be empty");
Py_DECREF(name);
return NULL;
}

PyObject *mod = create_builtin(tstate, name, spec, NULL);
Py_DECREF(name);
return mod;
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