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when arguments are cells clear the locals slot (backport of #17927)

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Benjamin Peterson 2013-05-14 22:31:26 -05:00
parent d486707d2e
commit e1b4cbc422
5 changed files with 63 additions and 2 deletions
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8
Python/ceval.c
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@ -3403,10 +3403,14 @@ PyEval_EvalCodeEx(PyObject *_co, PyObject *globals, PyObject *locals,
int arg;
/* Possibly account for the cell variable being an argument. */
if (co->co_cell2arg != NULL &&
(arg = co->co_cell2arg[i]) != CO_CELL_NOT_AN_ARG)
(arg = co->co_cell2arg[i]) != CO_CELL_NOT_AN_ARG) {
c = PyCell_New(GETLOCAL(arg));
else
/* Clear the local copy. */
SETLOCAL(arg, NULL);
}
else {
c = PyCell_New(NULL);
}
if (c == NULL)
goto fail;
SETLOCAL(co->co_nlocals + i, c);