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[3.15] Set default arguments in _testlimitedcapi/unicode.c (GH-159380) #159411

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Merged
vstinner merged 1 commit into from
Oct 14, 2026
Merged

[3.15] Set default arguments in _testlimitedcapi/unicode.c (GH-159380) #159411

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Set default arguments in _testlimitedcapi/unicode.c (GH-159380) 
Some optional arguments had no default value leading to undefined
behavior if they were omitted.
(cherry picked from commit e96d943)

Co-authored-by: Victor Stinner <vstinner@python.org>
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@vstinner @miss-islington
vstinner authored and miss-islington committed Oct 14, 2026
commit 0f3f9bc522d9a9746b33625f84576f0893fe412b
12 changes: 6 additions & 6 deletions Modules/_testlimitedcapi/unicode.c
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Original file line number Diff line number Diff line change
Expand Up @@ -946,7 +946,7 @@ unicode_encodecodepage(PyObject *self, PyObject *args)
{
int code_page;
PyObject *unicode;
const char *errors;
const char *errors = NULL;

if (!PyArg_ParseTuple(args, "iO|z", &code_page, &unicode, &errors))
return NULL;
Expand All @@ -963,7 +963,7 @@ unicode_decodelocaleandsize(PyObject *self, PyObject *args)
{
const char *data;
Py_ssize_t size;
const char *errors;
const char *errors = NULL;

if (!PyArg_ParseTuple(args, "y#|z", &data, &size, &errors))
return NULL;
Expand All @@ -977,7 +977,7 @@ unicode_decodelocale(PyObject *self, PyObject *args)
{
const char *data;
Py_ssize_t size;
const char *errors;
const char *errors = NULL;

if (!PyArg_ParseTuple(args, "y#|z", &data, &size, &errors))
return NULL;
Expand All @@ -990,7 +990,7 @@ static PyObject *
unicode_encodelocale(PyObject *self, PyObject *args)
{
PyObject *unicode;
const char *errors;
const char *errors = NULL;

if (!PyArg_ParseTuple(args, "O|z", &unicode, &errors))
return NULL;
Expand Down Expand Up @@ -1284,7 +1284,7 @@ unicode_comparewithasciistring(PyObject *self, PyObject *args)
{
PyObject *left;
const char *right = NULL;
Py_ssize_t right_len;
Py_ssize_t right_len = 0;
int result;

if (!PyArg_ParseTuple(args, "O|y#", &left, &right, &right_len))
Expand Down Expand Up @@ -1323,7 +1323,7 @@ unicode_equaltoutf8andsize(PyObject *self, PyObject *args)
{
PyObject *left;
const char *right = NULL;
Py_ssize_t right_len;
Py_ssize_t right_len = 0;
Py_ssize_t size = -100;
int result;

Expand Down
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