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gh-156939: Fix Modules/_testcapi/bytes.c: remove double Py_DECREF by vstinner · Pull Request #158400 · python/cpython · GitHub

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gh-156939: Fix Modules/_testcapi/bytes.c: remove double Py_DECREF #158400

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Merged
vstinner merged 1 commit into from
Sep 29, 2026
Conversation 3 Commits 1 Checks 62 Files changed
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gh-156939: Fix Modules/_testcapi/bytes.c: remove double Py_DECREF #158400

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9 changes: 4 additions & 5 deletions Modules/_testcapi/bytes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -339,7 +339,7 @@ static PyMethodDef writer_methods[] = {
{"get_size", _PyCFunction_CAST(writer_get_size), METH_NOARGS},
{"finish", _PyCFunction_CAST(writer_finish), METH_NOARGS},
{"finish_with_size", _PyCFunction_CAST(writer_finish_with_size), METH_VARARGS},
{"discard", _PyCFunction_CAST(writer_discard), METH_VARARGS},
{"discard", _PyCFunction_CAST(writer_discard), METH_NOARGS},
{NULL, NULL} /* sentinel */
};

Expand Down Expand Up @@ -470,7 +470,7 @@ test_byteswriter_ptr(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
memset(str, 'x', 100);
str += 100;

// make sure that the test switchs to a bytes object
// make sure that the test switches to a bytes object
assert((100 + 200) > pybyteswriter_small_buffer_size());
char *old_str = str;
str = PyBytesWriter_GrowAndUpdatePointer(writer, 200, str);
Expand All @@ -489,10 +489,10 @@ test_byteswriter_ptr(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
}
assert(PyBytes_GET_SIZE(result) == 300);
str = PyBytes_AS_STRING(result);
for (Py_ssize_t i=0; i < 100; i++) {
for (Py_ssize_t i = 0; i < 100; i++) {
assert(str[i] == 'x');
}
for (Py_ssize_t i=0; i < 200; i++) {
for (Py_ssize_t i = 0; i < 200; i++) {
assert(str[100 + i] == 'y');
}
Py_DECREF(result);
Expand Down Expand Up @@ -615,7 +615,6 @@ _PyTestCapi_Init_Bytes(PyObject *m)
// PyBytesWriter.obj is the second member, small_buffer is the first member
long size = (long)pybyteswriter_small_buffer_size();
if (PyModule_AddIntConstant(m, "PyBytesWriter_small_buffer", size) < 0) {
Py_DECREF(writer_type);
return -1;
}

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