Author JunyiXie
Recipients JunyiXie
Date 2021-06-29.06:53:41
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1624949622.19.0.942644638958.issue44532@roundup.psfhosted.org>
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Content
In _PyStructSequence_InitType, it will check type is initialized.
but when we have multi subinterpreters, type may be initialized expected.

when type already been initialized, should return 0 rather than throw exception.
```c
/* PyTypeObject has already been initialized */
if (Py_REFCNT(type) != 0) {
    return 0;
}
```


```c
int
_PyStructSequence_InitType(PyTypeObject *type, PyStructSequence_Desc *desc,
                           unsigned long tp_flags)
{
    PyMemberDef *members;
    Py_ssize_t n_members, n_unnamed_members;

#ifdef Py_TRACE_REFS
    /* if the type object was chained, unchain it first
       before overwriting its storage */
    if (type->ob_base.ob_base._ob_next) {
        _Py_ForgetReference((PyObject *)type);
    }
#endif

    /* PyTypeObject has already been initialized */
    if (Py_REFCNT(type) != 0) {
        PyErr_BadInternalCall();
        return -1;
    }
```
History
Date User Action Args
2021-06-29 06:53:42JunyiXiesetrecipients: + JunyiXie
2021-06-29 06:53:42JunyiXiesetmessageid: <1624949622.19.0.942644638958.issue44532@roundup.psfhosted.org>
2021-06-29 06:53:42JunyiXielinkissue44532 messages
2021-06-29 06:53:41JunyiXiecreate