New submission from junyixie <xie.ju...@outlook.com>:
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;
}
```
----------
components: Subinterpreters
messages: 396703
nosy: JunyiXie
priority: normal
severity: normal
status: open
title: multi subinterpreters use _PyStructSequence_InitType failed.
type: crash
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44532>
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