[lldb] Adapt code to Python 3.13 (#70445)

1. Remove usage of PyEval_ThreadsInitialized and PyEval_InitThreads

Both of these functions were removed in Python 3.13 [1] after being
deprecated since Python 3.9.

According to "What's new in Python 3.13" document [1]:

    Since Python 3.7, Py_Initialize() always creates the GIL: calling
    PyEval_InitThreads() did nothing and PyEval_ThreadsInitialized()
    always returned non-zero.

2. Replace _Py_IsFinalizing() with Py_IsFinalizing().

[1] https://docs.python.org/3.13/whatsnew/3.13.html
This commit is contained in:
Tulio Magno Quites Machado Filho 2023-10-30 08:55:34 -03:00 committed by GitHub
parent 8483d18be5
commit b2929bebb6
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2 changed files with 12 additions and 1 deletions

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@ -71,7 +71,9 @@ Expected<std::string> python::As<std::string>(Expected<PythonObject> &&obj) {
}
static bool python_is_finalizing() {
#if PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION < 7
#if (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 13) || (PY_MAJOR_VERSION > 3)
return Py_IsFinalizing();
#elif PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION < 7
return _Py_Finalizing != nullptr;
#else
return _Py_IsFinalizing();

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@ -179,18 +179,27 @@ private:
return;
#endif
// `PyEval_ThreadsInitialized` was deprecated in Python 3.9 and removed in
// Python 3.13. It has been returning `true` always since Python 3.7.
#if (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION < 9) || (PY_MAJOR_VERSION < 3)
if (PyEval_ThreadsInitialized()) {
#endif
Log *log = GetLog(LLDBLog::Script);
m_was_already_initialized = true;
m_gil_state = PyGILState_Ensure();
LLDB_LOGV(log, "Ensured PyGILState. Previous state = {0}locked\n",
m_gil_state == PyGILState_UNLOCKED ? "un" : "");
// `PyEval_InitThreads` was deprecated in Python 3.9 and removed in
// Python 3.13.
#if (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION < 9) || (PY_MAJOR_VERSION < 3)
return;
}
// InitThreads acquires the GIL if it hasn't been called before.
PyEval_InitThreads();
#endif
}
PyGILState_STATE m_gil_state = PyGILState_UNLOCKED;