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Use PyEval_InitThreads() as intended #4350

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Merged
merged 3 commits into from
Nov 22, 2022
Merged

Use PyEval_InitThreads() as intended #4350

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8838f38
Use `PyEval_InitThreads()` as intended (actually matters only for Pyt…
rwgk Nov 21, 2022
a272c17
Add `if defined(WITH_THREAD)` condition.
rwgk Nov 21, 2022
96a6bfa
Fix oversight pointed out by @EricCousineau-TRI: Remove condition tha…
rwgk Nov 22, 2022
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3 changes: 0 additions & 3 deletions include/pybind11/detail/internals.h
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Expand Up @@ -468,9 +468,6 @@ PYBIND11_NOINLINE internals &get_internals() {
internals_ptr = new internals();
#if defined(WITH_THREAD)

# if PY_VERSION_HEX < 0x03090000
PyEval_InitThreads();
# endif
PyThreadState *tstate = PyThreadState_Get();
if (!PYBIND11_TLS_KEY_CREATE(internals_ptr->tstate)) {
pybind11_fail("get_internals: could not successfully initialize the tstate TSS key!");
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6 changes: 6 additions & 0 deletions include/pybind11/embed.h
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Expand Up @@ -118,6 +118,9 @@ inline void initialize_interpreter(bool init_signal_handlers = true,
#if PY_VERSION_HEX < 0x030B0000

Py_InitializeEx(init_signal_handlers ? 1 : 0);
# if defined(WITH_THREAD) && PY_VERSION_HEX < 0x03070000
PyEval_InitThreads();
# endif

// Before it was special-cased in python 3.8, passing an empty or null argv
// caused a segfault, so we have to reimplement the special case ourselves.
Expand Down Expand Up @@ -168,6 +171,9 @@ inline void initialize_interpreter(bool init_signal_handlers = true,
throw std::runtime_error(PyStatus_IsError(status) ? status.err_msg
: "Failed to init CPython");
}
# if defined(WITH_THREAD) && PY_VERSION_HEX < 0x03070000
PyEval_InitThreads();
# endif
if (add_program_dir_to_path) {
PyRun_SimpleString("import sys, os.path; "
"sys.path.insert(0, "
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