1 files changed, 4 insertions, 0 deletions
diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c
index 9eaf493a652..c4c1d9fd9e1 100644
--- a/Python/pylifecycle.c
+++ b/Python/pylifecycle.c
@@ -854,6 +854,10 @@ error:
 static PyStatus
 pycore_interp_init(PyThreadState *tstate)
 {
+    _PyThreadStateImpl *_tstate = (_PyThreadStateImpl *)tstate;
+    if (_tstate->c_stack_hard_limit == 0) {
+        _Py_InitializeRecursionLimits(tstate);
+    }
     PyInterpreterState *interp = tstate->interp;
     PyStatus status;
     PyObject *sysmod = NULL;