gh-118527: Intern code consts in free-threaded build (#118667)

We already intern and immortalize most string constants. In the
free-threaded build, other constants can be a source of reference count
contention because they are shared by all threads running the same code
objects.

1 files changed, 7 insertions, 0 deletions

diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c
index f24b048..67bbbd0 100644
--- a/Python/pylifecycle.c
+++ b/Python/pylifecycle.c
@@ -854,6 +854,11 @@ pycore_interp_init(PyThreadState *tstate)
         return status;
     }
 
+    status = _PyCode_Init(interp);
+    if (_PyStatus_EXCEPTION(status)) {
+        return status;
+    }
+
     status = _PyDtoa_Init(interp);
     if (_PyStatus_EXCEPTION(status)) {
         return status;
@@ -1827,6 +1832,8 @@ finalize_interp_types(PyInterpreterState *interp)
 
     _PyTypes_Fini(interp);
 
+    _PyCode_Fini(interp);
+
     // Call _PyUnicode_ClearInterned() before _PyDict_Fini() since it uses
     // a dict internally.
     _PyUnicode_ClearInterned(interp);