@@ -1278,7 +1278,7 @@ code, or when embedding the Python interpreter:
12781278 This function is safe to call without an :term:`attached thread state`; it
12791279 will simply return ``NULL`` indicating that there was no prior thread state.
12801280
1281- .. seealso:
1281+ .. seealso::
12821282 :c:func:`PyEval_ReleaseThread`
12831283
12841284 .. note::
@@ -1289,6 +1289,19 @@ code, or when embedding the Python interpreter:
12891289The following functions use thread-local storage, and are not compatible
12901290with sub-interpreters:
12911291
1292+ .. c:type:: PyGILState_STATE
1293+
1294+ The type of the value returned by :c:func:`PyGILState_Ensure` and passed to
1295+ :c:func:`PyGILState_Release`.
1296+
1297+ .. c:enumerator:: PyGILState_LOCKED
1298+
1299+ The GIL was already held when :c:func:`PyGILState_Ensure` was called.
1300+
1301+ .. c:enumerator:: PyGILState_UNLOCKED
1302+
1303+ The GIL was not held when :c:func:`PyGILState_Ensure` was called.
1304+
12921305.. c:function:: PyGILState_STATE PyGILState_Ensure()
12931306
12941307 Ensure that the current thread is ready to call the Python C API regardless
@@ -1339,12 +1352,12 @@ with sub-interpreters:
13391352 made on the main thread. This is mainly a helper/diagnostic function.
13401353
13411354 .. note::
1342- This function does not account for :term:`thread states <thread state>` created
1343- by something other than :c:func:`PyGILState_Ensure` (such as :c:func:`PyThreadState_New`) .
1355+ This function may return non-``NULL`` even when the :term:`thread state`
1356+ is detached .
13441357 Prefer :c:func:`PyThreadState_Get` or :c:func:`PyThreadState_GetUnchecked`
13451358 for most cases.
13461359
1347- .. seealso: :c:func:`PyThreadState_Get` `
1360+ .. seealso:: :c:func:`PyThreadState_Get`
13481361
13491362.. c:function:: int PyGILState_Check()
13501363
@@ -1443,11 +1456,11 @@ All of the following functions must be called after :c:func:`Py_Initialize`.
14431456 must be :term:`attached <attached thread state>`
14441457
14451458 .. versionchanged:: 3.9
1446- This function now calls the :c:member:`PyThreadState.on_delete` callback.
1459+ This function now calls the :c:member:`! PyThreadState.on_delete` callback.
14471460 Previously, that happened in :c:func:`PyThreadState_Delete`.
14481461
14491462 .. versionchanged:: 3.13
1450- The :c:member:`PyThreadState.on_delete` callback was removed.
1463+ The :c:member:`! PyThreadState.on_delete` callback was removed.
14511464
14521465
14531466.. c:function:: void PyThreadState_Delete(PyThreadState *tstate)
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