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-rw-r--r--Doc/c-api/init.rst1
-rw-r--r--Doc/c-api/module.rst31
2 files changed, 32 insertions, 0 deletions
diff --git a/Doc/c-api/init.rst b/Doc/c-api/init.rst
index 60912a1..dd53fe2 100644
--- a/Doc/c-api/init.rst
+++ b/Doc/c-api/init.rst
@@ -1287,6 +1287,7 @@ function. You can create and destroy them using the following functions:
in any thread where the sub-interpreter is currently active.
Otherwise only multi-phase init extension modules
(see :pep:`489`) may be imported.
+ (Also see :c:macro:`Py_mod_multiple_interpreters`.)
This must be ``1`` (non-zero) if
:c:member:`~PyInterpreterConfig.use_main_obmalloc` is ``0``.
diff --git a/Doc/c-api/module.rst b/Doc/c-api/module.rst
index fa5e978..e37505f 100644
--- a/Doc/c-api/module.rst
+++ b/Doc/c-api/module.rst
@@ -376,6 +376,37 @@ The available slot types are:
If multiple ``Py_mod_exec`` slots are specified, they are processed in the
order they appear in the *m_slots* array.
+.. c:macro:: Py_mod_multiple_interpreters
+
+ Specifies one of the following values:
+
+ .. c:macro:: Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED
+
+ The module does not support being imported in subinterpreters.
+
+ .. c:macro:: Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED
+
+ The module supports being imported in subinterpreters,
+ but only when they share the main interpreter's GIL.
+ (See :ref:`isolating-extensions-howto`.)
+
+ .. c:macro:: Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
+
+ The module supports being imported in subinterpreters,
+ even when they have their own GIL.
+ (See :ref:`isolating-extensions-howto`.)
+
+ This slot determines whether or not importing this module
+ in a subinterpreter will fail.
+
+ Multiple ``Py_mod_multiple_interpreters`` slots may not be specified
+ in one module definition.
+
+ If ``Py_mod_multiple_interpreters`` is not specified, the import
+ machinery defaults to ``Py_MOD_MULTIPLE_INTERPRETERS_NOT_SUPPORTED``.
+
+ .. versionadded:: 3.12
+
See :PEP:`489` for more details on multi-phase initialization.
Low-level module creation functions