[libgpiod][PATCH 6/9] bindings: python: use PyImport_ImportModuleAttrString when available

[Vincent Fazio <vfazio@gmail.com>]

Commit 035ad74fdd introduced Py_gpiod_GetModuleAttrString as a way to
get a module's attribute and was inspired by CPython's internal function
_PyImport_GetModuleAttrString.

CPython 3.14 added PyImport_ImportModuleAttrString to the public API [0]
which allows us to use the standard function when available.

[0]: https://github.com/python/cpython/pull/128912

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
---
 bindings/python/gpiod/ext/common.c   |  3 +++
 bindings/python/gpiod/ext/internal.h | 10 ++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/bindings/python/gpiod/ext/common.c b/bindings/python/gpiod/ext/common.c
index 7d2dda7..fc28e96 100644
--- a/bindings/python/gpiod/ext/common.c
+++ b/bindings/python/gpiod/ext/common.c
@@ -64,6 +64,8 @@ PyObject *Py_gpiod_SetErrFromErrno(void)
 	return PyErr_SetFromErrno(exc);
 }
 
+/* TODO: remove when 3.14 is the minimum version */
+#if PY_VERSION_HEX < 0x030E0000
 PyObject *Py_gpiod_GetModuleAttrString(const char *modname,
 				       const char *attrname)
 {
@@ -78,6 +80,7 @@ PyObject *Py_gpiod_GetModuleAttrString(const char *modname,
 
 	return attribute;
 }
+#endif
 
 unsigned int Py_gpiod_PyLongAsUnsignedInt(PyObject *pylong)
 {
diff --git a/bindings/python/gpiod/ext/internal.h b/bindings/python/gpiod/ext/internal.h
index 15aedfb..2996884 100644
--- a/bindings/python/gpiod/ext/internal.h
+++ b/bindings/python/gpiod/ext/internal.h
@@ -8,8 +8,6 @@
 #include <Python.h>
 
 PyObject *Py_gpiod_SetErrFromErrno(void);
-PyObject *Py_gpiod_GetModuleAttrString(const char *modname,
-				       const char *attrname);
 unsigned int Py_gpiod_PyLongAsUnsignedInt(PyObject *pylong);
 void Py_gpiod_dealloc(PyObject *self);
 PyObject *Py_gpiod_MakeRequestObject(struct gpiod_line_request *request,
@@ -17,4 +15,12 @@ PyObject *Py_gpiod_MakeRequestObject(struct gpiod_line_request *request,
 struct gpiod_line_config *Py_gpiod_LineConfigGetData(PyObject *obj);
 struct gpiod_line_settings *Py_gpiod_LineSettingsGetData(PyObject *obj);
 
+#if PY_VERSION_HEX >= 0x030E0000
+/* Alias to standard function available in 3.14 */
+#define Py_gpiod_GetModuleAttrString PyImport_ImportModuleAttrString
+#else
+PyObject *Py_gpiod_GetModuleAttrString(const char *modname,
+				       const char *attrname);
+#endif /* PY_VERSION_HEX >= 0x030E0000 */
+
 #endif /* __LIBGPIOD_PYTHON_MODULE_H__ */
-- 
2.43.0