python: fix cdata to work with Python 3.x.

[libsigrok.git] / bindings / python / sigrok / core / lowlevel.i

diff --git a/bindings/python/sigrok/core/lowlevel.i b/bindings/python/sigrok/core/lowlevel.i
index 28abd50d7850ee8cb280adf5c74ca93835910955..32695f68a3edd602b9b1ac077b105eb2bdcfabbd 100644 (file)
--- a/bindings/python/sigrok/core/lowlevel.i
+++ b/bindings/python/sigrok/core/lowlevel.i
@@ -69,6 +69,17 @@ int sr_session_datafeed_python_callback_add(PyObject *cb)
     }
 }
 
+PyObject *cdata(const void *data, unsigned long size)
+{
+#if PY_MAJOR_VERSION < 3
+    return PyString_FromStringAndSize(data, size);
+#else
+    return PyBytes_FromStringAndSize(data, size);
+#endif
+}
+
 %}
 
 int sr_session_datafeed_python_callback_add(PyObject *cb);
+
+PyObject *cdata(const void *data, unsigned long size);