bindings/python: rephrase for Python 3.9 deprecation (call API)

The PyEval_CallObject() routine was deprecated in Python 3.9, use
PyObject_CallObject() instead which has existed since at least 3.0.

There are also PyEval_InitThreads() deprecation warnings, but these
originate from SWIG generated code and are outside of our control.
Requires SWIG version 4.1 to silence these.

Tested-By: Sascha Silbe <redacted>

diff --git a/bindings/python/sigrok/core/classes.i b/bindings/python/sigrok/core/classes.i
index 8bccae1d5271aa98ebadf15baab4f07bcb3fa55d..d22db1c150f2cca2f244bb12a16e904762590f4c 100644 (file)
--- a/bindings/python/sigrok/core/classes.i
+++ b/bindings/python/sigrok/core/classes.i
@@ -134,7 +134,7 @@ typedef guint pyg_flags_type;
 
         auto arglist = Py_BuildValue("(OO)", log_obj, string_obj);
 
-        auto result = PyEval_CallObject($input, arglist);
+        auto result = PyObject_CallObject($input, arglist);
 
         Py_XDECREF(arglist);
         Py_XDECREF(log_obj);
@@ -177,7 +177,7 @@ typedef guint pyg_flags_type;
     $1 = [=] () {
         const auto gstate = PyGILState_Ensure();
 
-        const auto result = PyEval_CallObject($input, nullptr);
+        const auto result = PyObject_CallObject($input, nullptr);
         const bool completed = !PyErr_Occurred();
         const bool valid_result = (completed && result == Py_None);
 
@@ -221,7 +221,7 @@ typedef guint pyg_flags_type;
 
         auto arglist = Py_BuildValue("(OO)", device_obj, packet_obj);
 
-        auto result = PyEval_CallObject($input, arglist);
+        auto result = PyObject_CallObject($input, arglist);
 
         Py_XDECREF(arglist);
         Py_XDECREF(device_obj);