fix: update _PyLong_AsByteArray call for Python 3.13 API changes (#1148)

MikePopoloski · Oct 10, 2024 · ffba2de · ffba2de
1 parent 71ba68b
commit ffba2de
Showing 1 changed file with 11 additions and 2 deletions.
diff --git a/bindings/python/NumericBindings.cpp b/bindings/python/NumericBindings.cpp
@@ -32,8 +32,17 @@ static SVInt SVIntFromPyInt(const py::int_& value) {
     size_t numBytes = ((bits - 1) / 32 + 1) * 4;
     std::vector<byte> mem(numBytes);
 
-    int r = _PyLong_AsByteArray(reinterpret_cast<PyLongObject*>(value.ptr()),
-                                reinterpret_cast<unsigned char*>(mem.data()), numBytes, 1, 1);
+    int r = -1;
+#if PY_VERSION_HEX < 0x030D0000
+    r = _PyLong_AsByteArray(reinterpret_cast<PyLongObject*>(value.ptr()),
+                            reinterpret_cast<unsigned char*>(mem.data()), numBytes, 1, 1);
+#else
+    // fix build error with python 3.13
+    r = _PyLong_AsByteArray(reinterpret_cast<PyLongObject*>(value.ptr()),
+                            reinterpret_cast<unsigned char*>(mem.data()), numBytes, 1, 1, 0);
+    // No exception is thrown here because it will be done later.
+#endif
+
     if (r == -1)
         throw py::error_already_set();