Ensure TypeError use raise_from for C++->Python overload res. (#3671)

pybind · Jan 31, 2022 · ce18721 · ce18721
1 parent 978617f
commit ce18721
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/include/pybind11/pybind11.h b/include/pybind11/pybind11.h
@@ -988,6 +988,13 @@ class cpp_function : public function {
             }
 
             append_note_if_missing_header_is_suspected(msg);
+#if PY_VERSION_HEX >= 0x03030000
+            // Attach additional error info to the exception if supported
+            if (PyErr_Occurred()) {
+                raise_from(PyExc_TypeError, msg.c_str());
+                return nullptr;
+            }
+#endif
             PyErr_SetString(PyExc_TypeError, msg.c_str());
             return nullptr;
         }