Improve error message when the SetDataFromArray does not match (sofa-framework#554)

* Improve error message when the SetDataFromArray does not match

* Apply suggestions from code review

---------

Co-authored-by: Hugo <hugo.talbot@sofa-framework.org>

Author: 2 people

bindings/Sofa/src/SofaPython3/Sofa/Core/Binding_Base.cpp

@@ -245,8 +245,12 @@ void BindingBase::SetDataFromArray(BaseData* data, const py::array& value)
                 return copyScalar<double>(data, nfo, src);
             else if(srcinfo.format=="f")
                 return copyScalar<float>(data, nfo, src);
-            else
-                throw std::runtime_error("SetAttrFromArray :: unsupported fileformat");
+           else
+           {
+                std::stringstream tmp;
+                tmp << "SetAttrFromArray :: unsupported fileformat '" <<  srcinfo.format << "'" ;
+                throw std::runtime_error(tmp.str());
+            }
         }
 
     }