What is the meaning of Entry.is_arg flag? For generic python arguments it's set to 0, it makes it very tricky to determinate whether entry is argument: https://github.com/cython/cython/blob/master/Cython/Compiler/FlowControl.py#L515 Can we have is_args flag set for all kind of args? And have all the args inside scope.arg_entries? -- vitja.