also cythonized py3.10 special case

Author: penguinolog

logwrap/repr_utils.pyx

@@ -191,6 +191,9 @@ cdef class PrettyFormat:
             sig = inspect.signature(src)
             if sig.return_annotation is inspect.Parameter.empty:
                 annotation = ""
+            elif sig.return_annotation is type(None):  # noqa: E721
+                # Python 3.10 special case
+                annotation = " -> None"
             else:
                 annotation = f" -> {getattr(sig.return_annotation, '__name__', sig.return_annotation)!s}"