correct type hints

Author: rmorshea

idom/client/utils.py

@@ -37,7 +37,7 @@ def __init__(
         self._stopped = Event()
         if not show:
             # do nothing on display
-            self.display = lambda *a, **kw: None
+            self.display: Callable[[Optional[str], str], None] = lambda frm, txt: None
         elif display_function is not None:
             self.display = display_function
         else:

idom/widgets/module.py

@@ -126,4 +126,4 @@ def _is_url(string: str) -> bool:
         return True
     else:
         parsed = urlparse(string)
-        return parsed.scheme and parsed.netloc
+        return bool(parsed.scheme and parsed.netloc)