MAINT: add error message

Heerozh · Feb 29, 2020 · faf062b · faf062b
1 parent 7407a9d
commit faf062b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/spectre/factors/factor.py b/spectre/factors/factor.py
@@ -276,7 +276,8 @@ def __init__(self, win: Optional[int] = None, inputs: Optional[Sequence[BaseFact
             self.win = win
         if inputs:
             self.inputs = inputs
-        assert isinstance(self.inputs, (list, tuple, type(None))), 'inputs must be a list.'
+        assert isinstance(self.inputs, (list, tuple, type(None))), '`factor.inputs` must be a list.'
+        assert isinstance(self.win, int), '`factor.win` must be a integer.'
 
         assert (self.win >= (self._min_win or 1))