chore: make pre-commit happy

src/boost_histogram/_internal/axis.py

@@ -28,7 +28,6 @@ def _isstr(value: Any) -> bool:
     """
     Check to see if this is a stringlike or a (nested) iterable of stringlikes
     """
-
     if isinstance(value, (str, bytes)):
         return True
     elif hasattr(value, "__iter__"):
@@ -37,25 +36,25 @@ def _isstr(value: Any) -> bool:
         return False
 
 
-def _flatten(x):
-    if hasattr(x, '__iter__') and not isinstance(x, (str, bytes)):
+def _flatten(x: Any) -> List[Any]:
+    if hasattr(x, "__iter__") and not isinstance(x, (str, bytes)):
         return [a for i in x for a in _flatten(i)]
     else:
         return [x]
 
 
-def _missing(value: Any, ax: "Axis") -> bool:
+def _missing(value: Any, ax: "Axis") -> Union[None, List[Any]]:
     """
     Return value(s) that are not part of index.
     """
     if isinstance(value, (int, str, bytes)):
         parsed = [value]
     elif hasattr(value, "__iter__"):
         if isinstance(value, np.ndarray):
-            parsed = value.ravel()
+            parsed = [v for v in value.ravel()]
         else:
             parsed = _flatten(value)
-    missing = [p for p in parsed if p not in ax]
+    missing = [p for p in parsed if p not in list(ax)]
     if len(missing) > 0:
         return missing
     else:

tests/test_axis.py

@@ -679,13 +679,13 @@ def test_index(self):
         a = bh.axis.Integer(-1, 3)
         with pytest.raises(Exception):
             a.index(-3)
-        with pytest.raises(Exception):            
-            a.index(-2)    
+        with pytest.raises(Exception):
+            a.index(-2)
         assert a.index(-1) == 0
         assert a.index(0) == 1
         assert a.index(1) == 2
         assert a.index(2) == 3
-        with pytest.raises(Exception):            
+        with pytest.raises(Exception):
             a.index(3)
         with pytest.raises(Exception):
             a.index(4)