Fix fixed numpy typing warnings

pymbolic/mapper/__init__.py

@@ -963,7 +963,7 @@ def map_numpy_array(self,
         import numpy
         result = numpy.empty(expr.shape, dtype=object)
         for i in numpy.ndindex(expr.shape):
-            result[i] = self.rec(expr[i], *args, **kwargs)  # type: ignore[assignment]
+            result[i] = self.rec(expr[i], *args, **kwargs)
 
         # True fact: ndarrays aren't expressions
         return result  # type: ignore[return-value]

pymbolic/mapper/evaluator.py

@@ -163,7 +163,7 @@ def map_numpy_array(self, expr: np.ndarray) -> ResultT:
         import numpy
         result = numpy.empty(expr.shape, dtype=object)
         for i in numpy.ndindex(expr.shape):
-            result[i] = self.rec(expr[i])  # type: ignore[call-overload]
+            result[i] = self.rec(expr[i])
         return result  # type: ignore[return-value]
 
     def map_multivector(self, expr: MultiVector) -> ResultT:

pymbolic/primitives.py

@@ -648,8 +648,8 @@ def __getitem__(self, subscript: _Expression | EmptyOK) -> ExpressionNode:
             return Subscript(self, subscript.child)
 
         if subscript == ():
-            warn("Expression.__getitem__ called with an empty tuple as an index. "
-                 "This still returns just the aggregate (not a Subscript), "
+            warn(f"{type(self).__name__}.__getitem__ called with an empty tuple as "
+                 "an index. This still returns just the aggregate (not a Subscript), "
                  "but this behavior will change in 2026. To avoid this warning "
                  "(and return a Subscript unconditionally), wrap the subscript "
                  "in pymbolic.primitives.EmptyOK.", DeprecationWarning, stacklevel=2)