mypy fixup

Author: jbrockmendel

pandas/core/internals/construction.py

@@ -297,7 +297,12 @@ def ndarray_to_mgr(
         if isinstance(values, (np.ndarray, ExtensionArray)) and values.ndim > 1:
             # GH#12513 a EA dtype passed with a 2D array, split into
             #  multiple EAs that view the values
-            values = [values[:, n] for n in range(values.shape[1])]
+            # error: No overload variant of "__getitem__" of "ExtensionArray"
+            # matches argument type "Tuple[slice, int]"
+            values = [
+                values[:, n]  # type: ignore[call-overload]
+                for n in range(values.shape[1])
+            ]
         else:
             values = [values]