fix NumericIndex_ensure_dtype

pandas-dev · Dec 20, 2022 · 03c5968 · 03c5968
1 parent 78f7b2d
commit 03c5968
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/pandas/core/indexes/numeric.py b/pandas/core/indexes/numeric.py
@@ -210,10 +210,7 @@ def _ensure_dtype(cls, dtype: Dtype | None) -> np.dtype | None:
         dtype = pandas_dtype(dtype)
         if not isinstance(dtype, np.dtype):
             raise TypeError(f"{dtype} not a numpy type")
-        if dtype == np.float16:
-            # float16 not supported (no indexing engine)
-            dtype = np.dtype(np.float32)
-        if dtype == "float16":
+        elif dtype == np.float16:
             # float16 not supported (no indexing engine)
             raise NotImplementedError("float16 indexes are not supported")