avoid infinite recursion

pandas-dev · Jul 27, 2018 · 60de53c · 60de53c
1 parent 389ebcd
commit 60de53c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
@@ -999,8 +999,8 @@ def putmask(self, mask, new, align=True, inplace=False, axis=0,
                 if not (mask.shape[-1] == len(new) or
                         mask[mask].shape[-1] == len(new) or
                         len(new) == 1):
-                    raise ValueError("cannot assign mismatch "
-                                     "length to masked array")
+                    raise NotImplementedError("cannot assign mismatch "
+                                              "length to masked array")
 
             np.putmask(new_values, mask, new)