AntiZpvoh commented on a change in pull request #18319:
URL: https://github.com/apache/incubator-mxnet/pull/18319#discussion_r453168025



##########
File path: python/mxnet/numpy/multiarray.py
##########
@@ -720,6 +720,28 @@ def __getitem__(self, key):
                 key = (_np.newaxis,) + key
             return self._get_np_basic_indexing(key)
         elif indexing_dispatch_code == _NDARRAY_ADVANCED_INDEXING:
+            if prepend == _NDARRAY_NO_ZERO_DIM_BOOL_ARRAY and isinstance(key, 
(NDArray, _np.ndarray)):

Review comment:
       @leezu My apology I found my mistake. It should be `isinstance(key, 
tuple)` instead of `isinstance(key, (NDArray, _np.ndarray))`. In that case 
codepath needs to be complex since we need to ensure the element of tuple is 
integer NDArray or np.ndarray (cannot be list maybe because list could not be 
symbolized) and also handle np.newaxis and implicit axis cases. The newest 
commit has already corrected this mistake.




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