mrkn commented on a change in pull request #7477:
URL: https://github.com/apache/arrow/pull/7477#discussion_r443928439
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File path: python/pyarrow/tensor.pxi
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@@ -199,7 +202,13 @@ shape: {0.shape}""".format(self)
for x in dim_names:
c_dim_names.push_back(tobytes(x))
- coords = np.vstack([obj.row, obj.col]).T
+ row = obj.row
+ col = obj.col
+ if obj.has_canonical_format:
Review comment:
The attribute [actually
exists](https://github.com/scipy/scipy/blob/master/scipy/sparse/coo.py#L137)
but not documented. It may be an internal attribute, but it does not have `_`
prefix, so I detect it can be used. I need to refer this attribute to
recognize whether or not a given SciPy's coo_matrix has canonical format.
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