Github user holdenk commented on a diff in the pull request: https://github.com/apache/spark/pull/15496#discussion_r90139924 --- Diff: python/pyspark/ml/linalg/__init__.py --- @@ -705,6 +705,22 @@ def __eq__(self, other): return Vectors._equals(self.indices, self.values, list(xrange(len(other))), other.array) return False + def __getattr__(self, item): + def wrapper(*args, **kwargs): + if _have_scipy: + csr = scipy.sparse.csr_matrix((np.append(self.values, 0), + np.append(self.indices, self.size-1), + [0, len(self.values)])) + func = getattr(csr, item) + result = func(*args, **kwargs) + if isinstance(result, scipy.sparse.csr.csr_matrix): + return SparseVector(result.shape[1],result.indices,result.data) + return result + else: + raise AttributeError( + "'{0}' object has no attribute '{1}' or SciPy not installed.".format(self.__class__, item)) --- End diff -- Ok so maybe we can improve the error message to something like "'{0}' object has no attribute '{1}' and SciPy is not installed to proxy request to SparseVector" (or similar). Because saying its X or Y is confusing since this error message only happens in the event SciPy is not installed. What do you think?
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