bob.bio.gmm.test.test_algorithms.test_isv raises a FutureWarning with numpy 1.18
bob.bio.gmm.test.test_algorithms.test_isv ... /opt/conda/lib/python3.6/site-packages/bob/bio/gmm/algorithm/ISV.py:76: FutureWarning: arrays to stack must be passed as a "sequence" type such as list or tuple. Support for non-sequence iterables such as generators is deprecated as of NumPy 1.16 and will raise an error in the future. data1 = numpy.vstack(feature for client in train_features for feature in client)