# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. # pylint: disable=invalid-name, line-too-long, unused-variable, too-many-locals """gather in python""" import numpy as np def gather_python(data, axis, indices): """Python version of Gather operator Parameters ---------- data : numpy.ndarray Numpy array axis: int integer indices : numpy.ndarray Numpy array Returns ------- b_np : numpy.ndarray Numpy array """ shape_indices = indices.shape out = np.zeros(shape_indices, dtype=data.dtype) for index in np.ndindex(*shape_indices): new_index = list(index) new_index[axis] = indices[index] out[index] = data[tuple(new_index)] return out