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alimama_reader.py
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alimama_reader.py
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# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed 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.
from __future__ import print_function
import numpy as np
from paddle.io import IterableDataset
class RecDataset(IterableDataset):
def __init__(self, file_list, config):
super(RecDataset, self).__init__()
self.file_list = file_list
def __iter__(self):
for file in self.file_list:
with open(file, "r") as rf:
for l in rf:
l = l.strip().split(",")
l = [
'0' if i == '' or i.upper() == 'NULL' else i for i in l
] # handle missing values
output_list = []
output_list.append(np.array(l).astype('float32'))
yield output_list