| #!/usr/bin/env python |
| # |
| # 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. |
| # |
| |
| import urllib |
| import tarfile |
| import os |
| import sys |
| import argparse |
| |
| |
| def extract_tarfile(filepath): |
| if os.path.exists(filepath): |
| print 'The tar file does exist. Extracting it now..' |
| with tarfile.open(filepath, 'r') as f: |
| f.extractall('.') |
| print 'Finished!' |
| sys.exit(0) |
| |
| |
| def check_dir_exist(dirpath): |
| if os.path.exists(dirpath): |
| print 'Directory %s does exist. To redownload the files, '\ |
| 'remove the existing directory and %s.tar.gz' % (dirpath, dirpath) |
| return True |
| else: |
| return False |
| |
| |
| def do_download(dirpath, gzfile, url): |
| if check_dir_exist(dirpath): |
| sys.exit(0) |
| print 'Downloading CIFAR10 from %s' % (url) |
| urllib.urlretrieve(url, gzfile) |
| extract_tarfile(gzfile) |
| print 'Finished!' |
| |
| |
| if __name__ == '__main__': |
| parser = argparse.ArgumentParser(description='Download Cifar10 datasets') |
| parser.add_argument( |
| 'file', |
| type=str, |
| choices=['py', 'bin']) |
| args = parser.parse_args() |
| if args.file == 'bin': |
| dirpath = 'cifar-10-batches-bin' |
| gzfile = 'cifar-10-binary' + '.tar.gz' |
| url = 'http://www.cs.toronto.edu/~kriz/cifar-10-binary.tar.gz' |
| do_download(dirpath, gzfile, url) |
| else: |
| dirpath = 'cifar-10-batches-py' |
| gzfile = 'cifar-10-python' + '.tar.gz' |
| url = 'http://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz' |
| do_download(dirpath, gzfile, url) |