Created
May 17, 2016 07:27
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Amazon S3と永続化ファイルを経由せずにjson.gzを取り扱う (boto3を利用)
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| #!/usr/bin/env python | |
| # -*- coding: utf-8 -*- | |
| import json | |
| import gzip | |
| import StringIO | |
| import boto3 | |
| def upload(bucket, key, obj): | |
| s3 = boto3.client('s3') | |
| inmem = StringIO.StringIO() | |
| with gzip.GzipFile(fileobj=inmem, mode='wb') as fh: | |
| fh.write(json.dumps(obj)) | |
| inmem.seek(0) | |
| s3.put_object(Bucket=bucket, Body=inmem, Key=key) | |
| def download(bucket, key, else_value=None): | |
| s3 = boto3.client('s3') | |
| response = s3.get_object(Bucket=bucket, Key=key) | |
| content = response['Body'].read() | |
| with gzip.GzipFile(fileobj=StringIO.StringIO(content)) as fh: | |
| try: | |
| return json.loads(fh.read()) | |
| except Exception as e: | |
| return else_value | |
| if __name__ == '__main__': | |
| BUCKET_NAME = '' | |
| KEY_NAME = '' | |
| upload(BUCKET_NAME, KEY_NAME, { u'あ': u'いうえお' }) | |
| obj = download(BUCKET_NAME, KEY_NAME) | |
| print obj.get(u'あ') |
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Nice!!! Very Useful....