pythongzip字符串压缩_如何使用gzip压缩字符串并在python2.7中进行编码

下面是Python2.7的完整工作示例。注意&＃xff0c;gzip_s.write()返回写入的字节数&＃xff0c;因此您的代码将向redisConn.set("myKey", result)传递一个int。另外&＃xff0c;如果您需要存储非ASCII数据&＃xff0c;您可能应该显式地对数据进行编码和解码&＃xff0c;以避免意外的编码/解码错误。在# -*- coding: utf-8 -*-

import redis

import StringIO

import gzip

redis_cxn &＃61; redis.StrictRedis(host&＃61;&＃39;127.0.0.1&＃39;, port&＃61;6379, db&＃61;0)

test_data &＃61; u&＃39;This is some test data with a non-ASCII character: ñ&＃39;

print &＃39;Test data:\n &＃39;, test_data

out_file &＃61; StringIO.StringIO()

gzip_file &＃61; gzip.GzipFile(fileobj&＃61;out_file, mode&＃61;&＃39;wb&＃39;)

# If you don&＃39;t encode the data yourself, it will be implicitly encoded as

# ASCII.

gzip_file.write(test_data.encode(&＃39;utf-8&＃39;))

gzip_file.close()

# Get the bytes written to the underlying file object

value &＃61; out_file.getvalue()

print &＃39;Setting value in Redis&＃39;

redis_cxn.set(&＃39;key&＃39;, value)

print &＃39;Getting value from Redis&＃39;

retrieved_value &＃61; redis_cxn.get(&＃39;key&＃39;)

assert retrieved_value &＃61;&＃61; value

in_file &＃61; StringIO.StringIO()

in_file.write(retrieved_value)

in_file.seek(0)

gzip_file &＃61; gzip.GzipFile(fileobj&＃61;in_file, mode&＃61;&＃39;rb&＃39;)

retrieved_data &＃61; gzip_file.read()

retrieved_data &＃61; retrieved_data.decode(&＃39;utf-8&＃39;)

gzip_file.close()

assert retrieved_data &＃61;&＃61; test_data

print &＃39;Data retrieved from Redis and unzippped:\n &＃39;, test_data