gzip模块详解

包方法：

GzipFile
open

gzip_file = gzip.open('B5-H.pickle.gz')
>>> type(tar_file)
<class 'gzip.GzipFile'>

tar_file1 = gzip.GzipFile('testtar.tar')
>>> type(tar_file1)
<class 'gzip.GzipFile'>

compress

s_in = b"Lots of content here"
s_out = gzip.compress(s_in)

>>> s_out
b'\x1f\x8b\x08\x00\xeb\x01\x1bd\x02\xff\xf3\xc9/)V\xc8OSH\xce\xcf+I\xcd+Q\xc8H-J\x05\x00~u \x8e\x14\x00\x00\x00'

decompress

>>> s_out = gzip.decompress(s_out)
>>> s_out
b'Lots of content here'

　　GzipFile类方法

属性
name
mtime
closed

方法
tell	    当前指针位置
rewind	    重置到0开始的位置
seek	 	Change stream position
truncate	Truncate file to size bytes
peek         peek(n) 可在不移动文件指针的情况下读取n个未压缩字节
flush  Flush write buffers, if applicable
'close', 
'read', 'readline', 'readlines', 
'write', 'writelines'