python3 tarfile内存内打包文件

# -*- coding: utf-8 -*-
import tarfile
import os
from io import BytesIO,StringIO
def tarDict(dict1):
fgz = BytesIO()
tar = tarfile.open(mode="w",fileobj=fgz)
ks=dict1.keys()
for key in ks:
tarinfo=tarfile.TarInfo(name=key)
f1=BytesIO(dict1[key].encode())
tarinfo.size=len(f1.read())
f1.seek(0)
tar.addfile(tarinfo,fileobj=f1)
tar.close()
return fgz
def output(fgz):
f=open("output.tar","w")
fgz.seek(0)
f.write(fgz.read().decode())
f.close()
byteio=tarDict({"a.txt":"aaaaaaaaaaaa","b.txt":"bbbbbbbbbbbbb"})
output(byteio)